caa a22 4500 465741045 CHVBK 20180323111809.0 cr unu---uuuuu 170327e19900101xx s 000 0 eng 10.1007/BF00018615 doi (NATIONALLICENCE)springer-10.1007/BF00018615 Lemaitre Jean Laboratoire de Mécanique et Technologie, (E.N.S. de Cachan/C.N.R.S./Université Paris 6), 61. Av. du Pr Wilson, 94230, Cachan, France aut Micro-mechanics of crack initiation [Elektronische Daten] [Jean Lemaitre] Prior to the crack initiation, damage is most often localized at a scale below the size of the classical representative volume element of the continuum mechanics. This allows the stress and strain analyses in a component to neglect the strain-damage coupling at macro-scale. At the micro-scale, this coupling plays a very important role which can be emphasized by a two scale element of an elastoplastic damaged micro-element embedded in an elastic or elastoplastic macro-element. The Lin-Taylor hypothesis of strain compatibility allows the determination of the damage at micro-scale by solving the coupled constitutive equations for a given macro-strain history. It is shown how this model may be cast in the form of a post-processor of a finite element code and how a simple damage law coupled with strain constitutive equations replicates the main features of ductile or creep crack initiation, low cycle and high cycle fatigue for the case of a three-dimensional state of stress. Kluwer Academic Publishers, 1990 International Journal of Fracture Kluwer Academic Publishers 42/1(1990-01-01), 87-99 0376-9429 42:1<87 1990 42 10704 https://doi.org/10.1007/BF00018615 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00018615 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Lemaitre Jean Laboratoire de Mécanique et Technologie, (E.N.S. de Cachan/C.N.R.S./Université Paris 6), 61. Av. du Pr Wilson, 94230, Cachan, France aut NATIONALLICENCE 773 0- International Journal of Fracture Kluwer Academic Publishers 42/1(1990-01-01), 87-99 0376-9429 42:1<87 1990 42 10704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer