公开(公告)号：US20230274048A1

公开(公告)日：2023-08-31

申请号：US18168991

申请日：2023-02-14

Applicant: DASSAULT SYSTEMES DEUTSCHLAND GMBH

Inventor： Claus Bech Wittendorf PEDERSEN ,  Roman SARTORTI ,  Torsten MOECKER

IPC: G06F30/17 ,  G06F30/23

CPC classification number: G06F30/17 ,  G06F30/23

Abstract: A computer-implemented method for designing a mechanical product formed in one or more materials including obtaining inputs including a finite element model representing the mechanical product and having an initial value of design variables, one or more load cases, a corresponding load history for each load case, boundary conditions, fatigue properties of the one or more materials, and a fatigue calculation scheme. The method further includes computing a distribution of fatigue damage over the finite element model based on the inputs, computing a distribution of sets of fatigue damage sensitivities over the finite element model based on the computed distribution of fatigue damage, each fatigue damage sensitivity of each set approximating a derivative of the fatigue damage relative to a respective design variable, and updating the value of the design variables based on the fatigue damage sensitivities.