A new model for elasto-plastic analysis of steel

This is a beautiful, unparalleled elastoplastic model for plastic materials.

Based on the equivalent stress and deformation of regular hexahedron microelement and truss element, a new truss element model is presented. It can be used to solve the elasto-plastic plane stress problem and spatial problem of steel. Through a large number of examples, the new element model can be found to have good accuracy.