Maximum distortion energy theory

Maximum Distortion Energy Theory, also known as the von Mises criterion, predicts when a material will yield or ultimately fail due to complex stresses. It suggests that failure occurs when the energy stored in the material's distorted shape reaches a critical level. Essentially, it compares the combined effects of different types of stresses (like pulling, pushing, or twisting) to a material's capacity to withstand deformation. If the combined effect exceeds the material's limit, failure is likely. This theory helps engineers design safer, more reliable structures by ensuring the stresses stay within safe limits.