The extension of cracks in thin foils of copper, brass, and tantalum has been investigated for both monotonic and cyclic loading using optical microscopy and scanning electron microscopy. Crack growth in both tension and fatigue is found to occur primarily by a void coalescence mechanism, as ...
The extension of cracks in thin foils of copper, brass, and tantalum has been investigated for both monotonic and cyclic loading using optical microscopy and scanning electron microscopy. Crack growth in both tension and fatigue is found to occur primarily by a void coalescence mechanism, as previo...
Micro-mechanisms of crack-tip shielding associated with the growth of fatigue cracks in metalmatrix composites are examined with specific emphasis on the role of crack bridging by uncracked ligaments. Simple analytical models are developed for such bridging induced by both overlapping cracks and by cop...
Indeed, when discussing the growth of fatigue cracks in bridge steels the US Department of Transportation Federal Highway Administrations report [17] states: “The insignificance of steel type and weld metal on fatigue resistance greatly simplifies the development of fatigue design rules since it ...
This paper reviews the role of microstructure and environment on the path of fatigue cracks in a high purity Al-4.5 percent wt Zn-1.25 percent wt Mg alloy in the form of single crystals, bicrystals and polycrystals, and a commercial Al-Zn-Mg alloy type 7075 in three ageing-conditions. Cr...
In the S-N curve, the number of cycles at the knee point was much lower than that for crystalline metals. The fatigue crack initiation process observed by atomic force microscopy (AFM) showed that cracks were initiated at the bottom of shear steps just after their formation. 展开 关键词: ...
doi:10.1179/030716982803286359AtrensA.Taylor & FrancisMetal Science JournalAtrens, A. Initiation of fatigue cracks in duplex stainless steel X4CrMnNiMoN2664 in 4N NaCl at 80(C, pH = 2 and 7. Met. Technol. 1982, 9, 117-121. [CrossRef]...
In Glare the cracks due to fatigue loads propagate in the aluminium layers only, while the glass fibre/epoxy layers stay intact and bridge the crack, by tr... RC Alderliesten,JJ Homan 被引量: 4发表: 2003年 The Influence of Temperature on Crack Growth in Fibre Metal Laminates Language of...
Saffar S, Gouttebroze S, Zhang ZL (2014) Fracture analysis and distribution of surface cracks in multicrystalline silicon wafers. J Sol Energy Eng 136(2):021024 Shi G, Atkinson HV, Sellars CM, Anderson CW (1999) Application of the generalized Pareto distribution to the estimation of the size...
Microstructural fracture in metal fatigue 来自 Semantic Scholar 喜欢 0 阅读量: 37 作者:L Lawson,EY Chen,M Meshii 摘要: The growth rates of microstructurally short fatigue cracks often appear to show less sensitivity to length than would be expected on the basis of a relaxed microstructure. In ...