caa a22 4500 465742114 CHVBK 20180323111811.0 cr unu---uuuuu 170327e19900601xx s 000 0 eng 10.1007/BF00035089 doi (NATIONALLICENCE)springer-10.1007/BF00035089 An application of viscoelastic fracture criteria to steady crack propagation in a polymeric material under fixed deformation [Elektronische Daten] [R. Frassine, A. Pavan] Tensile stress relaxation and stable crack growth under fixed tensile deformation over an extended range of crack speeds were measured on a flexible thermosetting epoxy resin. The experimental results are analysed and compared with the predictions of two theoretical models of fracture kinetics in viscoelastic media, based on different approaches: one theory, developed by Schapery, postulates a criterion of material failure local to the crack tip; the second theory, evolved by Christensen, extends the overall statement of the conservation of energy to systems that dissipate energy due to viscoelastic effects. The observed behaviour is in qualitative agreement with the theoretical predictions. Quantitative discrepancies, however, call for further theoretical refinements. Kluwer Academic Publishers, 1990 Frassine R. Dipartimento di Chimica Industriale e Ingegneria Chimica "G.Natta”, Politecnico di Milano, P.za L.Da Vinci, 32, 20133, Milano, Italy aut Pavan A. Dipartimento di Chimica Industriale e Ingegneria Chimica "G.Natta”, Politecnico di Milano, P.za L.Da Vinci, 32, 20133, Milano, Italy aut International Journal of Fracture Kluwer Academic Publishers 43/4(1990-06-01), 303-317 0376-9429 43:4<303 1990 43 10704 https://doi.org/10.1007/BF00035089 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00035089 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Frassine R. Dipartimento di Chimica Industriale e Ingegneria Chimica "G.Natta”, Politecnico di Milano, P.za L.Da Vinci, 32, 20133, Milano, Italy aut NATIONALLICENCE 700 1- Pavan A. Dipartimento di Chimica Industriale e Ingegneria Chimica "G.Natta”, Politecnico di Milano, P.za L.Da Vinci, 32, 20133, Milano, Italy aut NATIONALLICENCE 773 0- International Journal of Fracture Kluwer Academic Publishers 43/4(1990-06-01), 303-317 0376-9429 43:4<303 1990 43 10704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer