ULLE TIN
Vol. 18, No. 4, July 1992
Titan IV SRMU Test Fire d
A long-awaited test firing of th e
Titan IV Solid Rocket Motor Upgrad e
(SRMU) was completed at a Phillips Labo ratory/Edwards AFB test stand on 12 Jun e
1992 . Preliminary data indicated a successful test . The Titan IV SRMU generated 1 .7-million pounds of thrust during
the 140-second firing duration . This test
validated the extensive analysis and rede sign effort following the initial test of the
motor in April 1991 .
Built by Hercules, Incorporated at
Magna, Utah, the motor features a num ber of significant technology improvements, including a filament wound graph ite fiber/epoxy composite motor case, a
wound elastomeric insulator, an alumi -
nized HTPB propellant, and a flex-sea l
thrust vector control system . The motor
will permit launches of heavier payload s
due to the significant propellant performance improvement and lighter weight
components when compared to older det
signs and materials . A 25% increase in lif
capacity is projected for the Titan IV wit h
the SRMU .
The successful test was the first o f
five planned as part of the qualificatio n
program for the SRMU . Detailed analysi s
of test results, including delivered specific impulse, burn time, thrust-time history, etc ., will be required to compare
continued on page 4
Hercules' Solid Rocket Motor Upgrade
was test fired in June.
Orbus Motor Boosts IntelsatV l
chronous orbit over the Atlantic Ocean.
The satellite will be used this summer t o
relay television signals from the Sumne r
Olympics in Barcelona, Spain . §
In a flurry of extravehicular activity, NASA astronauts captured th e
Intelsat VI/F3 satellite, connected an
Orbus 21S perigee kick motor, and stoo d
by 400 miles away while the satellite was
boosted to a useful geosynchronous orbit .
After three attempts, the crew of th e
Space Shuttle Endeavour finally snared
the errant satellite on May 13, 1992 . Th e
Orbus 21S solid rocket motor weigh s
21,000 pounds and was manufactured b y
United Technologies Chemical System s
Division, San Jose, California.
Contents:
CP IA's Technical Inquirie s
The Orbus 21S boosted its payload to a supersynchronous elliptical transfer orbit with an apogee of 45,000 miles .
Liquid propellant engines were then use d
to move the orbit into Earth's equatoria l
plane and to a final, 22,000-mile, geosyn -
Industry News
JAN NAF Events
SPIP Award s
The Orbits perigee kick motor prior t o
berthing in the Endeavour' s cargo bay.
JAN NAF Calendar
CPIA's Technical /
Bibliographic
Inquiry Service
Recent CPIA Publication s
" Chemical Propulsion Mailing List, "
May 1992 .
CPIA Pub . 580, "1992 JANNAF Propulsion Meeting," Vols . I-III, Feb 1992 .
CPIA offers a variety of service s
to its subscribers, including responses t o
technical/bibliographic inquiries . Answers
are usually provided within three workin g
days, and take the form of telephoned ,
tele faxed, or written technical summaries .
Customers are provided with copies o f
JANNAF papers, excerpts from technica l
reports, bibliographies of the pertinent literature, names of recognized experts, propellant/ingredient data sheets, compute r
program tapes and instructions, and/or theoretical performance calculations . The CPIA
technical staff responds to approximately
250 inquiries per year from over 180 customer organizations . Subjects covered in
recent inquiries include the following :
"Selected Bibliographies, Handbooks ,
Manuals, and Reviews," May 1992 .
CPIA Pub . 580, "1992 JANNAF Propulsion Meeting (U), " Vol . IV, Feb 1992 .
CPA/1992 - Interim Issue B, Chemica l
Propulsion Abstracts, Jun 1992 .
CPIA Pub . 582, "1992 JANNAF Propulsion Systems Hazards Subcommittee Meet ing," Vol . 1, Apr 1992 .
CPIAIM7, "Liquid Rocket Static Tes t
Facilities Manual," 64 New and Revised
Units (for Seven Facilities) and Indexes,
Mar 1992 .
LS92-12 : Insensitive Explosives ; period
covered 1970-1992; 127 citations and abstracts .
