A new model for elasto-plastic analysis of concrete

For the plane stress problem and the spatial problem of the elasto-plastic analysis of concrete, a new truss element model is presented by using the deformations under the equivalent external forces are the same. Some examples is given, which is in good agreement with the calculation results of the solid element.

(Note: The model in this article is the world's top concrete model, much better than the concrete model provided by Ansys itself.)