کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
774335 | 898167 | 2010 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Fatigue crack shielding and deflection in plain bearings under large-scale yielding Fatigue crack shielding and deflection in plain bearings under large-scale yielding](/preview/png/774335.png)
Multi-layered bearing systems used in the automotive industry show shielding and anti-shielding effects that reduce or amplify the crack driving force under large-scale yielding conditions. Using finite element analysis, it is shown that shielding in such systems results in path deflection and bifurcation despite the absence of mixed-mode loading. As the crack approaches a stiff layer, the tangential strains measured around a blunted crack tip model show a maximum corresponding to the direction of crack propagation. The distribution of such strains indicates the effect of shielding and the likelihood of the tip to deflect or bifurcate. The suitability of bi-layer and tri-layer bearing architectures is assessed through crack path and respective crack driving force predictions.
Journal: Engineering Failure Analysis - Volume 17, Issue 3, April 2010, Pages 648–657