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.

公开(公告)号：US20150178424A1

公开(公告)日：2015-06-25

申请号：US14138706

申请日：2013-12-23

Applicant: Dassault Systemes Simulia Corp.

Inventor： Harrington Hunter Harkness ,  Dan Cojocaru ,  Daniel Alexander Reece

IPC: G06F17/50

CPC classification number: G06F17/5018

Abstract: The present invention relates to a method and system for performing a finite element simulation. Embodiments of the present invention determine accurate contact simulations. A method according to the principles of the present invention begins by obtaining a first finite element model and a first computer aided design (CAD) model that the first finite element model represents. Next, a finite element simulation is performed using at least the first finite element model and the first CAD model. According to an embodiment of the present invention, performing the finite element simulation comprises determining one or more variations between the first finite element model and the first CAD model.

Abstract translation: 本发明涉及一种用于执行有限元模拟的方法和系统。 本发明的实施例确定准确的接触模拟。 根据本发明的原理的方法开始于获得第一有限元模型和第一有限元模型表示的第一计算机辅助设计（CAD）模型。 接下来，使用至少第一有限元模型和第一CAD模型来执行有限元模拟。 根据本发明的实施例，执行有限元模拟包括确定第一有限元模型和第一CAD模型之间的一个或多个变化。

公开(公告)号：US09965574B2

公开(公告)日：2018-05-08

申请号：US14138706

申请日：2013-12-23

Applicant: Dassault Systemes Simulia Corp.

Inventor： Harrington Hunter Harkness ,  Dan Cojocaru ,  Daniel Alexander Reece

IPC: G06F17/50

CPC classification number: G06F17/5018

Abstract: The present invention relates to a method and system for performing a finite element simulation. Embodiments of the present invention determine accurate contact simulations. A method according to the principles of the present invention begins by obtaining a first finite element model and a first computer aided design (CAD) model that the first finite element model represents. Next, a finite element simulation is performed using at least the first finite element model and the first CAD model. According to an embodiment of the present invention, performing the finite element simulation comprises determining one or more variations between the first finite element model and the first CAD model.