Results 111 to 120 of about 161,530 (168)

On strain energy release rates for interfacial cracks

KSME Journal, 1993
The bimaterial constant e is necessarily used in the interfacial crack problems. Some authors tried to neglect the effects of the bimaterial constant e. To investigate the effects of the bimaterial constant e, the individual strain energy release rates,G I * andG II
Seong Kyun Cheong, Oh Nam Kwon
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Strain energy release rates for turning cracks

Fibre Science and Technology, 1972
Abstract The ratio of strain energy release rates for propagation of a crack in its own plane and perpendicular to it has an important effect on the direction of propagation. This ratio is a function only of the relative values of the elastic constants of the material, and the mode of stressing of the crack. The ratio is determined by an experimental
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On the Energy Release Rate in Finite–Strain Elasticity

Mechanics of Advanced Materials and Structures, 2008
Griffith's fracture criterion describes in a quasistatic setting whether or not a pre-existing crack in an elastic body is stationary for given external forces. This fracture criterion can be reformulated in terms of the the energy release rate (ERR), which is the derivative of the deformation energy of the body with respect to a virtual crack ...
Dorothee Knees, Alexander Mielke
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Variation of strain energy release rate with plate thickness

International Journal of Fracture, 1973
An analytical model of a through-thickness crack in a statically stretched plate is presented in which the crack front stress state is permitted to vary in the direction of the plate thickness. The amplitude or intensity of this stress field can be made nearly constant over a major portion of the interior crack front which is in a state of plane strain.
G. C. Sih, R. J. Hartranft
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Calculating Strain Energy Release Rate in Cracked Orthotropic Beams

Journal of Thermoplastic Composite Materials, 1996
The total strain energy release rate of a homogeneous orthotropic cracked beam-like structure is calculated using Timoshenko's beam theory. The total strain energy release rate is modified by including the energy spent in the deformation of the beam near the crack tip.
R. K. Pandey, C. T. Sun
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Strain energy release rate formulae for 3D finite element

Engineering Fracture Mechanics, 1995
Abstract Three expressions for the strain energy release rate for three-dimensional singular and non-singular finite elements are derived based on Irwin's virtual crack-closure method. The strain energy release rate for the three modes of fracture mechanics can be expressed in terms of the nodal forces ahead of the crack front and the opening ...
G. De Roeck, M.M. Abdel Wahab
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Evaluation of strain energy release rates in delaminated laminates under compression

AIAA Journal, 1999
Variousapproachestothedetermination oftheenergyreleaseratesofcompressively loaded compositelaminates are critically reviewed. These are the J integral, crack-closure integrals, and the direct method, which involves integration of the load-end compression relationship.
Mark J. Johnson, Srinivasan Sridharan
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Delamination Strain Energy Release Rate in Carbon Fiber/Epoxy Resin Composites

Materials Science Forum, 2007
The paper reports on an experimental study of the Mode I interlaminar fracture of unidirectional carbon fibers/epoxy resin composites. Mode I delamination strain energy release rate GIC was determined in double cantilever beam (DCB) test, before and after gamma irradiation at various doses.
Gordić, Milan V., Djordjevic, I. M., Sekulić, Danijela R., Petrovic, Z. S., Stevanović, M. M.   +4 more
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Critical Strain Energy Release Rate of Broken Ply Composite Laminates

Journal of Reinforced Plastics and Composites, 1998
Ply breakage in laminated composites may be caused by impact load. Delamination usually precedes the failure of such broken ply laminates and it occurs at the interface of the broken and continuous plies. In the present work, an attempt has been made to find out the delamination initiation stress as well as critical strain energy release rate (Gc) for
Debabrata Chakraborty, B. Pradhan
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Hybrid experimental-numerical approach for determining strain energy release rates

Theoretical and Applied Fracture Mechanics, 1994
Abstract A new approach is presented for determining strain energy release rates using a hybrid experimental-numerical method. The deformation around a crack in a body under load is measured by moire interferometry and a finite element procedure is used to convert the displacement into crack closure parameters to calculate strain energy release rates.
C.Y. Poon, C. Ruiz
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