Results 241 to 250 of about 968,727 (292)
Some of the next articles are maybe not open access.
Unified Tensile Fracture Criterion
Physical Review Letters, 2005We find that the classical failure criteria, i.e., maximum normal stress criterion, Tresca criterion, Mohr-Coulomb criterion, and von Mises criterion, cannot satisfactorily explain the tensile fracture behavior of the bulk metallic glass (BMG) materials.
Z F, Zhang, J, Eckert
openaire +2 more sources
Fracture Criterion for Fracture Mechanics of Magnets
Chinese Physics Letters, 2003The applicability and limitation of some fracture criteria in the fracture mechanics of magnets are studied. It is shown that the magnetic field intensity factor can be used as a fracture criterion when the crack in a magnet is only affected by a magnetic field.
Pan Hao, Yang Wen-Tao
openaire +1 more source
A fabric-dependent fracture criterion for bone
Journal of Biomechanics, 1999A fracture criterion for bone tissue is proposed. Bone material is considered to be anisotropic and its properties are described by invoking the concept of directional variation of porosity. The fracture criterion is expressed as a scalar-valued function of the stress tensor and it incorporates an orientation-dependent distribution of compressive ...
S, Pietruszczak, D, Inglis, G N, Pande
openaire +2 more sources
An experimental criterion of fracture. The Det.-criterion
Soviet Materials Science, 1993From this study is concluded that for various crack problems, the Det.-criterion of fracture gives theoretical results which are agreed with the experimental results. The interest in this study is that the distribution of the determinant of the stress tensor is calculated experimentally from isochromatic- and isopachic-fringe patterns and so, the ...
openaire +1 more source
Polymer Engineering & Science, 1964
AbstractDupre's theory that work of rupture equals increase in surface energy, and Griffith's hypothesis (based upon Dupre's that a crack propagates when strain energy decrease equals or exceeds work required to creat two new surfaces are shown to be incorrect.
openaire +1 more source
AbstractDupre's theory that work of rupture equals increase in surface energy, and Griffith's hypothesis (based upon Dupre's that a crack propagates when strain energy decrease equals or exceeds work required to creat two new surfaces are shown to be incorrect.
openaire +1 more source
A Fracture toughness criterion for concrete
Engineering Fracture Mechanics, 1985Abstract Many have attempted to calculate the fracture toughness of concrete in Mode I by testing notched beam specimens. It has been observed that when K I c is calculated from the measured values of the maximum load, the initial notch length and using the formulas developed from LEFM, its value is dependent on the dimensions of the ...
Y.S. Jenq, S.P. Shah
openaire +1 more source
Griffith Fracture Criterion and Concrete
Journal of the Engineering Mechanics Division, 1971The original Griffith fracture criteria was developed to describe the rapid extension of a crack in a homogeneous elastic body. To check the applicability of the Griffith theory to portland cement systems which are neither elastic nor homogeneous, specimens of hardened cement paste, mortar and concrete made with normal and lightweight aggregates, and ...
Surendra P. Shah, Fred J. McGarry
openaire +1 more source
A new criterion for fracture initiation
Engineering Fracture Mechanics, 1995Abstract A new fracture initiation criterion is proposed in this paper which agrees with the results obtained by Theocaris and Andrianopoulos [ Engng Fracture Mech. 16 , 425–432 (1982)] for the case of uniaxial, biaxial and shear loading at infinity.
UKADGAONKER, VG, AWASARE, PJ
openaire +2 more sources
Prediction of Fracture Toughness by Local Fracture Criterion
1990Incorporation of micromechanistic criteria of failure to analytical or numerical crack tip stress and strain solutions, known as the RKR (Ritchie, Knott, and Rice) model, derives a certain relation between the fracture toughness and flow/fracture properties of materials.
T Miyata +4 more
openaire +1 more source
Thermodynamics and the griffith criterion for brittle fracture
International Journal of Solids and Structures, 1979Abstract The Griffith criterion for fracture, considered within the framework of nonlinear thermoelasticity, is shown to be a necessary condition for crack initiation, provided the underlying strain energy is properly interpreted, and provided the initial temperature is continuous at the crack tip.
openaire +1 more source