The deformation response of a certain polymer canbe described by the Voigt model. If E = 400 MPa and η = 2 x 1012 MPa-s, compute the relaxation time. Compute e(t)for times to 5T when the steady stress is 10 MPa. How muchcreep strain takes place when t = T and when t = ∞?

The deformation response of a certain polymer canbe described by the Voigt model. If E = 400 MPa and η = 2 x 1012 MPa-s, compute the relaxation time. Compute e(t)for times to 5T when the steady stress is 10 MPa. How muchcreep strain takes place when t = T and when t = ∞?

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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Question

The deformation response of a certain polymer can
be described by the Voigt model. If E = 400 MPa and η = 2 x 10¹² MPa-s, compute the relaxation time. Compute e(t)
for times to 5T when the steady stress is 10 MPa. How much
creep strain takes place when t = T and when t = ∞?

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