Ductile Fracture in Metal Forming: A Review of Selected Issues

被引：3
|
作者：
Alexandrov, Sergei [1 ,2 ]
Lyamina, Elena [2 ]
机构：
[1] Natl Chung Cheng Univ, Dept Mech Engn, 168 Univ Rd, Ming Hsiung 62102, Chia Yi, Taiwan
[2] Ishlinsky Inst Problems Mech RAS, Moscow 119526, Russia
来源：
DEFORMATION AND FRACTURE IN TECHNOLOGICAL PROCESSES | 2013年 / 528卷
关键词：
free surface fracture; fracture near frictional interfaces; geometric singularity; ductile fracture; metal forming; PLASTIC-FLOW; FREE-SURFACE; COLD; IDENTIFICATION; INITIATION; CRITERIA; MODEL;
D O I：
10.4028/www.scientific.net/KEM.528.1
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The paper reviews several theoretical and experimental methods for the assessment of ductile fracture criteria and for their application to the fracture prediction in metal forming processes. In particular, distinguished features of two widely used ductile fracture criteria are demonstrated in the case of free surface fracture. Conventional empirical ductile fracture criteria are not compatible with behaviour of plastic solutions in the vicinity of maximum friction surfaces. An approach to overcome this difficulty is discussed. Finally, a theoretical/experimental method to reveal a possible effect of geometric singularities on the applicability of ductile fracture criteria is reviewed.
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页码：1 / +
页数：4
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