摘要
工字型截面是材料力学薄壁结构的典型代表,部分教材与教学PPT素材在弯曲切应力分布部分存在问题与争议,本文利用简化模型与力平衡条件给出理论分析结果,同时给出了有限元分析结果作为研讨性教学素材。
The I-shaped section is a typical representative of the thin-walled structure. The distribution of the bending shear stress sees some difference in some textbooks and teaching PPTs. In this paper, a sim-plified model and the force balance conditions are used to obtain the theoretical analysis results, compared with the finite element analysis results.
作者
李敏
李芷菡
陈伟民
LI Min;LI Zhihan;CHEN Weimin(School of Aeronautic Science and Engineering,Beihang University,Beijing 100191,China;College of Food Science&Nutritional Engineering,China Agricultural University,Beijing 100193,China;Institute of Mechanics,Chinese Academy of Sciences,Beijing 100190,China)
出处
《力学与实践》
北大核心
2021年第5期748-752,共5页
Mechanics in Engineering
基金
中科院先导项目资助(XDA22000000)。
关键词
工字型截面
弯曲切应力
强度校核
I-shaped section
bending shear stress
strength check
