公开(公告)号：US20200210542A1

公开(公告)日：2020-07-02

申请号：US16235424

申请日：2018-12-28

Applicant: Dassault Systemes Simulia Corp.

Inventor： Dan Cojocaru ,  James Christopher Wohlever ,  Tod Olan Dalrymple

IPC: G06F17/50 ,  G06F3/0484

Abstract: A computer simulation system is configured to display to a user a graphical user interface to allow the user to import experimental test data, identify a material model that includes one or more parameters to be calibrated during a material model calibration process, perform an iterative optimization process to calibrate the material model, the iterative optimization process uses an optimization algorithm that enforces a constraint based on Drucker's stability criterion across one or more predetermined strain ranges to generate a calibrated material model, assign the calibrated material model to a component of a simulation model based on input from the user, a real-world equivalent of the component being made of the physical material, and perform a simulation that includes the component, the simulation using the stable material model and stable set of parameters to simulate response of the real-world equivalent during the simulation.