CPIA Pub . 577, "DDESB Explosive s
Safety Seminar Abstracts (1959-1990), "
Nov 1991 .
LS92-13 : Unicharge, Single Incremental
Unit Propelling Charge; period covere d
1961-1992 ; 37 citations and abstracts .
CPIA Pub . 578, "1992 1992 JANNAF Propellant Development and Characterizatio n
Subcommittee Meeting," Apr 1992 .
LS92-14 : New Propellant Ingredients ;
period covered 1960-1992 ; 506 citation s
and abstracts .
• Heats of Combustion and Explosion
for WC 844 and WC 846 Gun Propellant s
(see also CPIA Publication 502, "Hig h
Strain Rate Testing of Gun Propellants" )
The Chemical Propulsion Informatio n
Agency (CPIA) is a DoD Information Analysi s
Center administratively managed by the Defens e
Technical Information Center (DTIC) . CPIA i s
responsible for the acquisition, compilation, analysis, and dissemination of information and dat a
relevant to chemical and electric propulsion technology . In addition, CPIA provides technical an d
administrative support to the Joint Army-Navy NASA-Air Force (JANNAF) Interagency Propulsion Committee . The purpose of JANNAF is to
solve propulsion problems, effect coordination o f
technical programs, and promote an exchange o f
technical information in the areas of missile, space ,
and gun propulsion technology . A fee commensurate with CPIA products and services is charged t o
subscribers, who must meet security and need-toknow requirements .
• Cutting Hazards Between Class 1 . 1
and Class 1 .3 Propellants (see also LS87 12, "Hazards Testing and Classification o f
Reduced-Hazard PEP Materials ")
• Blast Overpressure Hazards from a
Large Composite Propellant Motor Deflagration (see also LS90-09, "Large Rocke t
Motor Hazards" )
• Sensitivity Data for B/KNO3 (see als o
LS80-28, "Boron Pyrotechnic Compositions : Physical, Ballistic, and Sensitivity
Properties" )
• Burn Rate Modifiers for High Bur n
Rate Propellants (see also CPIA Publication 226, "Fast Burning Rate Solid Propellants")
• Al203 Drop-size Modification i n
Rocket Exhaust Flowfields (see also LS87 06, "Aluminum Oxide and Two-phas e
Flow in Rocket Exhausts" )
• Burn Rate Modification and Catalysi s
ofAN Propellants (see also LS 90-11, "Ammonium Nitrate Solid Propellants" ; CPIA
Publication 377, "Atnmonium Nitrat e
Specialist Session" ; CPTR 91-48, "Ammonium Nitrate and AN Propellants" )
• Use of Otto Fuel II as a Rocket Propellant
Catocene Synthesis Method (see also
LS86-24, "Catocene Solid Propellan t
Burning Rate Catalyst" ; CPIA/M3, "Soli d
Propellant Ingredients Manual", Unit 55 ,
Catocene )
• Computer Programs Available fro m
CPIA (see also CPIA Publication 551 ,
"Computational Fluid Dynamics Cod e
Validation/Calibration Workshop" )
• Computer Programs for Explosive
Blast Overpressure/Detonation Predictio n
Such as the Blake or Tiger Codes (see als o
LS91-01, "Computer Programs in Propulsion Technology" )
CPIA invites inquiries via telephone, fax, or letter . For further infonnation, contact Mr . Tracy Wilson (CPIA) at
(410) 992-7306 . §
2
The Bulletin is published bimonthly and i s
available free of charge to the propulsion community. Reproduction of Bulletin articles is permissible, with attribution .
Ms . Catherine McDermott
Ms . Lorri Pickett
(410) 992-730 7
Editor
Associate Editor
The Johns Hopkins University/CPI A
10630 Little Patuxent Parkway, Suite 20 2
Columbia, Maryland 21044-320 0
Operating under Contract N00014-91-C-000 1
CPIA Documents
Now Availabl e
Responding to a request by it s
JANNAF sponsors, CPIA is making copies of "Fundamental Studies Relatin g
to Systems Analysis of Solid Propellants," by Max Williams, Paul Blatz, and
Richard Schapery, available once again .
