扭转(英语:torsion)在固体力学领域,是指一个对象由于受到扭矩而发生变形。扭矩的单位是牛顿米(N·m)。在垂直于转矩轴的截面产生的剪应力垂直于半径。 [1]
其中
对于薄壁梁,其横截面是否封闭,对抗扭性影响很大。例如,一个壁厚为半径的10%圆管,封闭横截面比开槽横截面的圆管抗扭性大300倍[3]。
参考资料
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