Finite Element Study on the Impact Resistance of Laminated and Textile Composites

Polymers

Xin He¹  Chao Zhang²  Jun Xing²  Yulong Li²  Zhenqiang Zhao²  Chunlin Du² 

[1] Airworthiness Certification Center, Civil Aviation Administration of China, Beijing 100102, China;Department of Aeronautical Structure Engineering, Northwestern Polytechnical University, Xi’an 710072, Shaanxi, China;

关键词: composite laminates;    textile composites;    impact damage;    numerical simulation;    ballistic threshold;   

DOI  :  10.3390/polym11111798

来源: DOAJ

【 摘 要 】

The impact resistance of fiber-reinforced polymer composites is a critical concern for structure design in aerospace applications. In this work, experiments were conducted to evaluate the impact performance of four types of composite panels, using a gas-gun test system. Computational efficient finite element models were developed to model the high-speed ballistic impact behavior of laminate and textile composites. The models were first validated by comparing the critical impact threshold and the failure patterns against experimental results. The damage progression and energy evolution behavior were combined to analyze the impact failure process of the composite panels. Numerical parametric studies were designed to investigate the sensitivity of impact resistance against impact attitude, including impact deflection angles and projectile deflection angles, which provide a comprehensive understanding of the damage tolerance of the composite panels. The numerical results elaborate the different impact resistances for laminate and textile composites and their different sensitivities to deflection angles.

【 授权许可】

Unknown