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Open AccessArticle

Description of Residual Stresses in Autofrettaged Open-Ended Cylinders Made of High-Strength Steel

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Division of Computational Mathematics and Engineering, Institute for Computational Science, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
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Faculty of Civil Engineering, Ton Duc Thang University, Ho Chi Minh City 700000, Vietnam
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Ishlinsky Institute for Problems in Mechanics RAS, Moscow 119526, Russia
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Department of Mechanical Engineering, National Chung Cheng University, Chiayi 62102, Taiwan
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Advanced Institute of Manufacturing with High-Tech Innovations (AIM-HI), National Chung Cheng University, Chiayi 62102, Taiwan
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Department of Biomedical Engineering, National Cheng Kung University, Tainan City 70101, Taiwan
*
Author to whom correspondence should be addressed.
Materials 2020, 13(13), 2940; https://doi.org/10.3390/ma13132940
Received: 6 May 2020 / Revised: 22 June 2020 / Accepted: 25 June 2020 / Published: 30 June 2020
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. View Full-Text
Keywords: residual stress; open-ended cylinder; autofrettage; Bauschinger effect residual stress; open-ended cylinder; autofrettage; Bauschinger effect
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MDPI and ACS Style

Alexandrov, S.; Lyamina, E.; Aoh, J.-N.; Jeng, Y.-R. Description of Residual Stresses in Autofrettaged Open-Ended Cylinders Made of High-Strength Steel. Materials 2020, 13, 2940.

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