[Oral Presentation]基于物质点法的材料大变形数值模拟

Organized By

Hohai University

Monash University

Co-organized by

Southeast University

Jiangxi University of Science and Technology

Northeast University

DUT-BSU Scientific Research and Innovation Center

Suzhou University of Science and Technology

State Key Laboratory of Structural Analysis, Optimization and CAE Software for Industrial Equipment

Sponsoring agency

KELI SDEM Software (Dalian) Co., Ltd.

Sugon Smart Computing Information Technology Co., Ltd.

Beijing Paratera Technology Co., Ltd.

Simpop Information Technology Co., Ltd.

Important Dates

Conference Announcement

December 2023, release First Round Announcement
Abstract Submission Deadline
March 31^th, 2024
Paper Submission Deadline
April 30^th, 2024
Registration
From January 1^st, 2024
Conference Schedule
May 31^st (Friday), 2024 On-Site Registration
June 1^st to 3^rd, 2024 Conference

基于物质点法的材料大变形数值模拟

ID：18 Submission ID：22 View Protection：ATTENDEE Updated Time：2024-04-09 21:57:58 Hits：580 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

Session：[No Session] » [No Session Block]

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Abstract

物质点法（MPM）是一种兼具拉格朗日和欧拉算法的优势的无网格数值方法。该方法将物质离散为一系列携带物质的变形、位置、速度等信息的物质点，并插值到背景网格进行计算。通过引入不同材料的本构模型，得到不同材料物质点的变形梯度，可以对流体、弹性体、弹塑性体等进行模拟。由于该方法物质点间通过背景网格进行联系，对物体形状没有连续或非连续约束，故弹性体的大变形模拟是物质点法数值模拟的一个明显优势。本文围绕物质点法介绍其计算流程，采用APIC方法进行数值计算，通过一系列数值模拟验证该方法在模拟物体大变形方面在其精度允许范围内具有可行性和鲁棒性。

Keywords

物质点法,本构模型,背景网格,大变形,数值模拟

Speaker

薛一桢

大连理工大学

Submission Author

薛一桢大连理工大学

季顺迎大连理工大学

王嗣强大连理工大学

Sponsored By

Hohai University

Panel of Computational Mechanics on Granular Materials, Working Party of Computational Mechanics, Chinese Society of Theoretical and Applied Mechanics

Jiangsu Society of Theoretical and Applied Mechanics