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论文类型： 期刊论文

发表时间： 2021-07-22

发表刊物： Journal of Beijing Institute of Technology (English Edition)

卷号： 13

期号： 3

页面范围： 328-330

ISSN号： 10040579

关键字： Amorphous alloys; Shear stress; Strain, Colliding angle; Equivalent strain rate; Shear bands; Stagnation point, Explosive welding

摘要： The distribution of equivalent strain rate near the stagnation point and the effects of colliding angle on strain rate were studied. An ideal fluid model of symmetrically colliding was used to research them. Calculations showed that the equivalent strain rate and the colliding half angle are closely related to each other with the material geometrical size and explosive velocity selected, the equivalent strain has large gradient within several jet thickness near the stagnation point, and the maximal strain points are lined up along a beeline, but a curve near the stagnation point. With different colliding angles, they can be fitted by using exponential curve. That is, the exponential curve can be regarded as the token curve in explosive welding.