ANALYSIS OF DAMAGE CHARACTERISTICS OF CARBON WOVEN FABRIC/EPOXY LAMINATES SUBJECTED TO SIMULATED LIGHTNING STRIKE

Abstract

Abstract: This paper experimentally investigates the damage characteristics of two stacking sequenced carbon woven fabric/epoxy laminates subjected to three different levels of simulated lightning strike. The mechanical properties of post-lightning specimens are then studied. Observations show that three types of lightning strike damage have been formed. With the increase of strike intensity, different behaviors have been shown for these three damage forms. Meanwhile, stacking sequence has significant influence on the area of internal delamination. SEM shows that the resin/fiber interfacial bonding is severely damaged by a thermal-mechanical effect due to lightning strike infliction. For both of the two stacking sequenced specimens, the residual modulus and strength decrease with the increase number of lightning strike. However, failure mechanics are quite different for the two kinds.

Key words: fabric composite materials, lightning strike, damage mechanics, ultrasonic inspection

CLC Number:

TB332

HUANG Lai,LI Yi-chao, CHE Hong-wei, ZHOU Ting. ANALYSIS OF DAMAGE CHARACTERISTICS OF CARBON WOVEN FABRIC/EPOXY LAMINATES SUBJECTED TO SIMULATED LIGHTNING STRIKE[J]. Fiber Reinforced Plastics/Composites, 2016, 0(10): 65-69.

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