A model for plastic hinges in tubular beams impact Original Research Article

A numerical model for the analysis of hollow beams impact has been developed. The moment–rotation relationship of a plastic hinge is used in a nonlinear, implicit code for transient analysis. The moment–rotation curve is obtained from a basic skeleton curve by adding a second one with irreversible characteristics. Both models may be selected from a library of functions. A hysteretic model may also be defined since the code allows treating a wide range of structural problems as well.