Experimental validation of multiaxial fatigue theories to estimate fatigue life of helical compression spring

Q4 Multidisciplinary Journal of Current Science and Technology Pub Date : 2023-07-13 DOI:10.59796/jcst.v13n2.2023.1749

Nilesh.C. Ghuge, Dattatraya Palande, Rakesh Shriwastva

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Abstract

High-stress amplitudes and mean stress cycles are expected to be endured by helical compression springs utilized in a two-suspension wheeler's system. Fatigue failure of all these springs brings enormous eventual repair and replacement costs. A fatigue test is conducted to ascertain fatigue strength. The spring test plan is rather extensive due to the limited time and numerous test spring versions. Efforts were made to anticipate the helical spring's fatigue life. Multiaxial fatigue theories are examined in this work. The research paper aims to scrutinize the appropriate techniques that spring manufacturers should employ in the planning stage to calculate the fatigue life of helical compression springs. The criteria of Wang & Brown, Fatemi & Socie, Mitchell, Baumel & Seeger, and Smith & Watson are used in the present investigation. The results of the experiment and the predicted life are compared. Spring fatigue life is overvalued by the Wang-Brown criterion, while the Fatemi-Socie model offers a precise forecast of fatigue life.

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多轴疲劳理论估算螺旋压缩弹簧疲劳寿命的实验验证

高应力幅值和平均应力周期预计是由螺旋压缩弹簧在两悬轮的系统中使用。所有这些弹簧的疲劳失效带来了巨大的最终维修和更换成本。进行了疲劳试验以确定疲劳强度。由于时间有限和测试spring版本众多，spring测试计划相当广泛。对螺旋弹簧的疲劳寿命进行了预测。本文对多轴疲劳理论进行了研究。本文旨在探讨弹簧制造商在规划阶段应采用的适当技术来计算螺旋压缩弹簧的疲劳寿命。本研究采用了Wang & Brown、Fatemi & Socie、Mitchell、Baumel & Seeger和Smith & Watson的标准。实验结果与预测寿命进行了比较。Wang-Brown准则高估了弹簧的疲劳寿命，而fatemi - social模型对疲劳寿命的预测较为精确。

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Journal of Current Science and Technology Multidisciplinary-Multidisciplinary

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