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Unformatted text preview: exam 2, scheduled for Wednesday, 23 March (after spring break) Problem 1 Please do problem 7.2-6 in the textbook. Problem 2 Please do problem 7.3-6 in the textbook. Problem 3 Please do problem 7.5-1 in the textbook. Problem 4 Please do problem 7.4-16 in the textbook. Problem 5 (old exam problem) The state of plane stress shown below exists at a point in a material that has an elastic modulus E = 10,000, 000 psi, poisson’s ratio = 1/3, and shear modulus G = 3,750,000 psi. a. Assuming elastic behavior, determine the six values of strain at this point: ε x , ε y , ε z , γ xy , γ xz , and γ yz b. Determine the three principal stresses at this point. c. Determine the value of the maximum shear stress at this point. z y x τ xy = 3 ksi σ y = 3 ksi (compression) σ x = 5 ksi (tension)...
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- Fall '09
- Shear Stress, Cengage Learning, Shear modulus, old exam problem, J. M. Gere, B. J. Goodno