000202851 001__ 202851
000202851 005__ 20181203023640.0
000202851 022__ $$a0142-1123
000202851 037__ $$aARTICLE
000202851 245__ $$aFatigue life of individual composite specimens based on intrinsic fatigue behavior
000202851 260__ $$c1997
000202851 269__ $$a1997
000202851 336__ $$aJournal Articles
000202851 520__ $$aA method is presented to predict fatigue life which explicitly accounts for specimen specific damage histories and the statistical distribution of quasi-static tensile strengths. First a 'critical element' is identified as that portion of the composite which controls failure, and the stress on that element is monitored. Then a cumulative damage model based on the remaining strength of the critical element, is used to extract an 'intrinsic' S-N curve for the critical element fatigue response from the fatigue data and the stress history. Using unidirectional specimens, such an intrinsic S-N curve was derived, and subsequent fatigue predictions were vastly improved over the traditional S-N curve. Fatigue tests on (90 degrees/0 degrees)(s) crossply materials were then run and lives predicted based on the intrinsic S-N curve with no adjustable parameters. The agreement between experiment and prediction validates the method. This method may have application in real-time durability evaluation of individual composite components using real-time stiffness to continuously evaluate remaining life during service. (C) 1997 Elsevier Science Ltd.
000202851 6531_ $$acomposite
000202851 6531_ $$afatigue
000202851 6531_ $$alife prediction
000202851 700__ $$aHalverson, G.
000202851 700__ $$0246474$$aCurtin, W. A.$$g211624
000202851 700__ $$aReifsnider, K. L.
000202851 773__ $$j19$$q369-377$$tInternational Journal of Fatigue
000202851 909C0 $$0252513$$pLAMMM$$xU12614
000202851 909CO $$ooai:infoscience.tind.io:202851$$pSTI$$particle
000202851 937__ $$aEPFL-ARTICLE-202851
000202851 970__ $$ahalverson_fatigue_1997/LAMMM
000202851 973__ $$aOTHER$$rREVIEWED$$sPUBLISHED
000202851 980__ $$aARTICLE