The publication, commonly known a s
"GALCIT 101," contains derivations o f
the basic analytical concepts relating t o
solid propellant grain structural integrity .
The document was the result of a progra m
by the Guggenheim Aeronautical Laboratory of the California Institute of Teclmol ogy under Thiokol Chemical Corporation
support . GALCIT 101 has become a
fundamental text for anyone involved in
grain structural analysis . The document
covers aspects of material characterization, viscoelastic theory, failure theory ,
and applications to various loading conditions . The cost is $15 for CPIA customers ,
and $45 for nonsubscribers .
Also available is CPIA Publication
No . 577, "Explosives Safety Semina r
Abstracts of the Department of Defens e
Explosives Safety Board ." This documents covers 24 seminars held during the
period from 1959 to 1990 and contain s
citations for 1,492 papers . A full bibliographic citation is given for each of the
papers, including indications of document availability . Subject, corporate
source, personal author, abstract number
to DTIC number, DTIC number cros s
reference, and contract number indexe s
are included . The price is $80 for CPI A
customers, and $120 for nonsubscribers .
The Bulletin Board
The following are various courses/events of which we have been apprised . We
welcome all such announcements, so that the propulsion community can b e
better served with timely information .
Topic
Dates
Location
10/4-7
New Orleans, LA
10/26-29
Laurel, M D
28th AIAA/ASME/SAE/ASEE Joint
Propulsion Conference
7/6-9
Nashville, TN
Introduction to Nuclear Propulsion :
Fundamentals and Overview (Course)
7/9-10
Nashville, T N
Electric Propulsion for Space
Systems (Course)
7/9-10
Nashville, T N
Propulsion Health Management and
Monitoring Systems (Course)
7/9-10
Nashville, TN
AIAA/NASA/NAS (National Academy
of Sciences) "World Space Congress "
(Conference)
8/28-9/5
Washington, DC
CMA :
Detonation Physics (Short Course)
10/11-16
Santa Fe, N M
DDESB:
25th DoD Explosives Safety Seminar
8/18-20
Anaheim, CA
Sponsor
ADPA:
International Symposium on Energeti c
Materials Technology
Ballistics Conference (Classified)
AIAA:
ADPA = American Defense Preparedness Association, (703) 522-1820.
AIAA = American Institute of Aeronautics and Astronautics, (202) 646-7400 .
CMA = Computational Mechanics Associates, (301) 821-6189 .
DDESB = Department of Defense Explosives Safety Board, (703) 325-8624 .
Other manuals that are availabl e
through CPIA are :
CPIA Pub . No . 214, "Handboo k
for the Engineering Structural Analysis of Solid Propellants "
CPIA Pub . No . 230, "JANNAF
Solid Propellant Structural Integrity
Handbook "
CPIA Pub . No. 394, "Hazards o f
Chemical Rockets and Propellants, "
Volumes I-III :
Vol . I "Safety, Health, and the
Environment"
Vol . II "Solid Propellants an d
Ingredients "
Vol . III "Liquid Propellants "
Address Changes
CPIA Pub . No . 469, "Principles
of Solid Propellant Development "
Please send changes, requests t o
be placed on the Bulletin mailing list ,
and similar information to :
CPIA Pub . No . 494, "Space Propulsion Hazards Analysis Manual, "
Volumes I and II .
Please contact Mrs . Dorothy Becke r
(CPIA) at (410) 992-7302 to order these
documents or for more information . §
3
The Johns Hopkins Universit y
Chemical Propulsion Information
Agency
Attn : Lorri Pickett
10630 Little Patuxent Pkwy ., Ste . 20 2
Columbia, MD 21044-320 0
Industry News
Test Firing s
Thiokol/Huntsvill e
Thiokol ' s Huntsville Division successfully conducted its first test firing on
April 15 of a new full-up, flight-weigh t
solid rocket motor designed for the Theater High Altitude Area Defense (THAAD)
System . The motor is being developed i n
support of the McDonnell Douglas, Mar tin Marietta, Raytheon, Rockwell and
Thiokol team's concept for the U .S . Army
Strategic Defense Command (USASDC)
The Airbreathing Propulsion Independent Research and Developmen t
Project at Hercules, Inc ., McGregor, Texa s
is conducting a series of five tests on a full scale ducted rocket ramjet . The test s
evaluated a new fuel and proved out som e
unique teclumology in the area of fuel-flo w
control . These tests should enhance Hercules' competitive position in new pro grams that are being funded by the U .S .
