圆轴纯扭转时横截面上的正应力研究

Studies on Cross-section's Normal Stress for Circular Shaft

以平面假设为基础 ,分析圆轴扭转时横截面上的正应力分布以及最大正应力与最大剪应力的相对比值的影响因素 ,并对强度计算时是否必须考虑扭转正应力提供了判断依据 .

Based on so called plane assumption,this paper analyzes the hormal stress at a point on cross section,and influencing elements exerted by the comparing rates between maximum normal stress and maximum shear consideration or not in the check of twist deformation is provided.