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    蔣  通  宋亞新
    （同濟(jì)大學(xué)結(jié)構(gòu)理論研究所 上海 200092）

[提要]  介紹一種計(jì)算任意形狀薄壁桿件截面剪應(yīng)力分布的有限元位移法，根據(jù)剪應(yīng)力分布的計(jì)算結(jié)果可容易地求得薄壁桿件截面剪應(yīng)力分布不均勻系數(shù) μ。該方法可適用于任意截面形狀且壁厚有變化的開(kāi)口或閉口薄壁桿件。
[關(guān)鍵詞]  薄壁桿件 剪應(yīng)力分布 不均勻系數(shù) 有限元法 位移法

A finite element displacement method is applied to the analysis problem of shear stress distribution in
thin-walled beam section.Then the shear stress distribution coefficients μ can be easily obtained. Application of the method to some numerical examples of actural structure has been shown.
Keywords: thin-walled beam; shear stress distribution coefficients; finite element method