Army Missile Command and the Wright
Laboratories . §
According to McDonnell Douglas ,
all objectives for the test were met, including validation of the flight-weight
motor hardware design and motor ballistic performance . The team's approach
for the THAAD program is to use a low risk design, and proven off-the-shelf components and materials to meet progra m
technical, schedule, and cost objectives .
THAAD, an air defense missile
system with longer range than the Patriot ,
will provide the U .S . and its allies with a
wide-area defense capability to counter
"SCUD-like" ballistic missi l e capabilities . Congress has mandated early deployment of such a defense capability i n
the mid to late 1990's as part of the
Strategic Defense Initiative Organization's short-term objectives . USASDC
is expected to announce a winner of th e
current prime contractor competition fo r
the THAAD missile system demonstration/validation during the fourth quarte r
of FY 1992 . §
Thiokol's THAAD motor was test fired in April .
Hercules/McGregor
demonstration/validation phase contract
proposal . The test was conducted at
Redstone Arsenal .
SRM U
continued from page 1
predictions with actual motor perfonnance .
Posttest analysis of the motor will includ e
hardware inspection to confirm preliminary evaluation and structural integrity o f
the composite case and motor nozzle . Th e
motor is composed of only three segments, compared to seven segments with
the older steel-cased design .
The test was conducted under th e
supervision of the Air Force Space Systems Division; Col . Frank Stirling is th e
Air Force Titan IV program director .
Martin Marietta Astronautics Group, i n
Denver, Colorado, is the prime contracto r
for the Titan IV . §
4
Pleas e
Contribute
to the Bulletin
We need the input of our readers
on a variety of levels : articles, press
releases, notices, promotions, and photo ;, raphs.
You can call us at (410) 992-7307,
or Fax us at (410) 730-4969.
Thank you !
Catherine McDermott
Rockwell/Rocketdyne
The XLR-132 upper stage engine ,
developed by the Rocketdyne Division o f
Rockwell International, was test fired in
February 1992 for 500 seconds .
Rocketdyne's test site was the Advanced
Propulsion facility at the Santa Susan a
Field Laboratory near Canoga Park, California . Future testing will include simulated altitude testing at the Phillips Laboratory, Edwards AFB, California.
The restartable XLR-132 uses storable propellants and is intended for orbital
maneuvering and transfer applications .
Four feet high and about two feet i n
diameter, the XLR-132's thrust chamber
will operate at a pressure of 1,500 psia ,
which is 10 times higher than most pressure-fed storable space engines . Overall ,
the engine's performance characteristics
will be 10% higher than those of existing
engines with the same N2O4/MMH propellants . §
Rocketdyne's XLR-132 engine was test fired in February.
nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnn n
Thiokol/Ogde n
The Thiokol Corporation success fully demonstrated a new low-cost ,
120,000-pound solid rocket motor on April
22 that company officials say represent s
the next generation in expendable launc h
vehicle (ELV) solid propulsion . The tes t
firing was conducted at Thiokol's Ogde n
Strategic Operations 25 miles west o f
Brigham City, Utah .
formance technology, and high-safety
margins, in addition to reduced and simpli fled manufacturing processes . The new
motor may be deployed some time next
year . §
The Castor 120 motor produced
400,000 pounds of thrust with an action
time of approximately 78 seconds . Casto r
120 is a derivative of Thiokol's Peace keeper Stage I, and will be used by small ,
medium, and large ELV vendors . Th e
case is 93 inches in diameter, 350 inche s
long, and is constructed of a high-strength ,
graphite-epoxy structure with integra l
skirts . The propellant is a Class 1 .3 coinposite similar to the Castor motors manufactured by Thiokol at the Huntsville ,
Alabama facility .
Thiokol says the Castor 120 combines robust design approaches, high-per-
Thiokol's Castor 120 motor was test fired in April .
