HW9+Solutions

HW9+Solutions - HW 9 Name _ PART A. Definitions and...

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HW 9 Name ________________________________ PART A. Definitions and Nomenclature 1. Engineering stress is stress computed on the load divided by the initial cross sectional area. 2. The temperature at which a reduction in the impact energy to cause fracture occurs is the ductile to brittle transition temperature . 3. Creep is the process in which a material elongates with time under an applied load. 4. The parameter that characterizes the stress and strain at a given location ahead of a crack is referred to as the K I c, stress intensity factor . 5. Reduction in stress that occurs when a component is subjected to a constant value of strain is referred to as stress relaxation . 6. The phenomenon known as strain hardening or work hardening is the result of dislocation-dislocation interactions in metallic crystals. 7. On an engineering stress-strain curve, the onset of plastic instability occurs at the ultimate tensile stress . 8.
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HW9+Solutions - HW 9 Name _ PART A. Definitions and...

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