Experimental Study of Autofrettage

被引：3

作者：

Lvov, G. I. ^{[1
]}

Okorokov, V. O. ^{[2
]}

机构：

[1] Natl Tech Univ, Kharkiv Polytech Inst, Kharkov, Ukraine

[2] Univ Strathclyde, Glasgow, Lanark, Scotland

来源：

STRENGTH OF MATERIALS | 2018年 / 50卷 / 02期

关键词：

autofrettage; the Bauschinger effect; material damage; nonlinear kinematic hardening;

D O I：

10.1007/s11223-018-9968-7

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The autofrettage of alloy D16 disks is investigated experimentally. The results of the experimental modeling are compared with the numerical calculations. A mathematical model of plasticity is developed based on the performed cyclic push-pull tests of flat specimens. Additional functions of the previously accumulated plastic strain are incorporated into a nonlinear kinematic hardening model. The damage parameter is included according to the effective stress concept to describe a decrease in the elastic modulus during elastic-plastic deformation. Experimentally obtained distribution of residual circumferential and radial strains has shown a good agreement with the numerical results.

引用

页码：270 / 280

页数：11

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