5
Joint Army-Navy-NASA-Air Force Events
1992 PDCS Meeting Held at Kennedy Space Cente r
The 1992 JANNAF Propellant Development and Characterization Subcommittee (PDCS) Meeting was held on 7- 9
April at the John F. Kennedy Space Center, Florida . Dr . James G . Carver of the
U .S . Army Missile Command, Redstone
Arsenal, Alabama, served as meetin g
chairman . Over 104 propellant development and characterization specialists at tended this meeting, which included 4 1
papers and various panel meetings . The
papers in the technical sessions covere d
liquid propellants, rheology, propellant
process engineering, surveillance, soli d
propellant chemistry, solid propellant ingredients, and micromeritics .
Papers for the liquid propellants
session included: the development of a
model for the formation of metal nitrat e
precipitation in nitrogen tetroxide oxidizer; the use of ion chromatography fo r
the quantitative analysis of sodium ion i n
Otto Fuel 11 ; the use of the atomic forc e
microscope to image corrosion on stainless steel surfaces at nanometer resolution under solution, and to measure th e
surface roughness ; and the application of
electrochemical techniques to the measurement of the corrosion rate of CRE S
304L in hydrazine .
In the rheology session, papers wer e
presented on : the effect ofNanocat superfine iron oxide on the stability of hydroxyl-terminatedpolybutadiene (HTPB)
polymer ; the characterization of a
crosslinked, double-base propellant b y
thermal, mechanical and electrical methods ; and the development of new glycidy l
azide polymer (GAP) quality assurance
tests .
The propellant process engineering session included : the developmen t
and characterization of a high-performance, reduced-signature HTPB binde r
propellant ; development of a new high performance, clean, solid propellant ; th e
effect of HMX content of RDX on low
vulnerability ammunition (LOVA) propellant processability ; the measurement
of temperature-dependent diffusion coefficients and evaporation rates of solvent s
and plasticizers in LOVA propellants ; th e
application of statistically based experimental design techniques to the continuous processing of LOVA propellants ; integrating nondestructive evaluation and
propellant processing ; the chemical basi s
for an inert propellant exhibiting good
bondline characteristics; the limited characterization of an inert propellant and live
Attendees of the PDCS Meeting view the .Sutui n V at Kennedy Space Center .
6
propellant bondline ; and the developmen t
of a bondline model that assesses the
effects of curative migration .
For the surveillance session, papers covered : a comparison study o f
Taliani stability data by the Military Standard method and new automated systems ;
the operation of a mobile propellant laboratory for gun propellant surveillance ;
characterization of the LICA- 12 couplin g
agent in LOVA propellant formulations ;
the thermogravimetry and differentia l
scanning calorimetry of cyclodextrin nitrate ; and the characterization o f
polyglycidyl nitrate (PGN) .
The solid propellant chemistry test
methods session presented papers on : th e
determination ofthe weight percent value
of each component in a LOVA propellan t
by gas chromatography and high-performance liquid chromatography methods ;
the quantitative extraction of gun propellant stabilizers using supercritical carbon
dioxide ; and the use of differential scanning calorimetry to evaluate double-base
propellant formulations that contain a
natural wax .
Papers in the solid propellant ingredients session included : the characterization of the initial specimens made under the GAP manufacturing and technology program ; the results of the roundrobin to evaluate two methods to determine the hydroxyl equivalent weight o f
GAP; the characterization ofmagnesiumteflon-viton pyrotechnic composition fo r
solid propellant ignition ; the identification of suitable candidate stabilizers for
GAP; the determination of the sensitivit y
of CL-20 and CL-20-based energetic compositions ; a chemical characterization an d
performance study of photodecompose d
hexanitrostilbene and hexanitrobibenzyl ;
the determination of the hydroxyl equiva lent weights of PGN prepolymers ; characterization of polypropylene and polyethylene ; the analysis of anions in ammoniuun perchlorate (AP) by ion chromatog raphy ; the use of inductively couple d
continued on page 7
S&EPS to Meet i n
Monterey
The JANNAF Safety & Environmental Protection Subcommittee (S&EPS) wil l
hold its annual meeting on 11-14 Augus t
1992 at the Naval Postgraduate School ,
Monterey, California. The Meeting Chairman is Mr . John A . E . Hannum of the
Office of the Chief of Naval Operations .
