Tensile Strength of Fishing Line By Stan Ottolini

Tensile Strength of Fishing Line By: Stan Ottolini Gabriel Halpin Patrick La. Bruzzo Engr. 45, December 2009

Our Group (from left): Patrick La. Bruzzo, Stan Ottolini, and Gabriel Halpin

Objective 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 The break point of the 12 lb test was at 13. 3 lbs. Line diameter: 0. 0125 in Modulus of Elasticity (E) : 561709 100, 000 Stress (psi) 80, 000 60, 000 40, 000 20, 000 0 0. 05 0. 10 0. 15 Strain (in/in) 0. 20 0. 25 0. 30

14 Lb Test Fishing Line 90, 000 Sport Fisher: Eagle Claw Made in Brazil 80, 000 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 Stress vs. Strain of 14 lb Test 50, 000 40, 000 30, 000 20, 000 10, 000 0 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 Zebco: Omniflex Made in China 90, 000 The break point of the 15 lb test was at 14. 33 lbs. Line Diameter: 0. 015 in Modulus of Elasticity (E): 429428 70, 000 80, 000 Stress (psi) 60, 000 50, 000 40, 000 30, 000 20, 000 10, 000 0 0. 05 0. 10 Strain (in/in) 0. 15 0. 20

25 Lb Test Fishing Line 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 Stress vs. Strain of 25 lb Test 60, 000 40, 000 20, 000 0 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. 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 100, 000 60, 000 40, 000 20, 000 0 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 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 30 lb Trilene and 12 lb Stren had a greater tested strength then they were rated for. The 14 lb Eagle Claw broke almost 14% its rated strength. The other two, the Zebco Omniflex 15 lb, and the Trilene Super Strong 25 lb, 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 Tackle. Tour. 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/bdemat 2. 29. html www. engr. utk. edu/mse/pages/Textiles/Nylon%20 fibers. html