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D1Second Exam(F06)

# D1Second Exam(F06) - The Hashemite University Faculty of...

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Machine Design I Fall 2006 Instructors: Prof. Mousa Mohsen & Dr. Ala Hijazi The Hashemite University Faculty of Engineering Mechanical Engineering Department Second Exam Name: _____________________ Part I – Closed Book Please Read Questions Carefully – Good Luck! (16 points) 1. For the flowing statements circle the correct answer. Two identical bars, one is made of aluminum and the other is made of steel. The two bars are subjected to the same axial tensile force. The two bars will have the same strain energy. T F Two identical columns, one is made of aluminum and the other is made of steel. The two columns have the same slenderness ratio. T F The maximum distortion energy theory gives more conservative predictions of the factor of safety than the maximum shear stress theory. T F For a material subjected to biaxial stress where σ y = σ x , both the maximum shear stress theory and the distortion energy theory will predict the same critical stress. T F The fatigue stress concentration factor (K

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• Spring '10
• علاءحجازي
• Force, maximum shear stress, distortion energy theory, Hashemite University Faculty of Engineering Mechanical Engineering Department, distortion energy

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D1Second Exam(F06) - The Hashemite University Faculty of...

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