31. In the case of stress tensor , and changes in volume are generalized to the volume multiplied by the strain tensor. 32. This can be interpreted as the stress tensor of the composite material minus the stresses carried by the reinforcement at yielding. 33. The formulas can be simply checked by substituting the reinforcement ratios in the brittle material stress tensor and calculating the invariants. 34. Let \ boldsymbol { S } _ { ( m ) } be an objective stress tensor in the initial configuration. 35. The "'electromagnetic stress energy tensor "'contains the classical Maxwell stress tensor that governs the electromagnetic interactions. 36. The above is a condition that the constitutive laws relating the deformation gradient to the first or second Piola Kirchhoff stress tensor . 37. In the absence of such a coupling, the viscous stress tensor will have only two independent parameters and will be symmetric. 38. It follows from the Maxwell stress tensor of classical electrodynamics that the radiation pressure p is related to the internal energy density u: 39. One set of such invariants are the principal stresses of the stress tensor , which are just the eigenvalues of the stress tensor. 40. One set of such invariants are the principal stresses of the stress tensor, which are just the eigenvalues of the stress tensor .
