Study of impact damage on composite laminates induced by strip impactor using DIC and infrared thermography
Study of impact damage on composite laminates induced by strip impactor using DIC and infrared thermography
复制标题
利用 DIC 和红外热成像技术研究带状冲击器对复合材料层压板的冲击损伤
DOI：
10.1016/j.tws.2022.109288
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发表时间：
2022-04-27
影响因子：
6.4
通讯作者：
Wang, Bo
中科院分区：
文献类型：
--
作者：
Tuo, Hongliang;Wu, Tao;Wang, Bo
本文利用 DIC 和红外热成像研究了带状冲击器引起的冲击损伤以及复合材料层压板的残余机械性能。采用连续损伤模型和内聚模型分别模拟层内和层间行为。结果表明，随着冲击角度的增大，分层面积和残余载荷能力减小。在冲击后压缩（CAI）过程中，损伤区域的应变集中导致局部屈曲。此后，分层和基质损伤开始，随后是纤维损伤。当纤维损伤区域覆盖损伤区域的整个宽度时，整个层压板就会塌陷。
This paper studies the impact damage induced by strip impactors and residual mechanical performance of composite laminates using DIC and infrared thermography. A continuum damage model and a cohesive model were adopted to simulate the intralaminar and interlaminar behaviors, respectively. The results reveal that the delamination area and residual load capacity decrease as impact angle increases. During compression after impact (CAI) process, the strain concentration in damage area causes local buckling. After that the delamination and matrix damage initiate, followed by fiber damage. The whole laminates collapse when the fiber damage area covers the whole width of the damage area.