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Assignment 4

# Assignment 4 - Assignment 4(Ch 6 7 ZIQI WANG Started 9:50...

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ZIQI WANG Started: March 19, 2010 9:50 PM Questions: 14 1. (Points: 1) When the load is released on a specimen that has been experienced only elastic deformation, all of the strain is recovered immediately. a. True b. False Save Answer 2. (Points: 2) A cylindrical specimen of a hypothetical metal alloy is stressed in compression. If its original and final diameters are 24.773 and 24.950 mm, respectively, and its final length is 60.2 mm, calculate its original length (in mm) if the deformation is totally elastic. The elastic and shear moduli for this alloy are 106 GPa and 40.1 GPa, respectively. Use decimal notation, digits after decimal: 1 Answer

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Save Answer 3. (Points: 2) A cylindrical bar of metal having a diameter of 4.63 mm and a length of 689 mm is deformed elastically in tension with a force of 11,974 N. Given that the elastic modulus and Poisson's ratio of the metal are 181 GPa and 0.34, respectively, determine the change in diameter of the specimen (in mm). Indicate an increase in diameter with a positive number and a decrease with a
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Assignment 4 - Assignment 4(Ch 6 7 ZIQI WANG Started 9:50...

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