Schmid's Law, named after the German engineer Erich Schmid, is a fundamental principle in the field of materials science and solid mechanics that describes the relationship between the applied stress and the resulting slip in crystalline materials during plastic deformation. It is particularly relevant to the study of single crystal materials. According to Schmid's Law, the critical shear stress required to initiate slip (plastic deformation) in a crystal is directly related to the applied normal stress.
Articles by others on the same topic
The ideal activation criterion compares resolved shear stress with a critical resolved shear stress. Non-glide stresses, notably in some body-centred cubic crystals, can modify this ideal criterion.