Numerical and analytical modeling of elastic-plastic fracture mechanics parameters

被引：4
|
作者：
Milovic, Lj. [1 ]
Sedmak, A. [2 ]
Sedmak, S. [3 ]
Putic, S. [1 ]
Zrilic, M. [1 ]
机构：
[1] Univ Belgrade, Fac Technol & Met, Karnegijeva 4, Belgrade 11000, Serbia
[2] Univ Belgrade, Fac Mech Engn, Karnegijeva 4, Belgrade 11000, Serbia
[3] Society Struct Integ & Life, Karnegijeva 4, Belgrade 11000, Serbia
来源：
RESEARCH TRENDS IN CONTEMPORARY MATERIALS SCIENCE | 2007年 / 555卷
关键词：
elastic-plastic analysis; fracture mechanics parameters; numerical modelling; structural integrity;
D O I：
10.4028/www.scientific.net/MSF.555.565
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Structural integrity and service reliability depend on the fracture resistance of a material. Cracks in the material are the locations of stress concentration, and elastic-plastic deformation can occur causing the development of mixed-mode type of fracture ahead the crack tip. Crack behavior in the elastic-plastic region is analyzed applying numerical and analytical simulation based on fracture mechanics parameters, characterizing the response of the material at the crack tip. Numerical and analytical results are compared with the corresponding experimental results obtained in previously performed fracture mechanics tests with standard single-edge notch bending SEN(B) specimens. The comparison shows an acceptable level of agreement, enabling application of the proposed numerical model of crack growth in the mixed-mode fracture analysis for structural integrity assessment.
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页码：565 / +
页数：2
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