x Browser Checker infruni S Callister, Materials science and Engineering: An Int

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x Browser Checker infruni S Callister, Materials science and Engineering: An Introduction, 9th Edition Assignment ment Supplemental Problem: Maintaining plastic deformation For a bronze alloy the stress at which plastic deformation begins is 267 MPa and the modulus of elasticity is 112 GPa. (a) what is the maximum load that may be applied to a specimen having a cross-sectional area of 328 mm2 without plastic deformation? (b) If the original specimen length is 145 mm, what is the maximum length to which it may be stretched without causing plastic deformation? (b) click if you would like to show work for this question: d en shous work By accessing this Question Assistance, you will learn while you eam points based on the Point Potential policy set by your instructor. Question Attempts: 0 of 3 used Earn Maximum points avail answer this question comes attempts or less.

Explanation / Answer

We know

stress = load /Area

load = sress*area

stress givet that maximum can be 267Mpa = 267N/mm2   Area= 328 mm2

load= 267*328= 87576 N

B)

we know change in length = F*L/(AE)

But F/A= Stress= 267 MPa

E= 112Gpa = 112000 Mpa

L= 145 mm

change in length = 267*145/112000 = 0.3457 mm

the length which may it stretch =145+0.3457 = 145.3457 mm

thanks

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