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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
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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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
Transcribed Image Text: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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