A polypropylene has the following tensile creep compliance measured at 40 °C: D(t) = 1.2 x tº.1 GPa-1 where t is expressed in seconds. It is subjected to the following tensile stress sequence at 40 °C. Find the tensile strain at 3200 sec. Stress (MPa) 1.5 1.0 0.5 1000 2000 3000 Time (s)

A polypropylene has the following tensile creep compliance measured at 40 °C: D(t) = 1.2 x tº.1 GPa-1 where t is expressed in seconds. It is subjected to the following tensile stress sequence at 40 °C. Find the tensile strain at 3200 sec. Stress (MPa) 1.5 1.0 0.5 1000 2000 3000 Time (s)

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.6.7P: A wine of length L = 4 ft and diameter d = 0.125 in. is stretched by tensile forces P = 600 lb. The...

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Thermal Properties of Materials

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Question

A polypropylene has the following tensile creep compliance measured at 40
°C:
D(t) = 1.2 x t0.1 GPa-1
where t is expressed in seconds. It is subjected to the following tensile
stress sequence at 40 °C. Find the tensile strain at 3200 sec.
Stress (MPa)
1.5
1.0
0.5
1000
2000 3000
Time (s)

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