On the Behaviour of 316 and 304 Stainless Steel under Multiaxial Fatigue Loading: Application of the Critical Plane Approach
On the Behaviour of 316 and 304 Stainless Steel under Multiaxial Fatigue Loading: Application of the Critical Plane Approach
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DOI：
10.3390/met9090978
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发表时间：
2019-09
期刊：
影响因子：
2.9
通讯作者：
A. S. Cruces;P. Lopez‐Crespo;S. Bressan;Takamoto Itoh;B. Moreno
中科院分区：
文献类型：
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作者：
A. S. Cruces;P. Lopez‐Crespo;S. Bressan;Takamoto Itoh;B. Moreno
本文研究了316和304不锈钢的多轴疲劳行为。这项研究是基于临界平面方法，该方法基于对裂纹倾向于在特定平面内形核和扩展的观察。为此，采用了三种不同的临界面模型，即Fatei-Social(FS)模型、Smith-Watson-Topper(SWT)模型和新提出的Sandip-Kallmeyer-Smith(SKS)模型。该研究考虑了等双轴应力状态、平均应变和非比例硬化效应。进行了包括拉伸、扭转和内压不同组合的实验测试，有助于识别两种材料的主要破坏模式。结果还表明，SKS损伤参数比FS更加保守，两种材料的散射度都较低，预测值介于FS和SWT之间。
In this work, the multiaxial fatigue behaviour of 316 and 304 stainless steel was studied. The study was based on the critical plane approach which is based on observations that cracks tend to nucleate and grow in specific planes. Three different critical plane models were employed to this end, namely Fatemi–Socie (FS), Smith–Watson–Topper (SWT) and the newly proposed Sandip–Kallmeyer–Smith (SKS) model. The study allowed equi-biaxial stress state, mean strain and non–proportional hardening effects to be taken into consideration. Experimental tests including different combinations of tension, torsion and inner pressure were performed and were useful to identify the predominant failure mode for the two materials. The results also showed that the SKS damage parameter returned more conservative results than FS with lower scatter level in both materials, with prediction values between FS and SWT.