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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2013, Vol. 34 ›› Issue (2): 301-308.doi: 10.7527/S1000-6893.2013.0034

• Solid Mechanics and Vehicle Conceptual Design • Previous Articles     Next Articles

Simulation of Ablation Damage of Composite Laminates Subjected to Lightning Strike

DING Ning1, ZHAO Bin1, LIU Zhiqiang1, WANG Fusheng1, GAN Jian2   

  1. 1. School of Mechanics and Civil Engineering, Northwestern Polytechnical University, Xi’an 710129, China;
    2. Chengdu Aircraft Design & Research Institute, Aviation Industry Corporation of China, Chengdu 610041, China
  • Received:2012-03-10 Revised:2012-05-15 Online:2013-02-25 Published:2012-05-30
  • Contact: 10.7527/S1000-6893.2013.0034 E-mail:zhaobin@nwpu.edu.cn
  • Supported by:

    National Natural Science Foundation of China (51175424); "111" Project (B07050); Basic Research Foundation of Northwestern Polytechnical University (JC20110257)

Abstract:

In order to study the issue of lightning ablation of composite laminates, a three dimensional finite element model of composite laminate ablation is constructed through a coupled thermal-electrical-structural analysis of composite laminates subjected to lightning strike. Lightning strike responses of different impulse waveforms of composite laminates are simulated through element deletion method. The damage mechanism and damage pattern of composite laminates subjected to lightning strike is analyzed. The mechanism of the transient heat transfer and heat decomposition of composite laminates subjected to lightning strikes of different impulse waveforms and different peak currents is demonstrated. The influence of different lightning parameters on ablation results is analyzed. The results show that the ablation size and inner damage of the composite laminate is influenced greatly by the peak current, electrical charge and action integral of the lightning strike.

Key words: element deletion method, lightning strike, composites, damage, ablation

CLC Number: