Threshold fracture energy in solid particle erosion

被引：4
|
作者：
Argatov, I. [1 ,2 ]
Mishuris, G. [1 ]
Petrov, Yu. [2 ,3 ]
机构：
[1] Aberystwyth Univ, Inst Math & Phys, Ceredigion SY23 3BZ, Wales
[2] Russian Acad Sci, Inst Problems Mech Engn, St Petersburg 199178, Russia
[3] St Petersburg State Univ, Math & Mech Fac, St Petersburg 198504, Russia
来源：
PHILOSOPHICAL MAGAZINE | 2013年 / 93卷 / 19期
基金：
俄罗斯基础研究基金会;
关键词：
erosion; incubation time; blunt impact; threshold fracture energy; CRITERION;
D O I：
10.1080/14786435.2013.780667
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of geometrical shape of eroding absolutely rigid particles on the threshold rate of failure has been studied. The Shtaerman-Kilchevsky theory of quasi-static blunt impact, which generalizes the Hertzs classical impact theory, is used for modelling the frictionless contact interaction of an axially-symmetric particle with an elastic half-space. The incubation time fracture criterion is applied for predicting surface fracture. It is shown that there exists a critical value of the particle shape parameter such that for all its lower values, the fracture energy possesses a non-zero minimal value.
引用
收藏
页码：2485 / 2496
页数：12
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