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664_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

# 664_Mechanics SolutionInstructors_Sol.Manual-Mechanics_Materials_7e.book_Gere_light.1

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658 CHAPTER 8 Applications of Plane Stress F OR PURE SHEAR , the stresses s 1 and s 2 must be equal in magnitude and opposite in sign (see, e.g., Fig. 7-11 in Section 7.3). s 1 s 2 O R Solve for F : F 3 p pr 2 ; pr t a pr 2 t F 2 p rt b Problem 8.3-5 A strain gage is installed in the longitudinal direction on the surface of an aluminum beverage can (see figure). The radius-to-thickness ratio of the can is 200. When the lid of the can is popped open, the strain changes by 0 170 10 6 . What was the internal pressure p in the can? (Assume E 10 10 6 psi

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