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ConceptCheck6 - 145 Concept Check 6.1 Question Ans wer Cite...

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145 Concept Check 6.1 Question: Cite the primary differences between elastic, anelastic, and plastic deformation behaviors. Answer: Elastic deformation is time-independent and nonpermanent, anelastic deformation is time-dependent and nonpermanent, while plastic deformation is permanent.
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150 Concept Check 6.2 Questions: Of those metals listed in Table 6.3, (a) Which will experience the greatest percent reduction in area? Why? (b) Which is the strongest? Why? (c) Which is the stiffest? Why? Table 6.3 Tensile stress-strain data for several hypothetical metals to be used with Concept Checks 6.2 and 6.4 Yield Tensile Strain Fracture Elastic Strength Strength at Strength Modulus Material (MPa) (MPa) Fracture (MPa) (GPa) A 310 340 0.23 265 210 B 100 120 0.40 105 150 C 415 550 0.15 500 310 D 700 850 0.14 720 210 E Fractures before yielding 650 350 Answers: (a) Material B will experience the greatest percent area reduction since it has the highest strain at fracture, and, therefore is most ductile.
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