Question

Determine stress invariants and the principal stress values for the state of stress. compare the stress invariants for the stress tensor in a coordinate system aligned with principal axis with the one obtained before. 2 marks. σ =   6 −3 0 −3 6 0 0 0 8 

Answer 1

Stresses. Stress at a point. Stress Tensor. Equations of Equilibrium. Different states of stress ..... called as principal stresses, are obtained. 2 xx yy xx yy. 2 max,min xy. 2. 2 σ + σ σ −σ. ⎛.