Effect of shot peening on the fatigue behaviour of cast magnesium A8
نویسندگان
چکیده
منابع مشابه
Effect of Shot Peening on the Fatigue Behaviour of Cast Magnesium A 8
Shot peening is known to improve the fatigue performance of structural metallic materials. The improvement in fatigue life is derived primarily from compressive residual stresses that are introduced into the near-surface of the components and which hinder crack initiation and growth. Magnesium alloys are finding increasing use in automotive applications, but their relatively low strength means ...
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Shot peening beneficial effects on fatigue life of mechanical components are well known. However, there are some reports in the literature that indicate inappropriate shot peening parameters tend to reduce the fatigue life. It is therefore, the purpose of this study to find a logical quantitative justification for these observations. Using finite element method, a dynamic elastic-plastic simula...
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Shot peening applies a residual compressive stress field (RCSF) on the surface of parts. It also shifts “crack nucleation sites” to sub-surface locations. A nondestructive method of measuring the stresses, Sin2ψ was utilized here and the stress values introduced to Ansys software. For this purpose, uniform stress in all directions was applied on the con rod. Loading on the rod in Ansys had thre...
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ژورنال
عنوان ژورنال: Materials Science and Engineering: A
سال: 2009
ISSN: 0921-5093
DOI: 10.1016/j.msea.2008.11.044