Mr. Donald di Campbell
Campbell Joins th e
JANNAF E C
On 24 February 1992, Mr . Donal d
J. Campbell was appointed by the U.S . Air
Force Logistics Command to serve on the
JANNAF Executive Committee (EC) . He
replaced Mr. William G . Beecroft wh o
retired from civil service . Mr . Campbel l
also serves as the EC liaison representative to the JANNAF Airbreathing Propulsion Subcommittee . He has been the
Director for the Aero Propulsion and Powe r
Directorate of the Wright Laboratory,
Wright-Patterson AFB, Ohio since February of 1990 .
Mr . Campbell began his Air Forc e
career as a test engineer in the Aer o
Propulsion Laboratory at Wright-Patterson
in 1960 . He has held various managerial
positions there over the years in the Joint
Engine Project Office, the Supersoni c
Persistence Major Thrust Office, the Tech nology Integration Division, and the National AeroSpace Plane Program Office .
In 1987, Mr . Campbell becam e
Deputy Director of the Aero Propulsio n
Laboratory . He was assigned as Deputy
Program Director for the Propulsion System Program Office in 1988 . Mr. Campbel l
earned a BS in Mechanical Engineering i n
1959 from Ohio Northern University, an d
a Masters in that same discipline fro m
Ohio State University in 1974 . §
This meeting will include technical sessions on environmental impact s
and protection ; propellant manufacturin g
and handling safety technology ; atmospheric hazards and modeling; toxic vapor detection instrumentation ; industrial
hygiene ; reclamation, disposal, and de militarization; and hazardous waste control .
The security level of the S&EP S
meeting is unclassified . Attendance i s
limited to U .S . citizens and authorize d
immigrant aliens who possess a need-toknow in the area of safety and environmental problems associated with chemical rocket or gun propulsion .
The preliminary program including registration information was distributed in June . To obtain the program
materials, or for further information, con tact Ms . Camille Hudson (CPIA) at (410 )
992-7305 . §
PDCS Meetin g
continued from page 6
plasma atomic emission spectrometry fo r
the analysis of impurities in AP ; development of neutral polymeric bonding agent s
for polar energetic propellants ; the mechanism of filler reinforcement of neutra l
bonding agents in energetic solid propellants ; and the development of a PC-base d
database to track explosive/propellant ingredients sources information .
In the micromeritics session, papers were presented on : a review o f
concepts in the de convolution of scattere d
light for particle size measurements ; a
comparison of optical microscope images, Microtrac, and Micromerograph par ticle size distribution data for high-bulk
7
Mr. Lester E. Tepe
RNTS Chairman
Mr . Lester E . Tepe has been th e
Chairman of the JANNAF Rocket Nozzl e
Technology Subcommittee (RNTS) sinc e
the fall of 1991 . He has been associated
with JANNAF since the 1970's as the Ai r
Force representative on the technical steering group for the RNTS .
Mr. Tepe is a program manager for
the Phillips Laboratory's Propulsion Di rectorate at Edwards AFB, California.
Since 1989, he has worked with the De sign Engineering Branch of the Engineer ing Applications Division . In this capacity, Mr . Tepe has overseen analytical studies for an engineering design evaluatio n
group that focuses on both solid and liqui d
propulsion components and structures .
A 1963 BS graduate of the Univer sity of Colorado, Mr . Tepe majored in
Aeronautical Engineering . That same
year he started his career at Edwards AFB ,
where he has worked ever since . §
density nitroguanidine ; and the development of a simple, efficient, particle-packing algorithm .
The proceedings of the 1992 PDC S
Meeting have been published as CPI A
Publication 578 . For further information ,
contact Ms . Melissa Paul (CPIA) at (410)
992-7303 . §
1992 PSHS Meeting Held at NSW C
The 1992 JANNAFPropulsion Systems Hazards Subcommittee (PSHS)
Meeting was held on 27-30 April at the
Naval Surface Warfare Center (NSWC /
WO), Silver Spring, Maryland . Dr .
