Supervisor:
Southwest Ordnance Industry Bureau
Organizer:
Chongqing Ordnance Industry Society
Chongqing University of Technology
Chongqing University of Technology
Research on oblique penetration resistance of Ti/Al3Ti laminate composites based on the material point method
| DOI: | 10.11809/bqzbgcxb2023.04.027 |
| Keywords: | numerical simulation; Ti/Al3Ti laminate composites; oblique penetration; material point method |
| Abstract: | In order to study the protective performance of Ti/Al3Ti laminate composites under oblique penetration by projectiles and to solve the problem of grid distortion in the process of simulating penetration through the finite element method, this paper establishes a numerical simulation model of projectile penetrating into Ti/Al3Ti laminate composites based on the material point method. The process of projectile penetrating into Ti/Al3Ti laminate composite materials is simulated, and the obtained strain cloud diagrams of ballistic impact target plates and the time history curve of the residual velocity of the projectile body are consistent with the experimental results in the existing literature. The process of oval projectile penetrating into Ti/Al3Ti laminate composites at different incident angles is then simulated based on the material point method. As the projectile incident angle θ increases from 0° to 45°, the residual velocity of the projectile perpendicular to the target plate decreases, and the energy absorption rate of the Ti/Al3Ti laminate composites increases from 43.4% to 99.9%. Obvious ricochet occurs when the projectile incident angle is 45°. The results show that the oblique penetration resistance of Ti/Al3Ti laminate composites improves with an increase of the incident angle of the projectile. |
| Issue: | Vol. 44 No. 4 (2023) |
| Published: | 2023-04-28 |
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