广东水利水电Issue(12)：93-99,107,8.
Midas GTS中实体单元提取内力的方法验证和精度分析
Verification and Precision Analysis of the Method for Extracting Internal Forces of Solid Elements in Midas GTS
摘要
Abstract
Aiming at the problem of internal force extraction when simulating structures with finite element solid elements,the selection strategies of different simulation elements are explored.When structural elements are available,beam elements or plate elements are preferred;when they are not available,solid elements are adopted.For simple models,the internal force can be extracted by the resultant force in the local direction,while for complex models,the measuring plate element can be used for extraction.Preliminary verification reveals that under hexahedral meshes,the mesh density has little impact on the accuracy of the results extracted by the resultant force in the local direction.However,under tetrahedral meshes,the impact is significant.Regardless of the type of mesh,when the mesh density is relatively high,even if the cross-section of the result extracted by the resultant force in the local direction passes through the middle of the element,the impact on the result is also minor.For structures with a closed shape,when using the measuring plate element to extract the internal force,the solid needs to be segmented into a non-closed state;otherwise,the result is incorrect.When using the resultant force in the local direction to obtain the result,the solid does not need to be segmented,but some elements need to be hidden to form a non-closed structure.This provides a reference for the selection and application of internal force extraction methods.关键词
有限元/实体单元/内力/测量板Key words
finite element/solid element/internal force/gauging shell分类
建筑与水利引用本文复制引用
CHEN Fuqiang,YANG Guanghua..Midas GTS中实体单元提取内力的方法验证和精度分析[J].广东水利水电,2025,(12):93-99,107,8.基金项目
国家自然科学基金项目(编号:52078143) （编号:52078143）
环北部湾广东水资源配置工程项目(编号:XJLY-2022HT-62). （编号:XJLY-2022HT-62）