Josephine Covino, Naval Air Warfare
Center (NAWC), China Lake, California ,
served as the meeting chairman . Tw o
hundred and eight propulsion syste m
safety scientists and engineers attende d
the meeting . Welcoming remarks were
given by Captain R. W . Moore, Deput y
Commander of NSWC/WO .
layed detonation of rocket motors and
explosives-filled ammunition from projectile impact . Another related session
covering effects ofinechanical propertie s
on impact response included papers on
effects of ammonium perchlorate and alu minwn on the impact response of compos ite materials, a new high-strain rate mechanical behavior test method, and a
nonlinear viscoelastic model for mechani cal response characterization .
The cookoff session included presentations on cookoff characteristics of a
The meeting offered 45 papers presented in eight technical sessions covering insensitive munitions technology;
electrostatic discharge (ESD) hazards;
bullet, fragment, and shaped-charge je t
(SCJ) impact hazards ; cookoff hazards;
hazards assessment and sensitivity testing; and other safety issues . A one and
one half day workshop on cookoff mechanisms and predictive capability was held ,
and the ESD Hazards Technology an d
Test Operations Hazards Panel also met .
Topics covered in the ESD sessions included ESD-induced ignition ; effects of pressure, additives, and damag e
on ESD properties ; and ESD safety in
rocket motor handling operations . Th e
session included a review of international
efforts by The Technical Cooperation
Program (TTCP) WAG-11 to develop a n
ESD hazard assessment protocol, and a
summary of a workshop on propellan t
ignition micromechanics sponsored by
the Army Research Office .
One session on impact hazards featured papers on mechanical response an d
shock sensitivity factors affecting the response of gun propellants to SCJ attack .
The session also included papers on SCJ
impact responses of both granular an d
liquid gun propellants .
Topics covered in the other impact
hazards session included small-scale impact testing for hazards assessment, bullet
and fragment impact testing of propellan t
and explosives samples, and bullet an d
fragment impact test methods development . A closely related session on detonation phenomena featured papers on de -
A workshop on cookoff mechanistic understanding and predictive capability was held in conjunction with the PSH S
Meeting . The workshop was co-chaire d
by Dr . Covino and Mr . Rodney Harris o f
NAWC/China Lake . The workshop featured discussions of computer models applicable to prediction of rocket motor
cookoff hazards and small-scale tests use d
to study thermal reactions of energeti c
materials . This workshop developed a
preliminary experimental/analytical tes t
plan to evaluate and advance current mod els by comparing the results of predictions from various models to experimental data from a small-scale cookoff test.
Two panel meetings were also held
during the annual meeting . The ESD Pane l
met to discuss preparation of a new report
covering recent advances in ESD technology . The Test Operations Hazards Pane l
met to review the AEDC large motor
explosive hazards analysis presented during the meeting, and to discuss deficiencies in diagnostic tests for the hazard s
classification of large rocket motors .
l
Dr. Josephine Covin o
high-density impulse composite propellant, fast cookoff testing of various mini mum smoke propellant/motor case material combinations, and a method for predicting cookoff hazards .
The session on safety and hazard s
assessment covered shipboard compartment fire and thermal hazards from propellant fires and warhead detonations ,
analytical methods for insensitive munitions threat-hazard assessments, and processing hazard properties of a new HChfree propellant . The session also included
a paper describing an analysis of explosive hazards during testing of large composite propellant rocket motors at th e
Arnold Engineering Development Center
(AEDC), Arnold AFB, Tennessee .
8
Proceedings of the 1992 PSHS
Meeting have been published as CPI A
Publication 582 . For ordering information, contact Mrs . Dorothy Becker (CPIA )
at (410) 992-7302 . §
1989-1990 Solid Propulsion Integrity Program Bondline Award s
Recipients of NASA's Solid Propulsion Integrity Program (SPIP) Award
for work performed from 1989-1990 o n
the Bondline Work Package 4 .0 were
announced 22 April 1992 . The winning
companies were the Science Applications International Corporation (SAIC) ,
Martin Marietta, Atlantic Research Cor poration (ARC), and ANATECH Re search Corporation . Each of the award
recipients are the SPIP Program managers at their respective companies . The
SPIP Award Committee consists o f
NASA, Army, Navy, and Air Force elec tors .
