Dynamic fragmentation of solid particles interacting with a rigid barrier

被引：3
|
作者：
Gorbushin, N. A. [1 ]
Petrov, Yu V. [1 ,2 ]
机构：
[1] St Petersburg State Univ, St Petersburg 199034, Russia
[2] Russian Acad Sci, Inst Problems Mech Engn, St Petersburg 199178, Russia
来源：
TECHNICAL PHYSICS | 2014年 / 59卷 / 02期
基金：
俄罗斯基础研究基金会;
关键词：
THRESHOLD CONDITIONS; FRACTURE; ENERGY; DEPENDENCE; FAILURE;
D O I：
10.1134/S1063784214020091
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Fragmentation of small solid particles as a result of collision with a rigid barrier is considered. It is shown that the application of the Griffith energy approach to dynamic fracture is characterized by specific surface energy differing from its value determined from static tests. The existence of the threshold fragmentation velocity is established and the method for its prediction is proposed. The method for experimental estimation of the fracture incubation time is also proposed.
引用
收藏
页码：194 / 198
页数：5
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