几何中心与中和轴
请问一下,几何中心与中性(和)轴的区别是什么,谢谢? wiki上的解释不错:The neutral axis is an axis in the cross section of a beam or shaft along which there are no longitudinal stresses or strains. If the section is symmetric and is not curved before a bend occurs, then the neutral axis is at the geometric centroid. All fibers on one side of the neutral axis are in a state of tension, while those on the opposite side are in compression
回复 楼主 yiqing 的帖子
中和轴是受弯构件截面应力分布中,压应力和拉应力的分界线,并且它和弯曲主轴平行,对于钢材而言,中和轴两侧截面面积是相等的。 几何中心仅仅从几何的角度来计算中心,是一个点中心轴还得考虑进材性,是一条线
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