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1. A linear elastic isotropic material with Youngs modulus of 210 GPa and Poissons ratio of 0.3 is in a state of strain described by the infinitesimal strain matrix: 0.03 0.002 0 0 0 ε-10.002-0.015 0 0 (a) Find the principal strains and their directions. (b) Find the principal stresses and their directions. (c) Are the principal stresses and the principal strains aligned?I'm having trouble computing this by hand. Can someone please give a detailed explanation on how to solve. By eigensystem preferably

solution for strain E1= 0.03 E2 = -0.015 E3 = 0

engineering   Civil-Engineering   
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Answer #1

Answer : iven that 0.00 2 0.002 s E210 GPa n00 2 on 2 003 +Co.or)o 0 to.oty) 2.

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