The attached figure shows, for a gray cast iron, the tensile engineering stress-strain curve in the elastic region. Determine (a) the tangent modulus at 25 MPa and (b) the secant modulus taken to 35 MPa.

The attached figure shows, for a gray cast iron, the tensile engineering stress-strain curve in the elastic region. Determine (a) the tangent modulus at 25 MPa and (b) the secant modulus taken to 35 MPa.

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

Problem 4
The attached figure shows, for a gray cast iron, the
tensile engineering stress-strain curve in the elastic
region. Determine (a) the tangent modulus at 25 MPa
and (b) the secant modulus taken to 35 MPa.
Stress (MPa)
60
50
40
30
20
10
0.0002
0.0004
Strain
0.0006
T
8
6
★
2
0.0008
Stress (10³ psi)

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