基于等效刚度的思想,通过设定层合板的属性参数模拟了加筋板结构的力学特性,提出了一种适用于不同截面形状以及布局形式的加筋板总体失稳分析的等效层合板建模方法.利用PATRAN/NASTRAN软件比较了反映实际壁板形状的高精度有限元模型与对应的赋有层合板属性的等效刚度简化模型.对于工程中常见形状的加强筋以及不同布局形式的壁板,2种模型的一阶线性失稳因子基本一致,从而验证了将等效层合板模型用于加筋壁板结构的稳定性分析可以满足工程精度要求,并显著提高了计算效率.
参考文献
| [1] | Timoshenko S,Woinowsky-Krieger S.Theory of plates and shells[M].2nd.New York,McGraw-Hill Book Company,1959:364-370. |
| [2] | 列赫尼茨基 C Γ.各向异性板[M].北京:科学出版社,1963,261. |
| [3] | 徐芝纶.弹性力学(下册)[M].3版.北京:高等教育出版社,1992:172-176. |
| [4] | Seide P.The effect of longitudinal stiffeners located on one side of a plane on the compressive buckling stress of the plate stiffener combination,NASA TN-2873[R].Washington:NASA,1953. |
| [5] | Schmit L A,Mehrinfar M.Multilevel optimum design of structures with fiber-composite stiffened-panel components[J].AIAA Journal,1982,20(1):138-147. |
| [6] | 颜海.大跨度钢桥加筋板件板组局部弹性稳定分析[J].中国市政工程,2007,31(4):31-37.Yan Hai.Analysis of local elastic stability of stiffening plate on large span steel bridge[J].China Municipal Engineering,2007,31(4):31-37. |
| [7] | 吴德财,徐元铭,万青.先进复合材料格栅加筋板的总体稳定性分析[J].复合材料学报,2007,24(2):168-173.Wu Decai,Xu Yuanming,Wan Qing.Global buckling load analysis of grid stiffened composite panels[J].Acta Materiae Compositae Sinica,2007,24(2):168-173. |
| [8] | 张志峰,陈浩然.白瑞祥.一种分析AGS结构的三角形加筋板壳单元[J].工程力学,2006,23(1),203-208.Zhang Zhifeng,Chen Haoran,Bai Ruixiang.A new triangular stiffened plate/shell element for composite grid structure analysis[J].Engineering Mechanics,2006,23(1):203-208. |
| [9] | 范华林,金丰年,方岱宁.格栅结构力学性能研究进展[J].力学进展,2008,38(1):35-52.Fan Hualin,Jin Fengnian,Fang Daining.Structural mechanics of lattice grids[J].Advances in Mechanics,2008,38(1):35-52. |
| [10] | Navin Jaunky,Norman F Knight Jr,Damodar R Arnbur.Optimal design of grid-stiffened composite panels using global and local buckling analyses[J].AIAA Journal of Aircraft,1998,35(3):478-486. |
| [11] | Wodesenbet E,Kidane S,Pang Su-Seng.Optimization for buckling loads of grid stiffened composite panels[J].Composite Structures,2003,60,159-169. |
| [12] | Chen Hongji,Tsai S W.Analysis and optimum design of composite grid structures[J].Journal of Composite Materials,1996,30(4),503-533. |
| [13] | Jones R M.Mechanics of composite materials[M].Washington,Scripta Book Company,1975:152-162. |
| [14] | Kidane S,LiGuoqiang,Helms J,et al.Buckling load analysis of grid stiffened composite cylinders[J].Composites,2003,34:1-9. |
| [15] | 中国航空研究院.笈合材料结构稳定性分析指南[M].北京:航空工业出版社,2002:137-141. |
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%