Draw a hypothetical stress-strain curve and mention the yield stress, ultimate tensile strength, elastic and plastic zones. Additionally, define the elasticity modulus and toughness of a material from diagram.
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- Start the curve at the origin (0,0) and draw a linear portion that represents the elastic region. Show more…
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Sri K.
'1) Draw (using a normal graph paper) a conventional stress-strain diagram for ANY metallic material (e.g. steel, aluminium, copper, brass, iron, tungsten) The diagram should be as accurate as possible using a suitable scale (e.g. 1cm: 10 N): 2) Calculate the Modulus of Elasticity, Modulus of Toughness and Modulus of Resilience for the material from the stress-strain diagram. Show your calculations in detail on a separate A4 piece of paper.'
For the stress-strain curve on the graph below, estimate the strain hardening exponent, calculate the modulus of resilience, and tensile toughness for this material. Show your work and explain your method. Note: The inset graph is the portion of the large graph at low strain. Compare the modulus of resilience calculated from the graph with the common approximation that σY = EεY.
Supreeta N.
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