Results 211 to 220 of about 465,067 (266)
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On energy release rates in Peridynamics
Journal of the Mechanics and Physics of Solids, 2020Abstract This work is concerned with the calculation of fracture energy release rates in Peridynamics. The existing crack growth criterion and the related damage model in Peridynamics, e.g. the critical bond stretch in the prototype micro-elastic brittle (PMB) material model, are based on the energy release rate of an idealized infinite crack model ...
Haicheng Yu, Shao-fan Li
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Energy Release and Rate of Energy Release
2021Gaseous, liquid, and solid substances containing elements such as carbon and hydrogen can chemically react with oxygen in the air and release energy.
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On Energy-Release Rates for a Plane Crack
Journal of Applied Mechanics, 1981Considered is a plane crack in a homogeneous, static stress field. The component of the Ji integral normal to the plane of the crack (J2) is shown not to be path-independent in the sense of the well-known J integral (≡ J1) parallel to the plane of the crack. The relation between the energy-release rate for rotation L and the integral J2 is established.
Golebiewska Herrmann, A., Herrmann, G.
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Conservation Laws and Energy-Release Rates
Journal of Applied Mechanics, 1973New path-independent integrals recently discovered by Knowles and Sternberg are related to energy-release rates associated with cavity or crack rotation and expansion. Complex-variable forms are presented for the conservation laws in the cases of linear, isotropic, plane elasticity.
Budiansky, B., Rice, J. R.
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On the application of energy release rates
Composites Part A: Applied Science and Manufacturing, 1997The limits of applicability of the substitution of strain energy for potential energy in energy release rate calculations for Griffith cracks are identified, a discussion notably absent from textbooks. It is also shown that the strain energy change is not adequate to predict the growth of a Griffith crack, and may actually be zero while the potential ...
R.B. Hall, N.J. Pagano
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On the Estimation of Energy Release Rates
Journal of Applied Mechanics, 1983The energy release rate associated with the Mode I and Mode III crack problems for an infinite, nonlinearly elastic, incompressible body are estimated. The calculation adopts an approximation that is a natural extension of the small-scale yielding concept to problems involving moderate levels of loading.
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Fracture patterns and the energy release rate of phosphorene
Nanoscale, 2016For phosphorene, the fracture patterns and crack orientation dependence of the energy release rate are different for armchair and zigzag directions, resulting from the puckered structure of phosphorene.
Ning, Liu +3 more
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Energy release rate and crack kinking
International Journal of Solids and Structures, 1981Abstract A closed form solution is presented for the energy release rate at the onset of kinking of a straight crack in an infinite elastic medium subjected to a predominantly Mode I loading. The solution is accurate to the second order of kink angle and is carried out by the method which models the kink as a continuous distribution of infinitesimal ...
Hayashi, K., Nemat-Nasser, S.
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Energy Release Rate in Piezoelectric Media
International Journal of Fracture, 1999First, some path-independent integrals for piezoelectric media are constructed by considering the gradient of the energy stored in deformation and electric field. Secondly, it is proved that one of the path-independent integrals represents the energy release rate when crack extension happens.
Shi Weichen, Zhen-Bang Kuang
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On the Evaluation of the Energy Release Rate in Edge Cracked Beams
Recent Patents on Mechanical Engineeringe, 2011In recent years, significant patents have been devoted to developing non-destructive techniques for damage identification in structures. A crack in a structural member induces a local flexibility which affects the dynamic and static behavior of the whole structure.
NOBILE, LUCIO, GENTILINI, CRISTINA
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