I am using different kinds of materials when making simulations on a beam. I use steel as my datum material. Then I fill in the following data in the material properties dialog box.
Material 1 - STEEL1
Tensile Yield Stress: 460 MPa
Tensile Ultimate Stress: 670 MPa
Material 2 - STEEL2
Tensile Yield Stress: 550 MPa
Tensile Ultimate Stress: 760 MPa
When I am doing the exact same simulation with each of the materials I still get the exact same stresses. How can that be?