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Implementation of Lemaitre Damage model with VUMAT subroutine

The Lemaitre damage model is now widely used to deal with coupled damage analyses for various mechanical applications. In this package, Firstly, we try to introduce the Lemaitre damage model including damage mechanics and formulation of the Lemaitre damage model. Then, writing the Lemaitre subroutine is reached step by sep. To do this job, the flowchart of the subroutine, Writing the subroutine line by line, implementation of the subroutine in one element and verification is done. In the last chapter, we implement this subroutine in a complex problem, the upsetting process. . Watch Demo