H16 Hybrid III Abdomen Foam
1. MATERIAL MORPHOLOGY
Name
Code
Structure
Color
Average Density
:
:
:
:
:
Hybrid III Abdomen Foam
H16
Open cell foam
White
0.1387 (g/cm3)
H16 is an homogeneous and isotropic foam (Figures H16-4,5,7)
2. EXPERIMENTAL DATA

Compression : Fig. H16-1, Fig. H17-2, ISO delivered data
 Tension
: Fig. H17-6, Fig. H17-8 , ISO delivered data
3. SUMMARY of MECHANICAL BEHAVIOR
3.1.
COMPRESSION ( Quasi-Static and Dynamic)
3.1.1. Stain Rate dependence
The mechanical properties of H16 in compression, exhibit small strain rate dependence.
Experimental results of quasi-Static and Drop Weight Method are given in Figure H16-1 and
Figure H16-2 respectively.
3.1.2. Sensitivity to Loading History
The mechanical properties of H16 are stable independent from the loading history (Figure H163). The material H16 is homogeneous (Figure H16-4) and isotropic (Figure H16-5).
3.2.
TENSION ( Quasi-Static and Dynamic)
3.2.1. Stain Rate dependence
The behavior of H16 in tension is not stain rate dependent (Figure H16-6).
3.2.2. Sensitivity to Loading History
The material H16 is homogeneous and its mechanical properties are independent from the
loading history (Figure H16-7)
H 16 Abdom en Foam
Q u a s i - s ta tic C o m p re s s io n T e s ts
T h e s tra in ra te e ffe c t
1 .4
0 .1 0
1 .2
0 .0 8
S tress MP a
Stress MPa
1 .0
0 .0 6
0 .0 4
0 .8
0 .0 2
0 .6
0 .0 0
0
0 .3
0 .6
0 .9
s tr a in
0 .4
0 .2 3 1 5
0 .0 4 6 3
0 .0 2 3 1
0 .2
0 .0 0 4 6
0 .0 0 2 3
0 .0
0
0 .2
0 .4
0 .6
0 .8
1
s tra in
Figure H16-1
Cyclic compression experiments at five different strain rates indicate that there is a
small strain rate effect of the behavior of H16 in compression

H16 Abdomen Foam
Comparison between Quasi-Static and Dynamic
Compression
The Strain Rate Effect
0.2
0.18
C 61.6s-1
C 36.5s-1
C 50.6s-1
0.2315
0.0463
0.0231
0.0046
0.0023
0.16
stress (MPa)
0.14
0.12
0.1
0.08
0.06
0.04
0.02
0
0
0.2
0.4
0.6
0.8
1
strain
Figure H16-2
Comparison between Quasi-Static and Dynamic Compression

H16 Abdomen Foam
Quasi-Static Cyclic Compression
Setting of the Material
Strain Rate 0.033 s-1
0.60
0.40
Stress (MPa)
1st cycle
5th cycle
0.20
0.00
0.0
0.2
0.4
0.6
0.8
1.0
strain
Figure H16-3
Cyclic compression experiments up to 0.9 stain on the same sample demonstrate
that the material is not affected by the loading history.

H 16 Ab d o m en F o am
Q u a s i-S ta tic C y c lic C o m p re s s io n
H o m o g e n e ity a n d D ire c tio n a lity
S t r a in Ra t e 0 .0 3 s -1
0 .5 0
0 .4 0
s p e c im e n 2
Stress (MPa)
s p e c im e n 1
0 .3 0
0 .2 0
0 .1 0
0 .0 0
0 .0
0 .2
0 .4
0 .6
0 .8
1 .0
s tra in
Figure H16-4
Cyclic compression experiments up to 0.9 stain on two different samples cut from
different sites of the delivered sample demonstrate that the material is
homogeneous with the same mechanical properties in compression.

H 16 Abdom en Foam
Q u a s i-S ta tic C y c lic C o m p re s s io n
E ffe c t o f D ire c tio n o f L o a d in g
S tr a i n R a te 0 . 0 2 s - 1
0.800
0.700
x -d ire c tio n
y -d ire c tio n
z -d ire c tio n
0.600
S tress (MP a)
0.500
0.400
z
0.300
y
0.200
x
0.100
0.000
0.0
0.2
0.4
0.6
0.8
1.0
s tra in
Figure H16-5
Cyclic compression experiments to the same cubic sample demonstrate that the
material is isotropic

H16 Abdomen Foam
Quasi-Static Cyclic Tensions
Strain Rate Effect
0.030
0.0016
0.0033
0.025
0.0055
0.0163
Stress (MPa)
0.020
0.0276
0.0327
0.015
0.0551
0.010
0.005
0.000
0.00
0.05
0.10
0.15
0.20
0.25
strain
Figure H16-6
Cyclic tension experiment indicate that there is a very small strain rate effect of the
behavior of H16 in tension

H16 Abdomen Foam
Quasi-Static Cyclic Tension
Effect of loading direction and history
0.030
y-direction (2nd run)
0.025
z-direction (1nd run)
z-direction (2nd run)
Stress (MPa)
0.020
0.015
0.010
0.005
0.000
0.00
0.05
0.10
0.15
0.20
0.25
strain
Figure H16-5
Cyclic tension experiments on two different specimens cut from different sites of
the delivered sample demonstrate that the material is homogeneous isotropic and
unaffected by the loading history.
