Resistance of Resin Matrix Composite Target Plates to High-velocity Fragment Penetration

LIU Longhao; SHAO Mingzhe; ZHANG Yilong; LUAN Yihao; FU Zhiqiang; ZHU Liping

doi:10.19554/j.cnki.1001-3563.2026.11.032

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Packaging Engineering ›› 2026, Vol. 47 ›› Issue (11) : 308-317. DOI: 10.19554/j.cnki.1001-3563.2026.11.032

Equipment Protection

Resistance of Resin Matrix Composite Target Plates to High-velocity Fragment Penetration

LIU Longhao¹, SHAO Mingzhe¹, ZHANG Yilong¹, LUAN Yihao^1*, FU Zhiqiang¹, ZHU Liping²

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Abstract

The work aims to investigate the penetration resistance of different resin-matrix composite targets against high-velocity fragments, identify the optimal combination for penetration resistance, and provide a theoretical basis for the structural selection and optimization of protective materials. A finite element model of high-velocity fragment penetration was established using LS-DYNA software. Numerical simulation methods were employed to conduct the analysis, with carbon fiber-reinforced epoxy composite (CFRP), carbon fiber-reinforced polyetheretherketone composites (CF/PEEK), ultra-high molecular weight polyethylene-reinforced epoxy composites (UHMWPE/EP), and aramid-reinforced epoxy composites (AF/EP). Four composite target combinations were designed: CF/PEEK as the impact-facing surface paired with CFRP, UHMWPE/EP, AF/EP; and another with CFRP as the impact-facing surface combined with CF/PEEK. Penetration simulations were conducted for a 1.1 g cylindrical wedge-shaped fragment at an impact velocity of 2 000 m/s. The fragment damage behavior was described using the Johnson-Cook failure criterion, while the impact damage characteristics of the four resin-based composites were evaluated using the Chang-Chang failure criterion. Simulation results indicated that the target plate with CF/PEEK as the impact-facing surface and CFRP as the back surface exhibited the best penetration resistance. Under this configuration, the fragment kinetic energy was reduced to 0 J within 12 μs, the maximum deformation of the back surface was only 2.22 mm, approximately 30% lower than other configurations, and the target plate achieved the highest internal energy absorption rate. Through a systematic analysis of the penetration resistance of the four target plate combinations, the CF/PEEK-CFRP configuration is identified as the optimal protection scheme, achieving the intended research objectives and providing guidance for the engineering application of high-speed fragment protection structures.

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high-velocity fragments / resin matrix composites / penetration resistance / numerical simulation

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LIU Longhao, SHAO Mingzhe, ZHANG Yilong, LUAN Yihao, FU Zhiqiang, ZHU Liping. Resistance of Resin Matrix Composite Target Plates to High-velocity Fragment Penetration[J]. Packaging Engineering. 2026, 47(11): 308-317 https://doi.org/10.19554/j.cnki.1001-3563.2026.11.032

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