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구조역하및 실험 Problem Solution – Homework #6 6.1 Solution : The stress-strain relation can be expressed as Where average stress is Dilatation for small strain, Bulk modulus, For the state of plane stress, we have The strain energy density associated with the volume dilatation is given by, The total strain energy density for plane stress is

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The strain energy associated with distortional deformation is obtained as We can rewrite this equation in
6.2 Solution : The stresses caused by the internal pressure is where x and y are orthogonal axes in the directions tangential to the surface at the point of interest, and z is perpendicular to the surface at the same point. There are only normal

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## This note was uploaded on 03/25/2012 for the course AEROSPACE 301 taught by Professor Pfchang during the Spring '12 term at Shandong University.

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