ch07 - Chapter 7 Mechanical Properties Concept Check 7.1...

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Chapter 7 Mechanical Properties Concept Check 7.1 Questions: Of those metals listed in Table 7.3, (a) Which will experience the greatest percent reduction in area? Why? (b) Which is the strongest? Why? (c) Which is the stiffest? Why? Table 7.3 Tensile stress-strain data for several hypothetical metals to be used with Concept Checks 7.1 and 7.6 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. (b) Material D is the strongest because it has the highest yield and tensile strengths. (c) Material E is the stiffest because it has the highest elastic modulus.
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Concept Check 7.2 Question: Make a schematic plot showing the tensile engineering stress–strain behavior
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This note was uploaded on 05/19/2008 for the course MS 4032 taught by Professor Anony during the Spring '08 term at A.T. Still University.

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ch07 - Chapter 7 Mechanical Properties Concept Check 7.1...

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