é Excel File Edit View Insert Format Tools Data Window Help lab 100% Home LLayou
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é Excel File Edit View Insert Format Tools Data Window Help lab 100% Home LLayout . . Tables Charts illiSmartArti Formulas Dataul-Review abc Wrap Text "G Paste N18 2E-16 1E-13 stress VS strain -13 6E+13 SE 13 46 13 E-13 S volt-strain 6 strainstress 7-0.00011 0.000728 8.79E+12 9 0.00014 1.7S 13 10 0.00164 5.27E+13 E+13 110.00183 6.135+13 12 13 0 002 0,0015 0.004 0 0005 6-10 strain 00005 L000 15 strain directo 16 strainstress 17 0.00024 18 0.00016 8.79E+12 stress VS strain 19 0.0001 1.7SE+13 00.00015S 5.27E+13 21 0.000233 6.13E+13 6t-13 23 24 t-13 27 E+13 29 30 35 36 RKSheetl Sheet2Sheet3 + Normal View cera re incluExplanation / Answer
stress-strain diagram is supposed to plot the results from tensile tests in graphically identifying plot mechanical properties. As Stress states force per unit area that results from an applied load. Strain is physical deformation response of a material to stress.In linear portion of graph, if we release the specimen in the linear portion , the specimen will return to its original shape so no deformation will be taken place. the elasicity in the specimen region is modulous of elasticity.At the proportional limit, after the elastic limit we can have noticable permanent deformation takes place in the specimen.Yield stress is associated with the point on proportiona; limit and yield stress starts at 0.2% strain for most metals.if we stop the tensile test in a low specimen we can find the strain is 0.002. The region from proportional limit to permanent deformation is plastic region. The diameter and thickness gradually decreases in size and that point is know as ultimate tensile stress,UTS. This is the maximum tesnsile stress taken by a specimen. If we still continue the stress on specimen it ends with a fracture and can be found out by strain at fracture.
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