THERMAL-ELECTRICAL SIMULATION ANALYSIS OF AIRCRAFT COMPOSITE

Abstract

Abstract: Composite material has many advantages such as small specific gravity, high strength and good corrosion resistance. So, it is widely used to the aircraft manufacturing industry. Whereas, composite material has a poor conductivity, making lighting current difficult to quickly go out when subjected to lighting. Resistance heat would cause serious heat damage and endanger the safety of aircraft flying. In this paper, the finite element analysis software is used to simulate the thermal-electrical effect of carbon fiber epoxy composite plates when struck by lighting. Simulation results show that maximum potential of the composite is consistent with the trends of the exposed lighting current waveforms, lighting current goes along with the direction of the largest conductivity of the surface the composite plates. Resistance heat generated by lighting current also mainly goes along the surface so that the thermal damage of the composite plate are concentrated on the surface. The paper obtains the thermal damage distribution of the composite plate when struck by lighting, and provides a reference for assessing the reliability of the composite exposed to lighting.

Key words: lightning, thermal damage, assessing reliability for lighting

CLC Number:

TB332

ZHANG Bin, CHEN Xiao-ning, ZHAO Jin-long, HUANG Li-yang. THERMAL-ELECTRICAL SIMULATION ANALYSIS OF AIRCRAFT COMPOSITE[J]. COMPOSITES SCIENCE AND ENGINEERING, 2015, 0(1): 33-37.

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