1. In mechanics and materials science, the component of stress that causes shape change (distortion) without volume change; the part of the stress tensor that deviates from the hydrostatic (mean) stress
The deviatoric stress tensor describes how material deforms under shear forces while maintaining constant volume.
O tensor de tensão desviadora descreve como o material se deforma sob forças de cisalhamento mantendo volume constante.
2. The difference between the total stress and the mean stress (hydrostatic pressure) at a point in a material
Engineers analyze deviatoric stress to predict material failure in plastic deformation.
Os engenheiros analisam a tensão desviadora para prever falha do material em deformação plástica.