[Oral Presentation]密集颗粒体系多尺度连续介质模型

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

密集颗粒体系多尺度连续介质模型

ID：261 Submission ID：257 View Protection：ATTENDEE Updated Time：2024-04-30 10:41:59 Hits：451 Oral Presentation

Start Time：Pending （Asia/Shanghai）

Duration：Pending

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

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Abstract

Science杂志将颗粒材料的精确描述列为百大科学难题，强调微观颗粒形状决定介观接触，进而影响宏观行为。不同于刚性假定的离散元法，报告人从连续力学角度：（1）微观尺度，通过空间函数描述颗粒形状，提出新型函数降噪方法与边界条件施加方案，解决颗粒几何描述问题；（2）介观尺度，利用颗粒函数计算相对位置，推导能量泛函的具体表达，提出简单网格下复杂多体接触算法，突破传统方法无应力分布的限制，并建立非预设路径的颗粒破碎新算法；（3）宏观尺度，发展多过程与多相算法，形成算法体系。

Keywords

颗粒介质；密集流；多尺度耦合；接触模型；流固耦合

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