| 圣维南原理和轴向拉(压)正应力公式的研究 |
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| 引用本文： | 张德凤.圣维南原理和轴向拉(压)正应力公式的研究[J].河北工业科技,1993(2). |
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| 作者姓名： | 张德凤 |
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| 作者单位： | 河北机电学院基础部 |
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| 摘 要： | 本文通过在静力等效的轴向载荷作用下薄壁杆的正应力和变形的分析,论述了只要静力等效的轴向力产生双力矩,圣维南原理和实心杆的轴向拉(压)正应力公式对薄壁开口截面杆和部分薄壁闭合截面杆都是不适用的。给出了薄壁矩形截面杆的适用条件和适用曲线。
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| 关 键 词： | 开口截面 闭合截面 薄壁杆 圣维南原理 |
Study on Saint-Venant's Princible and Formula of Axial Stress |
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| Zhang Defeng.Study on Saint-Venant''''s Princible and Formula of Axial Stress[J].Hebei Journal of Industrial Science & Technology,1993(2). |
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| Authors: | Zhang Defeng |
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| Institution: | Department of Basic Courses |
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| Abstract: | In this paper,thragh the analysis of strese and deformation of thin-wall beam subjected to axial loads eguivalent to a static one,Saint-Venant's princible and formula of akial stress are not applied to all thin-wall beams with opened sestion and to a part of thin awll beams with closed section,when akial loads cguivalent to a static one causes double moments.The condition and the curve applied to thin-wall beams of rectangwlar cross section are presented. |
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| Keywords: | opend section closed section thin-wall beam saint-venant's princible |
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