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摘要: 针对弹体高速正侵彻和斜侵彻混凝土/岩石半无限靶,基于考虑弹头质量磨蚀的弹体轴向阻力计 算方法,结合弹体在非对称质量磨蚀及斜侵彻条件下所受的横向作用力,给出了高速弹体在正侵彻和斜侵彻 两种状态下弹体结构屈服的分析方法,得到了在给定弹体壁厚条件下保持弹体结构稳定性的弹体极限初始 撞击速度的要求,并讨论了不同的弹靶组合条件对弹体极限初始撞击速度的影响。Abstract: Aimedatnormalandobliquepenetrationintosemi-infiniteconcrete/limestonetargetsbya high-speedprojectile,anaxisdragforcewasemployedtoreflectthecontinuousvariationofthenose shape.Withconsideringthetransverseloadinthecasesofasymmetricalmassabrasionandoblique penetration,amethodwasproposedtoanalyzetheyieldofanormally/obliqulypenetratingprojectile. Theinitialimpactvelocitylimitwasdeducedbytakingtheprojectilestabilityintoaccountwhenthe cartridgethicknesswasgiven,andtheinfluencesofdifferentprojectile/targetconditionswerediscussed.
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Key words:
- mechanicsofexplosion /
- cartridgethickness /
- massabrasion /
- high-speedprojectile /
- penetration /
- yield
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