PARAMETERS OF DEFORMATION MIXED MODES WITH ACCOUNT OF CRACK TIP CURVATURE

被引：0

作者：

Shlyannikov, V. N. ^{[1
]}

Kislova, S. Yu. ^{[1
]}

机构：

[1] Russian Acad Sci, Kazan Sci Ctr, Res Ctr Problems Power Engn, Kazan, Russia

来源：

STRENGTH OF MATERIALS | 2010年 / 42卷 / 06期

关键词：

mixed deformation modes; crack tip plastic region; higher-order terms; finite-element method; mixing and constraint parameters;

D O I：

10.1007/s11223-010-9254-9

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A method for calculating the fields of parameters of the stress-strain state at the crack tip for mixed modes of loading is developed and implemented taking into account the higher-order terms. The influence of the final crack tip curvature radius on the parameters characterizing the mixed failure modes under plane strain is shown. The nature of influence of the mixed modes of loading and the crack geometry on the behavior of dimensionless angular characteristics of the second term in the expansion of the stresses in the plastic crack tip region is established from the calculation results. The relationships between the mixing, constraint and triaxiality parameters are derived in a full range of mixed deformation modes.

引用

页码：660 / 674

页数：15

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