悬臂梁在均布荷载作用下有限元分析

湘潭大学土木工程与力学学院有限元作业

悬臂梁承受集中荷载作用问题的弹塑性分析

何方平邹里

(湘潭大学土木工程与力学学院,湖南湘潭411105)

[摘要]本文针对曲杆在水平力作用下的受力性能,结合弹性力学基本方程和塑性力学中Mises屈服条件,得到了弹性阶段应力、位移之间的关系,以及材料发生塑性变形时,处于临界状态点的应力、应变值。同时,利用有限元分析软件ABAQUS,进行了数值模拟,分析结果与理论值吻合较好,证明所建立的有限元模型是合理的。

关键词:悬臂梁;集中荷载

THE ELASTIC-PLASTIC ANALYSIS OF THE CANTILEVER

BEAM UNDER concentrated load

He Fang-Ping Zhou Li

(College of Civil Engineering & Mechanics, XiangTan University,

Xiangtan 411105, China)

【Abstract】This article in view of the force performance of CANTILEVER BEAM UNDER concentrated load, combined with elastic mechanics basic equations and the plastic mechanics Mises yield conditions, obtained the elastic stage between stress and displacement, and the relationship between material happen plastic deformation, a critical state points of stress and strain value. At the same time, the finite element analysis software ABAQUS, the numerical simulation and analysis results and a good agreement with the theoretical value, show that the established finite element model is reasonable.

Keywords: CANTILEVER BEAM concentrated load

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