Welded joint is a mechanical heterogeneous body, and the mechanical heterogeneity has great effect on dynamic fracture behaviour of welded joint.
焊接接头是一个宏观力学不均匀体，力学不均匀性对焊接接头的动态断裂行为有重要的影响。
In this paper, the fracture behaviour of rock under dynamic loads was studied by using the Hopkinson bar method.
本文用科普凯因森压力杆方法研究了岩石在动载荷作用下的破裂性质。
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