003 Residual Stress And Permanent Deformation Elastoplastic Material Part2

In the previous video, we determined the yielding load of P to be 254kN. Also, the load of P can be increased up to 190.5kN before one element, AC, becomes plastic. For the same example:

1. If load P is increased to 160kN and is removed from the system, what is the stress in the rods after the load is removed?
2. If the load is increased to 220kN and removed, determine the permanent deformation of point C as well as residual stresses in each element.

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