【摘 要】
：
高聚物黏结炸药(PBX)具有能量密度高、机械感度低、力学性能和加工性能较好的特点,因此在军事领域应用广泛。在外界加载下(温度、冲击等),炸药内部会产生裂纹。在适当的
【机 构】
：
中国工程物理研究院流体物理研究所,四川绵阳621999
【出 处】
：
2018第十二届全国爆炸力学学术会议
论文部分内容阅读
高聚物黏结炸药(PBX)具有能量密度高、机械感度低、力学性能和加工性能较好的特点,因此在军事领域应用广泛。在外界加载下(温度、冲击等),炸药内部会产生裂纹。在适当的条件下,萌生的裂纹会进一步传播、分叉或聚合等,这些现象必将影响到炸药装药结构的强度和刚度等力学性质。因此,深刻理解炸药在冲击加载下的动态力学行为,对评估武器系统性安全性等问题具有重要意义。本文采用新近提出的无网格近场动力学(Peridynamics,PD)计算模拟方法,对PBX炸药动态损伤断裂相关问题展开研究。
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