Good Morning All,
I remember reading a few times that, once the Youngs modulus relaxation is measured in a uni axial test the results could be converted to Shear modulus using the relationship
G = E / 2 (1 + ni).
This would help me in a problem I have at the moment but I have a couple of doubts.
First of all it seems to me the relationship is valid only in linear elasticity, following its derivation.
Are then the statements about the relation validity based on experience, i.e. the relation work fine in spite of not being theoreticvally the most rigorous?