caa a22 4500 467948534 CHVBK 20180405193739.0 cr unu---uuuuu 170328e20050101xx s 000 0 eng 10.1007/s10808-005-0043-3 doi (NATIONALLICENCE)springer-10.1007/s10808-005-0043-3 (NATIONALLICENCE)springer-10.1007/s10808-005-0012-x Modification of the fracture criterion for V-shaped notches (plane problem). Relationship between toughness and strength and structural parameters [Elektronische Daten] [V. Kornev, V. Kurguzov] A fracture criterion of the type of the Neuber-Novozhilov criterion is proposed to describe the fracture in the vicinity of the tip of a V-shaped notch under tensile and shear loading. In the proposed criterion, the limits of averaging of the stresses along the notch axis depend on the presence, location, and size of the initial defects in the material. The crystal lattice parameter of the initial material is chosen for the characteristic linear size. For a V-shaped notch subjected to tension and shear, simple equations are obtained that relate the stress intensity factors for the modified singularity coefficients, the singularity coefficients themselves, and the theoretical tensile and shear strengths of a single crystal of the material taking into account the damage to the material in the vicinity of the notch tip. The equations obtained allow a passage to the limit from a notch to a crack. It is shown that the classical critical stress intensity factor used in the strength analysis of cracked solids is not a material constant. MAIK "Nauka/Interperiodica”, 2005 fracture nationallicence brittle fracture criteria nationallicence crack nationallicence V-shaped notch nationallicence stress intensity factor nationallicence Kornev V. Lavrent'ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk aut Kurguzov V. Lavrent'ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk aut Journal of Applied Mechanics and Technical Physics Nauka/Interperiodica 46/1(2005-01-01), 85-93 0021-8944 46:1<85 2005 46 10808 https://doi.org/10.1007/s10808-005-0043-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10808-005-0043-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Kornev V. Lavrent'ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk aut NATIONALLICENCE 700 1- Kurguzov V. Lavrent'ev Institute of Hydrodynamics, Siberian Division, Russian Academy of Sciences, 630090, Novosibirsk aut NATIONALLICENCE 773 0- Journal of Applied Mechanics and Technical Physics Nauka/Interperiodica 46/1(2005-01-01), 85-93 0021-8944 46:1<85 2005 46 10808 NATIONALLICENCE 700 1- Kornev V. Siberian Division, Russian Academy of Sciences, Lavrent'ev Institute of Hydrodynamics, 630090, Novosibirsk aut NATIONALLICENCE 700 1- Kurguzov V. Siberian Division, Russian Academy of Sciences, Lavrent'ev Institute of Hydrodynamics, 630090, Novosibirsk aut NATIONALLICENCE 856 40 https://doi.org/10.1007/s10808-005-0012-x 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