caa a22 4500 467950083 CHVBK 20180322200725.0 cr unu---uuuuu 170328e19861101xx s 000 0 eng 10.1007/BF00553472 doi (NATIONALLICENCE)springer-10.1007/BF00553472 (NATIONALLICENCE)springer-10.1007/BF02431655 Predicting failure from the initiation stage of slow crack growth in polyethylene [Elektronische Daten] [Xici Lu, Norman Brown] The crack opening displacement against time was measured in linear polyethylene as a function of stress, notch depth, and temperature for three-point bending under plane strain conditions. The experimental conditions were accurately controlled so that the scatter in the rate of damage was within ±20%. Microscopic observations showed that the shape of the damaged zone was triangular for stresses less than one-half the yield point and that the length was predictable from measurements of the crack opening displacement. The initial rate of damage prior to crack growth was constant up to crack opening displacement = 15 to 25Μm. The entire shape of the crack opening displacement-time curve and the time to complete failure could be predicted from the initial damage rate. A theory based on the observed microcrazing is presented which explains the dependence of damage rate on stress intensity and microstructural parameters. Chapman and Hall Ltd., 1986 Lu Xici Department of Materials Science and Engineering, University of Pennsylvania, 19104, Philadelphia, Pennsylvania, USA aut Brown Norman Department of Materials Science and Engineering, University of Pennsylvania, 19104, Philadelphia, Pennsylvania, USA aut Journal of Materials Science Kluwer Academic Publishers 21/11(1986-11-01), 4081-4088 0022-2461 21:11<4081 1986 21 10853 https://doi.org/10.1007/BF00553472 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00553472 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Lu Xici Department of Materials Science and Engineering, University of Pennsylvania, 19104, Philadelphia, Pennsylvania, USA aut NATIONALLICENCE 700 1- Brown Norman Department of Materials Science and Engineering, University of Pennsylvania, 19104, Philadelphia, Pennsylvania, USA aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers 21/11(1986-11-01), 4081-4088 0022-2461 21:11<4081 1986 21 10853 NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02431655 text/html Onlinezugriff via DOI Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE NATIONALLICENCE NL-springer