Recent content by raja24

Dear AlephZero, Thanks for the reply...You said that stress=E times strain, this is when the body is fixed. But if the body has free expansion i.e, its is allowed to expand and contract freely...then there will be no stresses in the body, it has only strains (all kinds). Then in this case...

We know that youngs modulus(E) is stress/strain. In case of free body thermal expansion, if the material is allowed to expand and contract freely, than there are no stresses in the body. The body has only strains. That means the stresses are zero in case of free expansion. So in this case...