A material has a linear elastic perfectly plastic stress-strain.  A cylindrical specimen of that material having an initial length of 35 mm and a tadius of 7 mm is pulled until it elongates 0.8mm. a.  Calculate the stain and the corresponding stress at that elongation value. b.  Afterward, the specimen is released to zero stress level, how does the final length of the specimen compare with its original length?  How much plastic deformation remains if it exists?

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Thermal Properties of Materials

In mechanical engineering, the thermal property is represented as the physical quantity that is relevant to the application of heat. The thermal properties are evaluated by variations in any specific material due to low heat or high heat. The quantities that influence the thermal property of the materials are mass, density, temperature, and many others.