针对含圆孔有限大复合材料层板的应力集中间题,提出一种计算孔边应力分布及应力集中系数的方法:先利用经典层板理论,将复合材料层合板化归为各向异性板;再将各向异性板等效转换为一偏轴拉伸的单向纤维层板;最后利用含圆孔偏轴单向板的孔边应力计算公式来分析一般铺层层合板孔边应力集中情况.根据所推导的含孔有限宽度复合材料层合板应力集中系数的表达式,分析讨论了板宽/孔径比、铺层比例、铺层方式、材料性能参数等因素对孔边应力集中的影响.
参考文献
| [1] | WU Hwai-chung;MU Bin .On stress concentrations for isotrepis / orthotropic plates and cylinders with a circular hole[J].Composites Part B:Engineering,2003,34:127-134. |
| [2] | TAN S C.Stress concentrations around holes[M].Lancaster:Techomic,1994 |
| [3] | Giulio Romeo .Analytical and experimental behavior of laminated panels with rectangular opening under biaxial tension. compression and shear loads[J].Journal of Composite Materials,2001(8):639-664. |
| [4] | LEKHNITSKII S G.Theory of elasticity of an anisotropic body[M].Mir Publisher,1981 |
| [5] | Ren-Horng Maa;Jung-Ho Cheng .A CDM-based failure model for predicting strength of notched composite laminates[J].Composites, Part B. Engineering,2002(6):479-489. |
| [6] | 王启智,戴峰.拉伸半无限圆孔板的应力集中系数表达式[J].力学与实践,2001(06):33-35. |
| [7] | 王启智.有限域中高精度应力集中系数和应力强度因子表达式[J].机械强度,2001(03):358-361. |
| [8] | 王启智,宋小林.拉伸正交各向异性有限宽板偏心圆孔的应力集中系数表达式[J].复合材料学报,2003(06):80-86. |
| [9] | 韩小平,曹效昂,朱西平,岳珠峰.孔口缝合补强对含孔层板应变集中影响的实验研究[J].复合材料学报,2006(04):169-174. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%