以含外倒角薄弱环节复合材料圆管的耐撞性分析为例,提出了基于理想弹塑性模型进行耐撞性设计分析的方法,并给出了等效参数的确定策略.研究表明:利用复合材料宏观力学理论计算得到复合材料圆柱壳的等效弹性常数,并结合有限元软件计算得到的临界屈曲应力,可以将复合材料圆管等效为各向同性材料圆管进行耐撞性设计分析；采用该数值模拟策略,能够以较少的计算量来预报复合材料圆管的耐撞性能,并使得在普通的计算机上进行全尺度复合材料飞行器结构的耐撞性设计分析成为可能.
参考文献
| [1] | JACKSON K E;FASANELLA E L .Crashworthy evaluation of a 1/5-scale model composite fuselage concept[NASA/TM-1999-209132][R]. |
| [2] | 龚俊杰,王鑫伟.复合材料波纹梁吸能能力的数值模拟[J].航空学报,2005(03):298-302. |
| [3] | 龚俊杰,王鑫伟.复合材料元件吸能能力的数值模拟[J].南京航空航天大学学报,2005(02):188-191. |
| [4] | Jiancheng Huang;Xinwei Wang .Numerical and experimental investigations on the axial crushing response of composite tubes[J].Composite structures,2009(2):131-137. |
| [5] | SIGALAS I;KUMOSA M;HULL D .Trigger mechanisms in energy-absorbing glass cloth/epoxy tubes[J].Composites Science and Technology,1991,40(03):265-287. |
| [6] | 黄建城,王鑫伟,袁张贤.含薄弱环节复合材料圆管耐撞性研究[J].南京航空航天大学学报,2010(04):423-428. |
| [7] | EI-HAGE H;MALLICK P K;ZAMANI N .Numerical modelling of quasi-static axial crush of square aluminium-composite hybrid tubes[J].International Journal of Crashworthiness,2004,9(06):653-664. |
| [8] | EI-HAGE H;MALLICK P K;ZAMANI N .A numerical study on the quasi-static axial crush characteristics of square aluminum tubes with chamfering and other triggering mechanisms[J].International Journal of Crashworthiness,2005,10(02):183-195. |
| [9] | Jiancheng Huang;Xinwei Wang .EFFECT OF BOUNDARY CONDITIONS ON THE ENERGY ABSORPTION OFCOMPOSITE TUBES[J].Advanced composites letters,2011(3):73-79. |
| [10] | Jiancheng Huang;Xinwei Wang .On a new crush trigger for energy absorption of composite tubes[J].International journal of crashworthiness,2010(6):625-634. |
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%