TY - GEN
T1 - Influence on Fragment Characteristics of Liner Thickness in Corrugated Liner Charge Under Explosive loads
AU - Li, Yujing
AU - Li, Yongnan
AU - Shi, Peizhuo
AU - Yao, Wang
AU - Li, Mingze
AU - Li, Junxian
AU - Dong, Yongxiang
N1 - Publisher Copyright:
© The Author(s), under exclusive license to Springer Nature Switzerland AG 2026.
PY - 2026
Y1 - 2026
N2 - The experimental and numerical researches were conducted to investigate the influence on fragment characteristics of liner thickness in corrugated liner charge under explosive loads in this paper. Experimental results show that both the 1.0 mm and 1.5 mm thick corrugated liner charges effectively control the fragmentation of the casing, and the former exhibit a higher average fragment mass and superior mass distribution characteristics. Meanwhile, observations under SEM reveal a 10% greater depth of energy focusing effect in 1.0 mm thick corrugated liner charge. Numerical simulations illustrate that the corrugated liner charges with different liner thicknesses can effectively control the fragmentation of casing, with the process of fragmentation containing the collapse of the corrugated liner under explosive loads, the localized effect on the casing of the energy focusing flows generated by corrugated liner and the controlled fragmentation of casing. Simulations demonstrate that the 1.0 mm thick corrugated liner charge achieves optimal performance in stress characteristics in the casing, average fragment mass and depth of energy focusing effect among the corrugated liner charges with different liner thicknesses. Additionally, numerical simulations show that the fragment velocity decreases as the thickness of the corrugated liner increases in corrugated liner charges with different liner thicknesses. The findings offer a reference for the design and optimization of the related charge configurations in the future.
AB - The experimental and numerical researches were conducted to investigate the influence on fragment characteristics of liner thickness in corrugated liner charge under explosive loads in this paper. Experimental results show that both the 1.0 mm and 1.5 mm thick corrugated liner charges effectively control the fragmentation of the casing, and the former exhibit a higher average fragment mass and superior mass distribution characteristics. Meanwhile, observations under SEM reveal a 10% greater depth of energy focusing effect in 1.0 mm thick corrugated liner charge. Numerical simulations illustrate that the corrugated liner charges with different liner thicknesses can effectively control the fragmentation of casing, with the process of fragmentation containing the collapse of the corrugated liner under explosive loads, the localized effect on the casing of the energy focusing flows generated by corrugated liner and the controlled fragmentation of casing. Simulations demonstrate that the 1.0 mm thick corrugated liner charge achieves optimal performance in stress characteristics in the casing, average fragment mass and depth of energy focusing effect among the corrugated liner charges with different liner thicknesses. Additionally, numerical simulations show that the fragment velocity decreases as the thickness of the corrugated liner increases in corrugated liner charges with different liner thicknesses. The findings offer a reference for the design and optimization of the related charge configurations in the future.
KW - Corrugated liner charge
KW - Energy focusing effect
KW - Explosive loads
KW - Fragment characteristics
UR - https://www.scopus.com/pages/publications/105040537913
U2 - 10.1007/978-3-032-17313-3_90
DO - 10.1007/978-3-032-17313-3_90
M3 - Conference contribution
AN - SCOPUS:105040537913
SN - 9783032173126
T3 - Mechanisms and Machine Science
SP - 1142
EP - 1154
BT - Computational and Experimental Simulations in Engineering - Proceedings of ICCES 2025
A2 - Feng, Xiqiao
A2 - Zhou, Kun
PB - Springer Science and Business Media B.V.
T2 - 31st International Conference on Computational and Experimental Engineering and Sciences, ICCES 2025
Y2 - 25 May 2025 through 29 May 2025
ER -