Description of residual stresses in autofrettaged open-ended cylinders made of high-strength steel

Sergei Alexandrov, Elena Lyamina, Jong Ning Aoh, Yeau Ren Jeng

Research output: Contribution to journalArticle

Abstract

The elastic range in loading-unloading processes is often reduced with a Bauschinger effect. This material property may have a high impact on residual stresses and, as a result, on the performance of autofrettaged cylinders under service conditions. The objective of the present paper is to demonstrate this impact using a material model that accounts for the response of typical high-strength steel. The solution is semi-analytic and, therefore, can be used for fast and accurate analysis of the process of autofrettage. A numerical example illustrates the general solution. This example shows that the Bauschinger effect has a significant impact on the residual circumferential stress in the vicinity of the inner radius of the cylinder. This stress is the most significant quantity of autofrettaged cylinders. Therefore, the main result obtained suggests that even a moderate Bauschinger effect should be taken into account in analyses of the process of autofrettage.

Original languageEnglish
Article number2940
Pages (from-to)1-13
Number of pages13
JournalMaterials
Volume13
Issue number13
DOIs
Publication statusPublished - 2020 Jul 1

All Science Journal Classification (ASJC) codes

  • Materials Science(all)

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