Thanks for your prompt response...I am applying the displacement such that the material is deforming plastically as well. So total strain will compose of elastic as well as plastic. For that particular scenario can I compute the Young's Modulus by the process told by you i.e. applying displacement such that the body remains in the elastic region or is there is another way to compute Young's Modulus in such a situation (suppose crushing) please tell me. nThanks for your help.n