Q1.9 A material has a stress-strain relationship that can be approximated bythe equationε = 0.3 x 10Figure P1.11where the stress is in psi. Find the secant modulus and the tangent modulusfor the stress level of 50,000 psi.1.10 On a graph, show the stress-strain relationship under loading andunloading for the following two materials:a. nonlinear elastic materialb. elastoplastic material with strain hardeningIb161.11 The rectangular block shown in Figure P1.11 is subjected to tensionwithin the elastic range. The increase in the length of a is 2 x 10-³in. andthe contraction of b is 3.25 × 10-in. If the original lengths of a and b were2 in. and 1 in., respectively, what is Poisson's ratio for the material of thespecimen?Ox 0³O

Q 1.9 A material has a stress-strain relationship that can be approximated by the equation E = 0.3 x 10 16 x 0³ where the stress is in psi. Find the secant modulus and the tangent modulus for the stress level of 50,000 psi.

Q 1.9 A material has a stress-strain relationship that can be approximated by the equation E = 0.3 x 10 16 x 0³ where the stress is in psi. Find the secant modulus and the tangent modulus for the stress level of 50,000 psi.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Question

Q
1.9 A material has a stress-strain relationship that can be approximated by
the equation
ε = 0.3 x 10
Figure P1.11
where the stress is in psi. Find the secant modulus and the tangent modulus
for the stress level of 50,000 psi.
1.10 On a graph, show the stress-strain relationship under loading and
unloading for the following two materials:
a. nonlinear elastic material
b. elastoplastic material with strain hardening
Ib
16
1.11 The rectangular block shown in Figure P1.11 is subjected to tension
within the elastic range. The increase in the length of a is 2 x 10-³in. and
the contraction of b is 3.25 × 10-in. If the original lengths of a and b were
2 in. and 1 in., respectively, what is Poisson's ratio for the material of the
specimen?
O
x 0³
O

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