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Investigation of three-dimensional braided composites subjected to steel projectile impact: Experimental study and numerical simulation
Abstract In this work, three-dimensional braided composite (3DBC) plates were impacted at the center line at 50%, 70%, and 90% of the height along the braiding direction using a gas gun experimental system. Spherical steel projectiles with a diameter of 10 mm were fired at the 3DBC plates with an approximate initial velocity of 210 m/s at a normal angle. It was found that an impact location near the edge led to different failure modes for the 3DBC plates. Moreover, a mesoscale finite element model (MSFEM) was developed to simulate the impact damage to the plates in LS-DYNA based on the assumption that the fiber yarn consisted of cylindrical segments. The failure modes obtained from numerical simulations agreed well with those observed experimentally. Various energy components during each time interval were determined, along with the corresponding velocity history of the projectile. The residual velocities predicted by the MSFEM were lower than the experimental results, with a relative error of approximately 11%.
Highlights A mesoscale finite element model was developed for simulating the impact damage of plates in LS-DYNA based on the assumptions that fiber yarns consist of cylindrical segments. Spherical steel projectiles with a diameter of 10 mm were fired at the 3DBC plates with an approximate initial velocity of 210 m/s. The residual velocities predicted by the MSFEM were lower than the experimental results, with a relative error of approximately 11%.
Investigation of three-dimensional braided composites subjected to steel projectile impact: Experimental study and numerical simulation
Abstract In this work, three-dimensional braided composite (3DBC) plates were impacted at the center line at 50%, 70%, and 90% of the height along the braiding direction using a gas gun experimental system. Spherical steel projectiles with a diameter of 10 mm were fired at the 3DBC plates with an approximate initial velocity of 210 m/s at a normal angle. It was found that an impact location near the edge led to different failure modes for the 3DBC plates. Moreover, a mesoscale finite element model (MSFEM) was developed to simulate the impact damage to the plates in LS-DYNA based on the assumption that the fiber yarn consisted of cylindrical segments. The failure modes obtained from numerical simulations agreed well with those observed experimentally. Various energy components during each time interval were determined, along with the corresponding velocity history of the projectile. The residual velocities predicted by the MSFEM were lower than the experimental results, with a relative error of approximately 11%.
Highlights A mesoscale finite element model was developed for simulating the impact damage of plates in LS-DYNA based on the assumptions that fiber yarns consist of cylindrical segments. Spherical steel projectiles with a diameter of 10 mm were fired at the 3DBC plates with an approximate initial velocity of 210 m/s. The residual velocities predicted by the MSFEM were lower than the experimental results, with a relative error of approximately 11%.
Investigation of three-dimensional braided composites subjected to steel projectile impact: Experimental study and numerical simulation
Tan, Huancheng (author) / Liu, Lulu (author) / Guan, Yupu (author) / Chen, Wei (author) / Zhao, Zhenhua (author)
Thin-Walled Structures ; 140 ; 144-156
2019-03-14
13 pages
Article (Journal)
Electronic Resource
English
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