By: Stan Ottolini
Gabriel Halpin
Patrick LaBruzzo
Engr. 45, December 2009
Our Group (from left): Patrick LaBruzzo, Stan Ottolini, and Gabriel Halpin
The purpose of this project was to test if the line would
break at the manufactured specified rating and to measure
and plot the stress vs. strain curve for the fishing line. The
type of fishing line that we used was nylon.
Fishing Line Brands:
Du Pont: Stren
Sport Fisher: Eagle Claw
Zebco: Omniflex
Trilene: XL Super Strong
Trilene: XT Extra Tough
12 Lb Test Fishing Line
Du Pont: Stren
Made in U.S.A.
Stress vs. Strain of 12 lb Test
120,000
100,000
The break point of the 12 lb test
was at 13.3 lbs.
Line diameter: 0.0125 in
Modulus of Elasticity (E) : 561709
Stress (psi)
80,000
60,000
40,000
20,000
0
0.00
0.05
0.10
0.15
Strain (in/in)
0.20
0.25
0.30
14 Lb Test Fishing Line
Stress vs. Strain of 14 lb Test
90,000
Sport Fisher: Eagle Claw
Made in Brazil
70,000
60,000
Stress (psi)
The break point of the 14 lb test
was at 12.13 lbs.
Line diameter: 0.0135 in.
Modulus of Elasticity (E): 451959
80,000
50,000
40,000
30,000
20,000
10,000
0
0.00
0.05
0.10
0.15
Strain (in/in)
0.20
0.25
15 Lb Test Fishing Line
Stress vs. Strain of 15 lb Test
90,000
Zebco: Omniflex
Made in China
70,000
60,000
Stress (psi)
The break point of the 15 lb test was
at 14.33 lbs.
Line Diameter: 0.015 in
Modulus of Elasticity (E): 429428
80,000
50,000
40,000
30,000
20,000
10,000
0
0.00
0.05
0.10
Strain (in/in)
0.15
0.20
25 Lb Test Fishing Line
Stress vs. Strain of 25 lb Test
120,000
Trilene: XL Super Strong
Made in U.S.A.
100,000
80,000
Stress (psi)
The break point of the 25 lb test was
at 24.26 lbs.
Line Diameter: 0.018 in
Modulus of Elasticity (E): 285522
60,000
40,000
20,000
0
0.00
0.05
0.10
0.15
Strain (in/in)
0.20
0.25
30 Lb Test Fishing Line
Stress vs. Strain of 30 lb Test
120,000
Trilene: XT Extra Tough
Made in U.S.A.
100,000
80,000
Stress (psi)
The break point of the 30 lb test was
at 33.08 lbs.
Line Diameter: 0.021 in
Modulus of Elasticity (E) : 231930
60,000
40,000
20,000
0
0.00
0.05
0.10
0.15
Strain (in/in)
0.20
0.25
120000
Stress vs. Strain for all Tests
100000
Stress (psi)
80000
12 lb test
60000
14 lb test
40000
15 lb test
25 lb test
20000
30 lb test
0
0.000
0.050
0.100
0.150
Strain (in/in)
0.200
0.250
Breaking Points of the fishing lines
Tested strength as a percent of rated strength
 Are test showed that only the 30lb
Trilene and 12lb Stren had a greater
tested strength then they were rated
for.
 The 14lb Eagle Claw broke almost
14% its rated strength.
 The other two, the Zebco Omniflex
15lb, and the Trilene Super Strong
25lb, both broke relatively close to
their rated strengths, within 5%.
Heavy Test Fishing Line
Setup
Stan and Gabe Preparing
50 lb and 100 lb Test fishing
line while Patrick organizes
his Data Sheet.
50 lb and 100 lb test was not
included in this presentation.
taken from TackleTour.com
Works Cited
 Fishing line comparison graphs came from www.tackletour.com
 Machinist-materials.com
 Nylonhistory.org/index.html
 www.abc-of-fishing.net/fishing-lines/types.asp
 www.machinedesign.com/BD/materials/bdemat2/bdemat2.29.html
 www.engr.utk.edu/mse/pages/Textiles/Nylon%20fibers.html