依据有限元仿真软件ABAQUS ,建立碳纤维增强型复合材料(CFRP)层合板雷击损伤热‐电耦合有限元仿真模型。利用叠加温度场的方法来近似表示内部受损状态,通过对比实验验证热‐电耦合仿真方法的正确性与有效性。利用回归统计分析技术,定量分析雷电参数与CFRP雷击损伤的相关性,并绘制相关曲线。结果表明:雷电流比能是决定CFRP雷击损伤的关键因素,纤维破坏面积、分层面积与比能具有线性相关性,树脂破坏面积、分层厚度与比能具有对数相关性。
T he thermal‐electric finite element simulation model of carbon fiber reinforced plastic (CFRP) damage caused by lightning strike was established .The superimposed temperature was trea‐ted as the internal injury .The accuracy and effectiveness of coupled thermal‐electric simulation meth‐od were verified by comparing with the experimental results .The regression analysis was taken into consideration to give a quantitative analysis of lightning parameters and CFRP lightning damage ,and the relevant curves were drawn .The results show that action integral is a key factor in determining the injury status of CFRP laminates .Fiber damage area and delamination area have a linear relation‐ship with the action integral .And resin damage area and damage thickness have a logarithmic relation with the action integral .
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