caa a22 4500 465751121 CHVBK 20180323111834.0 cr unu---uuuuu 170327e19900601xx s 000 0 eng 10.1007/BF02410250 doi (NATIONALLICENCE)springer-10.1007/BF02410250 Effect of notch-strain calculation method on fatigue-crack-initiation life predictions [Elektronische Daten] [A. Newport, G. Glinka] The effect of the notch-strain calculation method on fatigue-crack-initiation life predictions is discussed using the SAE keyhole specimen experimental data as a reference. The accuracy of the predictions is shown to be dependent on the definition of crack initiation. The suitability of the crack-initiation criterion accepted within the SAE program is examined by comparing the lives of keyhole specimens tested under constant amplitude loading with those of plain specimens subjected to the same strains as those measured at the keyhole specimen notch tip. Two sets of fatigue-crack-initiation life predictions are made using the local strain approach: one incorporating Neuber's rule and the other incorporating an equivalent strain-energy density method for predicting local notch-tip strains. Comparison with experimental results shows better agreement in the case of the equivalent strain-energy density method. Society for Experimental Mechanics, Inc., 1990 Newport A. Pell Frischmann Consulting Engineers Ltd., 5 Manchester Square, WC1, London, England aut Glinka G. Department of Mechanical Engineering, University of Waterloo, N2L 3GI, Waterloo, Ontario, Canada aut Experimental Mechanics Kluwer Academic Publishers 30/2(1990-06-01), 208-216 0014-4851 30:2<208 1990 30 11340 https://doi.org/10.1007/BF02410250 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02410250 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Newport A. Pell Frischmann Consulting Engineers Ltd., 5 Manchester Square, WC1, London, England aut NATIONALLICENCE 700 1- Glinka G. Department of Mechanical Engineering, University of Waterloo, N2L 3GI, Waterloo, Ontario, Canada aut NATIONALLICENCE 773 0- Experimental Mechanics Kluwer Academic Publishers 30/2(1990-06-01), 208-216 0014-4851 30:2<208 1990 30 11340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer