Question

A normal mild steel specimen having 50 mm 2 cross section area and 10 cm long...

A normal mild steel specimen having 50 mm 2 cross section area and 10 cm long
gauge length was tested.

1. Draw the stress- strain diagram
2. calculate the final length of the bar compare when the specimen
unloaded from 400 MPa?
3. calculate the elastic and plastic deformation when the specimen
unloaded from 400 MPa
Proportionality limit Ultimate Load Failure Load
Stress (MPa) 320////// 500 /////////400
Strain 0.0018 //// 0.06///////// 0.12

Engineering   Mechanical-Engineering   
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