17 results for “fatigue-life”

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Research ArticleOpen accessIn the abstractAnalytic and Nonlinear Prognostic for Vehicle Suspension SystemsAbdo Abou Jaoude, Khaled El-TawilPredicting Remaining Useful Lifetime (RUL) of industrial systems becomes currently an important aim for industrialists knowing that the expensive failure can occur suddenly. As the classical strategies of maintenance are not efficient and practical because they neglect the evolving product state and environment, the recent prognostic approaches try to fill this gap. This approach shows to be important in ensuring … …American Journal of Engineering and Applied Sciences, Vol. 6, Issue 1 · 23 Feb 2013 · 7,526 accessesView PDF Cite

Research ArticleOpen accessIn the abstractNutritional Supplements and its Effect on Quality of Life and SleepSara Sarrafi Zadeh, Khyrunnisa BegumProblem statement: Inadequate sleep has been recognized as a risk factor for poor health status. Mental stress, body pains, melatonin deficiency, late night awakening disturbing the body clock are triggers for poor quality of sleep and fatigue. Fatigue due to insomnia is a major cause for poor quality of life. Evidences suggest certain nutrients to exert profound influence on quality … …Current Research in Medicine, Vol. 2, Issue 2 · 1 Dec 2011 · 9,260 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEffect of Cycle Duration and Phasing on Thermomechanical Fatigue of Dog-Bone Specimens Made form SteelAchegaf Zineb, Khamlichi Abdellatif, Francisco Mata CabreraProblem statement: Lifetime of standard dog-bone specimens made form steel as affected by phasing between thermal cycles and strains cycles and by cycle duration in thermomechanical fatigue is assessed under various conditions of loading. Approach: The methodology used was based on finite element post-processing analysis by specialized fatigue software package that takes into account coupling of damage from three primary … …American Journal of Engineering and Applied Sciences, Vol. 3, Issue 4 · 30 Nov 2010 · 7,700 accessesView PDF Cite

Research ArticleOpen accessIn the abstractRelaxation of Residual Stress Part 2: Relaxation of Stage 2Omar Suliman Zaroog, Aidy Ali, B.B. Sahari, Rizal ZahariProblem statement: Compressive residual stress induced by surface treatment such as shot peening increased component’s fatigue life. However the initial induced residual stresses relax during component operating life and it is important to consider the relaxation in the design. Approach: In this study, a 2024-T351 aluminum alloy specimens were shot peened into three shot peening intensities condition to induce compressive … …American Journal of Engineering and Applied Sciences, Vol. 2, Issue 4 · 31 Dec 2009 · 8,002 accessesView PDF Cite

Research ArticleOpen accessIn the abstractDurability Assessment of Cylinder Block for Two Stroke Free Piston Linear Engine using Random LoadingM. M. Rahman, A. K. Ariffin, S. Abdullah et al.This research presents the durability assessment of cylinder block for a two-stroke free piston engine using narrow band approach. The life prediction results are worthy for improving the component design at the very early developing stage. This approach is adequate for periodic loading, however, requires very large time records to accurately describe random loading processes. Fatigue damage in conventionally determined … …American Journal of Applied Sciences, Vol. 6, Issue 4 · 30 Apr 2009 · 7,455 accessesView PDF Cite

Research ArticleOpen accessIn the abstractLaboratory Diameteral Fatigue Performance of Stone Matrix Asphalt with Cellulose Oil Palm FiberRatnasamy Muniandy, Bujang B.K. HuatStone Matrix Asphalt (SMA) is a gap-graded mix that is gaining popularity worldwide. Generally, gap graded mixes are thought to be weak in fatigue resistance. In this study, cellulose fibers were pre-blended in PG64-22 binder with fiber proportions of 0.2%, 0.4%, 0.6%, 0.8% and 1.0% by weight of aggregates. The fiber-modified binder showed improved rheological properties and showed that the … …American Journal of Applied Sciences, Vol. 3, Issue 9 · 30 Sep 2006 · 8,984 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSurface Properties of Cell-treated Polyethylene TerephthalateBing Shi, Hong Liang, Thomas B. Kuhn, Lawrence K. DuffyThe materials used in artificial joints undergo degradation through fatigue and corrosive wear in human body. The lifetime for well-designed artificial joints like hip joints is at most 12 years and a patient will usually have two total joint replacements during his/her lifetime. Tissue engineering, an alternative to total joint implantation, is the replacement of damaged tissue with the tissue … …American Journal of Biochemistry and Biotechnology, Vol. 2, Issue 4 · 31 Dec 2006 · 6,706 accessesView PDF Cite