Mechanical Buckling Analysis of Composite Panels with/without Cutouts

• 作者: Jean Philippe PONTHOT Oana Zenaida PASCAN ZHANG Wei-hong
• 来源期刊: 国际设备工程与管理：英文版
• 学科: 工学
• 关键词: 屈曲分析 机械 开孔 板带 复合 数值结果 屈曲载荷 开发利用
• 年，卷（期）: 2012,（2）
• 页码范围: 65-76
• 页数: 12页
• 分类号: O312.2|TU323
• 语种: 英文

摘要

A simplified analytical solution suitable for simple stacking sequences was developed using the Euler buck- ling theory, the structure＇s equations of equilibrium and laminate panel mathematical formulation. Comparing these results with numerical results reveals the accuracy of the method and even more, allows us to validate the nu- merical analysis. Therefore, two important results are obtained： a simplified analytical solution for the buckling problem and validation of the numerical results. Another important and novel finding is related to the influence of the angle ply orientation and of the cutouts, on the buckling load. Under symmetrical boundary conditions and loading case, rectangular panels with elliptical cutouts, give better results for 90~ oriented plies than for 0 oriented ones. With a compression load applied in the X direction, and with material properties 10 times better in X direction than in Y direction, the best results are obtained when the load is aligned with the Y direction associated to the ma- terial reference frame. Moreover, panels with cutouts seem to behave better than panels without cutouts under cer- tainply orientation angles.

作者信息

序号	姓名	单位	发文数	被引次数	H指数	G指数
1	Oana Zenaida PASCAN		1	0	0.0	0.0
2	ZHANG Wei-hong		1	0	0.0	0.0
3	Jean Philippe PONTHOT		1	0	0.0	0.0