华中科技大学学报（自然科学版）2024，Vol.52Issue(12)：178-184,7.DOI:10.13245/j.hust.241221
一种近场动力学方法与有限元方法的混合建模策略
A hybrid modeling strategy combining peridynamics method and finite element method
摘要
Abstract
Aiming at the computational efficiency issue associated with the peridynamics method,a hybrid modeling strategy that combines the peridynamics method with the finite element method was proposed.By setting up peridynamic domains and finite element domains in the fractured and non-fractured regions,respectively,and utilizing interface elements and virtual boundary layers to connect these domains,the hybrid modeling was realized.The virtual boundary layer,functioning as the peri dynamic computational domain's outer boundary,transmitted deformation feedback from the finite element domain to the peridynamic domain.The displacement field information was updated and transmitted by the finite element computational domain.After validation through tensile testing of a two-dimensional pre-cracked plate,it is found that the maximum calculation error of the hybrid model compared to that of the single peridynamics method is 2.6％,yet its computational efficiency is improved by 24.0％,indicating favorable application prospects.关键词
近场动力学/有限元/耦合/非连续问题/计算效率Key words
peridynamics/finite element method/coupling/non-local problem/computational efficiency分类
数理科学引用本文复制引用
熊伟鹏,王超,汤冬,王皓,王汝鹏..一种近场动力学方法与有限元方法的混合建模策略[J].华中科技大学学报（自然科学版）,2024,52(12):178-184,7.基金项目
江苏省自然科学基金资助项目(BK20241523) （BK20241523）
中央高校基本科研业务费专项资金资助项目(B240201152). （B240201152）
