caa a22 4500 469125128 CHVBK 20180323133148.0 cr unu---uuuuu 170328e19920301xx s 000 0 eng 10.1007/BF00040852 doi (NATIONALLICENCE)springer-10.1007/BF00040852 On the autonomy of the process region [Elektronische Daten] [F. Sjöberg, P. Ståhle] An investigation of the autonomy of the process region at the tip of a crack is carried out. An elastic plastic linearly hardening material is assumed. A cohesive zone model with constant cohesive stress is chosen. The cohesive zone length is observed to decrease with decreasing hardening rates and increasing cohesive stresses. For a cohesive stress larger than about three times the yield stress the zone becomes extremely small for hardening rates relevant for e.g. structural steels, and for perfectly plastic materials it did not develop at all. The autonomy of the cohesive zone was found to extend to at least 1.65 times the load specified for linear fracture mechanics. A very accurate description of the state of the process region is given by the near region J-integral. Only a slight improvement is obtained by using the J-integral taken for a path outside the inelastic region instead of using the stress intensity factor. Kluwer Academic Publishers, 1992 Sjöberg F. Division of Solid Mechanics, Uppsala Institute of Technology, Uppsala, Sweden aut Ståhle P. Division of Solid Mechanics, Uppsala Institute of Technology, Uppsala, Sweden aut International Journal of Fracture Kluwer Academic Publishers 54/1(1992-03-01), 1-20 0376-9429 54:1<1 1992 54 10704 https://doi.org/10.1007/BF00040852 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00040852 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sjöberg F. Division of Solid Mechanics, Uppsala Institute of Technology, Uppsala, Sweden aut NATIONALLICENCE 700 1- Ståhle P. Division of Solid Mechanics, Uppsala Institute of Technology, Uppsala, Sweden aut NATIONALLICENCE 773 0- International Journal of Fracture Kluwer Academic Publishers 54/1(1992-03-01), 1-20 0376-9429 54:1<1 1992 54 10704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer