TY - JOUR
T1 - Lightning damage analysis of composite bolted joint structures based on thermal-electrical-structural simulation
AU - Zhu, Yuchen
AU - Li, Yuan
AU - Sun, Jinru
AU - Liu, Chuang
AU - Xu, Xiangjie
AU - Zhang, Kaifu
AU - Cheng, Hui
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2025/1/15
Y1 - 2025/1/15
N2 - To analyze the impact of connection behavior on lightning-induced ablation damage in composite bolted joints, this paper analyzes contact properties based on thermoelectric characteristics and develops a lightning ablation damage model for composite interference joint structures. A preliminary analysis of the electrothermal conduction process in the interference-fit composite joints clarifies the influence of connection behavior on lightning damage. The results indicate that a skin effect occurs near the fastener-to-CFRP interface, and both Joule heating and conductive heat significantly affect the temperature distribution in the composite bolted joint structure. A lightning current impact test was also conducted for validation and comparison. Quantitative comparisons show that the predicted in-plane damage aligns well with the experimental results, with an error of 7.37%, while the difference in thickness direction damage is more significant, with an error of 40.02%. Furthermore, the analysis of ablation damage characteristics reveals that the most severe damage occurs in the lower-middle region of the CFRP thickness due to the combined effects of interference damage and bolt preload, while damage in other areas is suppressed.
AB - To analyze the impact of connection behavior on lightning-induced ablation damage in composite bolted joints, this paper analyzes contact properties based on thermoelectric characteristics and develops a lightning ablation damage model for composite interference joint structures. A preliminary analysis of the electrothermal conduction process in the interference-fit composite joints clarifies the influence of connection behavior on lightning damage. The results indicate that a skin effect occurs near the fastener-to-CFRP interface, and both Joule heating and conductive heat significantly affect the temperature distribution in the composite bolted joint structure. A lightning current impact test was also conducted for validation and comparison. Quantitative comparisons show that the predicted in-plane damage aligns well with the experimental results, with an error of 7.37%, while the difference in thickness direction damage is more significant, with an error of 40.02%. Furthermore, the analysis of ablation damage characteristics reveals that the most severe damage occurs in the lower-middle region of the CFRP thickness due to the combined effects of interference damage and bolt preload, while damage in other areas is suppressed.
KW - Carbon fiber reinforced polymer
KW - Electrothermal transfer process
KW - Interference joint structure
KW - Lightning current strike
KW - Lightning damage mechanism
UR - http://www.scopus.com/inward/record.url?scp=85209373782&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2024.118720
DO - 10.1016/j.compstruct.2024.118720
M3 - 文章
AN - SCOPUS:85209373782
SN - 0263-8223
VL - 352
JO - Composite Structures
JF - Composite Structures
M1 - 118720
ER -