When considering the effect of inclusions on fatigue life, size is well recognized. However, many these studies overlooked or decoupled from shape features. Therefore, in this study, influence characteristics with 3 equivalent sizes 26.6 ?m, 13.3 and 4.2 ?m very high cycle life high-strength steels investigated based a microstructure-sensitive modeling approach, residual stresses. A parameter, ...

Life time of electronic products is often limited by competing failure mechanisms brought on by the product’s use and its surrounding environment. Solder interconnect failure is a known life limiting failure mechanism that is induced by repeated temperature excursions. Thermal fatigue reliability of solder is conventionally assessed by simple temperature cycling tests, which apply a constant te...

this paper reviews the current literature examining the pervasive symptom of fatigue experienced in three of the most common degenerative neurological conditions: multiple sclerosis (ms), parkinson’s disease (pd) and post-polio syndrome (pps). the existing literature can be considered under four headings definition and prevalence, type, cause, impact of fatigue. fatigue is a common symptom in d...

Abstract Additive manufacturing (AM) processes create material directly into a functional shape. Often the properties vary with part geometry, orientation, and build layout. Today, trial-and-error methods are used to generate property data under controlled conditions that may not map entire range of geometries over part. Described here is development modeling tool enabling prediction performanc...