| 材料力学应力分析中剪应力正向的探讨 |
| |
| 引用本文： | 王家林.材料力学应力分析中剪应力正向的探讨[J].重庆交通大学学报(自然科学版),2007,26(1):158-160,166. |
| |
| 作者姓名： | 王家林 |
| |
| 作者单位： | 重庆交通大学,土木建筑学院,重庆,400074 |
| |
| 摘 要： | 指出了现有《材料力学》平面应力状态分析中剪应力正向与空间单元体的正向不一致问题,提出了调整剪应力正向的建议,介绍了调整剪应力正向后平面应力的计算公式和应力圆的相应画法,提出了在调整剪应力正向后在应力分析教学中引入矩阵计算方法的建议.教学实践证明了改进方法的可行性.
|
| 关 键 词： | 材料力学 剪应力 平面应力状态 应力矩阵 |
| 文章编号： | 1001-716X(2007)01-0158-03 |
| 修稿时间： | 2005年12月26日 |
Discussion on the Positive Direction of Shear Stress in Material Mechanics |
| |
| WANG Jia-lin.Discussion on the Positive Direction of Shear Stress in Material Mechanics[J].Journal of Chongqing Jiaotong University,2007,26(1):158-160,166. |
| |
| Authors: | WANG Jia-lin |
| |
| Abstract: | The inconsistency of shear stress positive directions in planar and spatial stress states in current Material Mechanics is indicated.The shear stress positive directions of planar stress state in current Material Mechanics is suggested to be reversed.Based on the new direction,the formulas of stresses on an incline and the corresponding Mohr circle are presented.To introduce stress matrix to calculate its main stresses,main directions and the stresses in any coordinates are advised.The teaching practice proves its feasibility. |
| |
| Keywords: | Material Mechanics shear stress planar stress state stress matrix |
| 本文献已被 万方数据 等数据库收录！ |
|
