通过对复合材料加筋板进行轴向压缩实验和非线性有限元模拟,研究了其后屈曲阶段的损伤和破坏行为.加筋板在实验中被压缩至完全破坏,压溃的加筋板表现出复杂的后屈曲损伤,包括筋条脱粘、纤维断裂、分层、基体开裂等损伤模式.有限元模型中引入了Hashin准则和基于二次应力的胶层失效准则,失稳及破坏载荷的预测结果和实验值吻合较好.分析表明:胶结界面对复合材料加筋板的后屈曲性能有重要影响；局部失稳后蒙皮承载能力变弱,筋条承受主要载荷,蒙皮、筋条刚度分配应该是结构屈曲和后屈曲设计时重点考虑的问题.
参考文献
| [1] | A.C. Orifici;R.S. Thomson;R. Degenhardt;A. Kling;K. Rohwer;J. Bayandor .Degradation investigation in a postbuckling composite stiffened fuselage panel[J].Composite structures,2008(2):217-224. |
| [2] | ZIMMERMANN R;KLEIN H;KLING A .Buckling and postbuckling of stringer stiffened fibre composite curved panels-Tests and computations[J].Computers and Structures,2006,73(02):150-161. |
| [3] | CHIARA BISAGNI;RICCARDO VESCOVINI.Assessment of the Damage Tolerance of Postbuckled Hat-Stiffened Panels using Single-Stringer Specimens[A].,2010 |
| [4] | Adrian C. Orifici;Inigo Ortiz de Zarate Alberdi;Rodney S. Thomson;Javid Bayandor .Compression And Post-buckling Damage Growth And Collapse Analysis Of Flat Composite Stiffened Panels[J].Composites science and technology,2008(15/16):3150-3160. |
| [5] | LUCA LANZI.An Experimental Investigation on the Post-buckling Behavior of Composite Stiffened Panels[A].,2004 |
| [6] | Luca Lanzi .A numerical and experimental investigation on composite stiffened panels into post-buckling[J].Thin-Walled Structures,2004(12):1645-1664. |
| [7] | JEFF W H YAP;RODNEY S THOMSON;MURRAY L SCOTT .Influence of post-buckling behavior of composite stiffened panels on the damage criticality[J].Computers and Structures,2004,66(1-4):197206. |
| [8] | HASHIN Z .Failure criteria for unidirectional composites[J].Applied Mechanics,1980,47(02):329-334. |
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