Enhancing High-Temperature Fatigue Performance of AA2024-T4 Alloy Through Shot Peening: A Comprehensive Numerical Simulation

IF 0.7 4区 材料科学 Q4 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Strength of Materials Pub Date : 2024-09-17 DOI:10.1007/s11223-024-00674-0
A. H. Alwin, H. Ksibi
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Abstract

This research is part of a series of previous studies aiming to advance technology for aluminum alloys, particularly focusing on AA2024-T4 alloy. The main objective encompassed predicting the fatigue life of a standard specimen under varying experimental conditions associated with the shot peening process. The study delved into forecasting the fatigue life stemming from the cyclic impacts of shots, followed by an endeavor to enhance the specimen’s surface longevity through numerical simulation techniques under varying temperatures, including room and high temperatures. The study predicted the fatigue life resulting from cyclic shot impacts, followed by an attempt to improve the specimen’s surface longevity using numerical simulation techniques under different temperatures, including ambient and elevated temperatures. Interestingly, the research also revealed that static stress becomes apparent after the first 106 cycles, consistent with the results observed in different test cases with different forces applied. Indeed, to guarantee the validity of the results, the interpretations and conclusions drawn have been rigorously validated both at room temperature and at an elevated temperature of 250°C. In summary, this research successfully investigates the numerical analysis of the structure of the AA2024-T4 alloy, providing valuable information on its fatigue behavior at different temperatures.

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通过喷丸强化提高 AA2024-T4 合金的高温疲劳性能:综合数值模拟
这项研究是之前一系列研究的一部分,旨在推动铝合金技术的发展,尤其是针对 AA2024-T4 合金的研究。主要目标包括预测标准试样在与喷丸强化工艺相关的不同实验条件下的疲劳寿命。研究深入预测了喷丸循环冲击产生的疲劳寿命,随后通过数值模拟技术努力提高试样在不同温度(包括室温和高温)下的表面寿命。该研究预测了循环弹丸撞击产生的疲劳寿命,然后尝试在不同温度(包括常温和高温)下利用数值模拟技术提高试样的表面寿命。有趣的是,研究还发现,静态应力在最初的 106 次循环后变得明显,这与不同试验案例中施加不同力时观察到的结果一致。事实上,为了保证结果的有效性,所得出的解释和结论在室温和 250°C 高温下都经过了严格验证。总之,这项研究成功地对 AA2024-T4 合金的结构进行了数值分析,为其在不同温度下的疲劳行为提供了有价值的信息。
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来源期刊
Strength of Materials
Strength of Materials MATERIALS SCIENCE, CHARACTERIZATION & TESTING-
CiteScore
1.20
自引率
14.30%
发文量
89
审稿时长
6-12 weeks
期刊介绍: Strength of Materials focuses on the strength of materials and structural components subjected to different types of force and thermal loadings, the limiting strength criteria of structures, and the theory of strength of structures. Consideration is given to actual operating conditions, problems of crack resistance and theories of failure, the theory of oscillations of real mechanical systems, and calculations of the stress-strain state of structural components.
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