为研究脆性材料的静态抗侵彻阻力，将Griffith双轴屈服准则作为该类材料的屈服判据，结合脆性材料的破坏特点，将其简化为弹性裂纹破碎响应.利用统一形式的静态空腔膨胀理论，得到了脆性材料的静态抗侵彻阻力.与现有文献的计算模型进行对比，结果表明该模型较适用于混凝土材料，并明确了各阻力模型的适用范围.
Abstract
To study the static penetration resistance of brittle materials, the Griffith’s biaxial stress criterion was used for the yield criterion of brittle materials. Based on the breakage characteristics of brittle materials being subjected to projectile impact, the damage response model was simplified to be elastic, cracked and fragmentized. The static penetration resistance of brittle materials was developed using the unified static cavity expansion theory. Compared with other previous resistance models, the proposeed model is more adaptive to concrete material, and the specific fields that fit for these resistance models are validated.
关键词
侵彻 /
静态抗侵彻阻力 /
脆性材料 /
空腔膨胀
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Key words
penetration /
static penetration resistance /
brittle materials /
cavity expansion
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参考文献
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脚注
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