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中文摘要：
基于非线性有限元软件ANSYS/LS-DYNA,选用Holmquist-Johnson-Cook损伤本构模型,对不同介质中集团装药爆炸下混凝土的动态响应进行了数值模拟,研究了装药在不同介质中爆炸对混凝土的冲击响应和爆炸波在混凝土内的传播与衰减规律。结果表明,介质对混凝土内应力场、压力场、损伤和速度场的分布与衰减有着十分明显的影响。
英文摘要：
Non-linear finite element software LS-DYNA and the Holmquist-Johnson-Cook damage constitutive model were employed to study the dynamic response of concrete under the non-contact explosion of group charge in three different mediums in order to reveal the propagation and attenuation law of blasting wave.The results showed that there was a strong relationship between the mediums and the distribution of stress,pressure,damage and velocity in concrete.
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