工字型截面弯曲切应力分布辨析1)

THE DISTRIBUTION OF BENDING SHEAR STRESS IN I-SHAPED SECTION1)

  • 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。

     

    Abstract: 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.

     

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