基于ABAQUS的复合材料低速冲击损伤分析

目的分析不同冲击能量对复合材料层合板的损伤情况,验证有限元模型的合理性和有效性。方法以CCF300/10128H型碳纤维树脂基复合材料层合板为研究对象,采用落锤冲击试验机对层合板进行冲击实验,然后对冲击后的试验件进行超声C扫描。建立有限元模型,运用ABAQUS软件对冲击过程进行模拟。结果有限元模拟结果与实验结果吻合良好。结论复合材料层合板内部损伤随着冲击能量的增大而快速变大。出现穿透损伤以后,损伤趋于平缓,有限元模型能够较好地预测复合材料低速冲击损伤。

Analysis for the Damage of Composites under Low-velocity Impact Based on ABAQUS

Objective To analyze the damage of composite laminates under different impact and to verify the rationality and validity of the finite element model. Methods Drop hammer impact test machine was used for the CCF300 /10128H fiber resin matrix composite laminates, after that, Ultrasonic C-scan was used to scan the test piece. And then a finite element model was established, ABAQUS was used to simulate the impact process. Results The results of finite element simulation were in good agreement with the experimental results. Conclusion The internal damage rapidly increased with the increasing impact. When penetrated damage occurred, the damage became mild, and the finite element could relatively well predict low-impact damage of composites.