Journal of Applied Sciences1812-56541812-5662Asian Network for Scientific Information10.3923/jas.2008.3316.3327RahmanM.M. AriffinA.K. AbdullahS. NoorM.M. BakarR.A. MalequeM.A. 122008819This study describes the finite element based fatigue
life prediction of cylinder head for a two-stroke free piston linear engine
subjected to variable amplitude loading, applicable to electric power
generation. A set of aluminum alloys, cast iron and forged steel for cylinder
head are considered in this study. The finite element modeling and analysis
were performed utilizing the finite element analysis codes. The fatigue
life analysis was carried out using finite element based fatigue analysis
commercial codes. Fatigue stress-life approach was used when the piston
is subjected to variable amplitude at different loading conditions. The
effects of mean stress and sensitivity analysis on fatigue life are discussed.
From the results, it was shown that the Goodman mean stress correction
method is predicted more conservative (minimum life) results. It was found
to differ significantly the compressive and tensile mean stresses. The
compressive mean stress are beneficial however tensile mean stress detrimental
to the fatigue life. The effect of materials and components S-N was also
investigated and not found to give any large advantages, however the effect
of certainty of survival was found to give noticeable advantages and it
concluded that the 99.9% are fond to be design criteria. The proposed
technique is capable of determining premature products failure phenomena.]]>Achten, P.A.J., 19941994Arshad, W.M., P. Thelin, T. Bäckström and C. Sadarangani,20044010921100Felippa, C.A.,20082008Lee, Y.L. and D. Taylor,20052005Lee, Y.L., J. Pan, R.B. Hathaway and M.E. Barkey,20051st Edn.,Mikalsen, R. and A.P. Roskilly,20072723392352Mikalsen, R. and A.P. Roskilly,200828589600Mikalsen, R. and A.P. Roskilly20082817261733MSC. Fatigure, 20052005Rahman, M.M., A.K. Ariffin, N. Jamaludin and C.H.C. Haron,20064581102Rahman, M.M., A.K. Ariffin, S. Abdullah and N. Jamaludin,20073114Shigley, J.E., C.R. Mischke and R.G. Budynas,20047th Edn.,Somhorst, J.H.E. and P.A.J. Achten,19961996Tucker, L. and S. Bussa,19751975Zoroufi, M. and A. Fatemi,20042004