caa a22 4500 469123966 CHVBK 20180323133146.0 cr unu---uuuuu 170328e19920201xx s 000 0 eng 10.1007/BF00017338 doi (NATIONALLICENCE)springer-10.1007/BF00017338 Energy density approach for calculation of three-dimensional inelastic strain and stress at the crack tip in compact tension specimens of polycarbonate [Elektronische Daten] [S. Dhar, G. Cloud] An energy-based method is utilized for calculating elastic-plastic strains and stresses near fatigue crack tip in specimens of Merlon polycarbonate. The stress redistribution caused by the plastic yielding around the crack tip is taken into account so that theoretical crack tip strain is improved. The estimated values of crack tip strain based on an energy density approach are compared with experimental results obtained from an embedded grid moire technique and embedded strain gages. Large-scale yielding seems to dominate near the crack tip. In fact, the measured strain is in agreement with the elastic solution, which means, in reality, only small-scale yielding takes place near the crack tip. The strain in the mid-plane (plane strain) is found to be higher than in the surface plane (plane stress). The experimental and theoretical results are in good agreement. Kluwer Academic Publishers, 1992 Dhar S. Department of Metallurgy, Mechanics and Materials Science, Michigan State University, 48824, East Lansing, Michigan, USA aut Cloud G. Department of Metallurgy, Mechanics and Materials Science, Michigan State University, 48824, East Lansing, Michigan, USA aut International Journal of Fracture Kluwer Academic Publishers 53/3(1992-02-01), 229-248 0376-9429 53:3<229 1992 53 10704 https://doi.org/10.1007/BF00017338 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00017338 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Dhar S. Department of Metallurgy, Mechanics and Materials Science, Michigan State University, 48824, East Lansing, Michigan, USA aut NATIONALLICENCE 700 1- Cloud G. Department of Metallurgy, Mechanics and Materials Science, Michigan State University, 48824, East Lansing, Michigan, USA aut NATIONALLICENCE 773 0- International Journal of Fracture Kluwer Academic Publishers 53/3(1992-02-01), 229-248 0376-9429 53:3<229 1992 53 10704 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer