628_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

628_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

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622 CHAPTER 7 Analysis of Stress and Strain Plane Strain When solving the problems for Section 7.7, consider only the in-plane strains (the strains in the xy plane) unless stated otherwise. Use the transformation equations of plane strain except when Mohr’s circle is specified (Problems 7.7-23 through 7.7-28). Problem 7.7-1 A thin rectangular plate in is subjected to stresses s x and s y , as shown in part (a) of the figure on the next page. The width and height of the plate are and , respectively. Measurements show that the normal strains in the and directions are and , respectively. With reference to part (b) of the figure, which shows a two-dimensional view of the plate, determine the following quantities: (a) the increase in the length of diagonal ; (b) the change in the angle between diagonal and the axis; and (c) the change in the angle between diagonal and
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