H. Graham, that received both an awar d
fee and a special research task award .
This group developed a process failure
modes and effects analysis model of reliability critical process steps, and manufactured the bondline analog motor with
its temperature, stress, and dielectric cure
sensors and optical fibers, which was de signed with SPIP protocols . Mr . Graham
is also involved in ARC programs dealin g
with Shuttle SRM flow visualization, insensitive munitions, the Strategic Defens e
Initiative, propulsion system hazards re duction, and chemical rocket demilitari zation .
Dr. Arthur V . Cooke
Dr. Barry L . Butler
earned a special research task award for th e
team's accomplishments in nondestructive
characterization o f propellant modulus an d
fracture mechanics . The Martin Marietta
group instituted the `blister peel' technique, which measures bondline fracture
toughness . Dr. Cooke also directs work on
bondline fracture toughness measuremen t
and modeling, ultrasonic nondestructiv e
evaluation of complex aerospace structures, and surface analysis and bondability
studies .
Dr. Robert S. Dunha m
The Atlantic Research Corporatio n
(ARC) assembled a team, led by Mr . Philli p
The team for SAIC, the prim e
SPIP contractor, was recognized for out standing proficiency in organizing th e
intercompany infrastructure and receive d
an award fee for their efforts . Headed b y
Dr . Barry L . Butler, the SAIC team coordinated a group of 15 solid rocket motor
(SRM) companies, helped troubleshoo t
inadequacies in SRM bondline reliability, enforced novel JANNAF bondline
testing standards and, in the process ,
saved money for the Government . Dr .
Butler also helps manage research an d
development, engineering, and structural
analysis process science and inspection
activities .
Martin Marietta Laboratories' effort, directed by Dr . Arthur V. Cooke,
ANATECH Research Corporation's team was managed by Dr . Robert S .
Dunham and was awarded a special research task of their choosing . This tea m
created abondline failure envelope, which
has been used to validate numerou s
bondline systems . The JANNAF Mechanical Behavior Subcommittee adapted
the ANATECH team's conical bond-intension test as a measuring standard . Dr .
Dunham also works on predictive methodology in structural mechanics, an d
helped develop a nonlinear, viscoelasti c
constitutive model that clarifies the stres s
relaxation and loading responses of propellant and bondline materials . §
Mr. Phillip H. Graham
9
INAF MEF T NG
r ?LFNDA R
Type
15-17 Jul
JANNAF Nondestructive Evaluation
Subcommittee Meeting
Conference/
Workshop s
Boeing Aerospace
Co., Seattle, WA
Unclassified/
Limite d
Past
Past
10-14 Aug
JANNAF Safety & Environmental
Protection Subcommittee Meetin g
Conference/
Workshops
NPS, Monterey,
CA
Unclassified/
Limited
Past
29 Ju l
19-22 Oct
29th JANNAF Combustion
Subcommittee Meetin g
Conference/
Workshop s
NASA/LaRC,
Hampton, VA
Confidential/
Limited
Past
28 Sep
16-20 Nov
JANNAF Structures & Mechanical
Behavior Subcommittee Meeting
Conference/
Workshop s
Kirtland AFB,
Albuquerque, N M
Unclassified/
Limited
Past
2 Nov
7-10 Dec
JANNAF Rocket Nozzle Technology
Subcommittee Meeting
Conference/
Workshops
Lockheed,
Sunnyvale, CA
Unclassified/
Limite d
30 Jun
24 Nov
JANNAF Exhaust Plume Technology
Subcommittee Meeting
Conference/
Workshops
Kirtland AFB,
Albuquerque, NM
Secret/
Limited
1 Sep
19 Jan
1992
Location
Sec. Class
Abstract/Pape r
Deadline
Meeting
1993
9-11 Feb
Attendance at JANNAF Conferences and Workshops is by invitation only .
MEETING CALENDAR SUBJECT TO CHANGE . FOR LATEST DETAILS, CONTACT CPIA at (410) 992-7303 .
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