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Strength of Materials

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25-05-2018

Experimental Study of Autofrettage

Authors: G. I. Lvov, V. O. Okorokov

Published in: Strength of Materials | Issue 2/2018

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Abstract

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.

previous article Multiscale Modeling-Based Assessment of Elastic Properties of SLGS-Polymer Nanocomposites with Double-Atom Vacancy Defects

next article Effect of Heat Treatment on Relative Change in the Young Modulus of D16 Alloy Under the Action of Low Cyclic Loads

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Title: Experimental Study of Autofrettage
Authors: G. I. Lvov
V. O. Okorokov
Publication date: 25-05-2018
Publisher: Springer US
Published in: Strength of Materials / Issue 2/2018
Print ISSN: 0039-2316
Electronic ISSN: 1573-9325
DOI: https://doi.org/10.1007/s11223-018-9968-7

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