刀具结构对CFRP/Al制孔分层损伤影响的仿真研究

2018-09-21

作者：王浩涛，黄树涛，张攀，许立福单位：沈阳理工大学

摘要：建立了不同结构刀具钻削CFRP/Al叠层板的有限元仿真模型，应用有限元仿真软件ABAQUS对CFRP/Al叠层板制孔过程中CFRP层间分层损伤特征及原因进行了仿真研究，并进一步分析了刀具结构对CFRP层间分层损伤的影响。研究结果表明：CFRP层间分层损伤形貌为椭圆型，椭圆长轴所在方向和纤维方向一致；套料钻制孔的CFRP层间分层损伤在相同层间位置比PCD麻花钻小得多。

关键词：CFRP/Al叠层结构；分层损伤；刀具结构

中图分类号：TG713；TG529；TH162文献标志码：A

Finite Element Analysis on Influence Which Tool Structure Impose on Delamination Damage of CFRP/Al Stacks

Wang Haotao，Huang Shutao，Zhang Pan，Xu Lifu

Abstract:Building drilling CFRP/Al finite element simulation of different tool structure，which applied the finite element analysis software ABAQUS，had simulated the characteristic and formation mechanism of the delamination damage of carbon fiber reinforced plastic in the process of drilling CFRP/Al，and analyzed the influence which the tool structure had imposed on the delamination damage of CFRP/Al laminated construction.The results show that the delamination damage morphology of CFRP interlayer is elliptic，and the direction of elliptical long axis has the same direction with the fiber of CFRP；CFRP interlayer delamination damages in hole drilling with a core drill are to a much less extent than those with a PCD twist drill in the same interlayer position.

Keywords:CFRP/Al stacks；delamination damage；tool structure