Ratcheting behavior in SS316L concentric and eccentric reducers under cyclic axial load and constant internal pressure using DIC method

IF 3 2区工程技术 Q2 ENGINEERING, MECHANICAL

International Journal of Pressure Vessels and Piping Pub Date : 2025-01-03 DOI:10.1016/j.ijpvp.2025.105432

Ali Shahrjerdi, Mohammadreza Mirzabeygi

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引用次数: 0

Abstract

This study uses experimental and numerical methods to examine the impact of average fatigue force, amplitude fatigue force, and internal pressure on the ratcheting behavior of SS316L concentric and eccentric reducers. The material of the samples was first verified through mechanical analyses. Subsequently, the samples were fatigue tested at controlled force and room temperature (25 °C), and strain reading was done at the critical points of the samples by the digital image correlation (DIC) method. Numerical simulations with Abaqus software were conducted to validate the experimental results, confirming the experimental tests' accuracy with an acceptable margin of error. Finally, after ensuring the reliability of the numerical results, the influence of the changes in the parameters mentioned above was numerically investigated. It was observed that as these variables increase, the ratcheting strain also increases in the axial and circumferential directions, with greater sensitivity to the increase in average force and amplitude force.

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用DIC方法研究SS316L同心和偏心减速器在循环轴向载荷和恒内压作用下的棘轮行为

采用实验和数值方法研究了平均疲劳力、幅值疲劳力和内压对SS316L同心和偏心减速器棘轮行为的影响。样品的材质首先通过力学分析进行了验证。随后，在室温（25°C）下对试样进行受控力疲劳测试，并通过数字图像相关（DIC）方法在试样的临界点处进行应变读取。利用Abaqus软件进行数值模拟，验证实验结果，证实实验测试的准确性在可接受的误差范围内。最后，在保证数值结果可靠性的前提下，对上述参数变化的影响进行了数值研究。观察到，随着这些变量的增大，棘轮应变在轴向和周向上也增大，且对平均力和幅值力的增大更敏感。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Pressure Vessels and Piping 工程技术-工程：机械

CiteScore

5.30

自引率

13.30%

发文量

208

审稿时长

17 months

期刊介绍： Pressure vessel engineering technology is of importance in many branches of industry. This journal publishes the latest research results and related information on all its associated aspects, with particular emphasis on the structural integrity assessment, maintenance and life extension of pressurised process engineering plants. The anticipated coverage of the International Journal of Pressure Vessels and Piping ranges from simple mass-produced pressure vessels to large custom-built vessels and tanks. Pressure vessels technology is a developing field, and contributions on the following topics will therefore be welcome: • Pressure vessel engineering • Structural integrity assessment • Design methods • Codes and standards • Fabrication and welding • Materials properties requirements • Inspection and quality management • Maintenance and life extension • Ageing and environmental effects • Life management Of particular importance are papers covering aspects of significant practical application which could lead to major improvements in economy, reliability and useful life. While most accepted papers represent the results of original applied research, critical reviews of topical interest by world-leading experts will also appear from time to time. International Journal of Pressure Vessels and Piping is indispensable reading for engineering professionals involved in the energy, petrochemicals, process plant, transport, aerospace and related industries; for manufacturers of pressure vessels and ancillary equipment; and for academics pursuing research in these areas.