Results 211 to 220 of about 44,921 (261)

Multiple crack weight for solution of multiple interacting cracks by meshless numerical methods

International Journal for Numerical Methods in Engineering, 2006
AbstractWe devise a multiple crack weight (MCW) method for the accurate and effective solution of strongly interacting cracks by meshless numerical methods. The MCW method constructs weight functions around cracks so that they simultaneously characterize all the cracks present in the single nodal domain of influence. This approach reduces the number of
Eli Turkel
exaly   +3 more sources

Multiple-cracked fatigue crack growth by BEM

Computational Mechanics, 1995
The dual boundary element method is applied to the two-dimensional linear elastic analysis of fatigue problem of multiple-cracked body. For each crack, the traction integral equation is applied on one surface of the crack, while the usual displacement integral equation is used simultaneously on the other. General multiple crack growth problem is solved
Yan, A. M., Nguyen-Dang, H.
openaire   +2 more sources

INTERACTION EFFECTS OF MULTIPLE CRACKS

17th Structures, Structural Dynamics, and Materials Conference, 1976
As a result of the physical and thermal tests on compressed cone to flat metallic contacts it is possible to predict the thermal conductance of this type of joint with confidence. Parameters required for these predictions include the shape of the deformed joint whilst loaded, and the true support pressure. The latter varies with the initial cone angle,
T.M. Hsu, J.W. Markham
openaire   +1 more source

Scattering by Multiple Crack Configurations

Journal of Applied Mechanics, 1988
A system of boundary integral equations is presented which governs the crack-opening displacements for two-crack configurations. The integral equations are highly singular and they cannot be solved directly by numerical methods. By the approach of this paper the higher order singularities are, however, reduced to integrable singularities, and the ...
Zhang, Ch., Achenbach, J. D.
openaire   +1 more source

On the linkup of multiple cracks

Engineering Fracture Mechanics, 1995
Abstract The coalescence or linkup of multiple cracks is considered in this paper. Moreover, two criteria for multiple crack linkup are proposed which are based on linear elastic models. Analytical predictions of multiple crack linkup are compared with experimental results from flat panel tests. The effect of stable tearing has been included in these
D.Y. Jeong, J.C. Brewer
openaire   +1 more source

Interaction of multiple cracks and formation of echelon crack arrays

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1991
AbstractFracturing of rock under compression is a product of a series of processes, including nucleation, growth, interaction and coalescence of multiple microcracks. The formation of echelon arrays of microcracks and macrocracks is one of the crucial rings in the processes.
Yijun Du, Atilla Aydin
openaire   +2 more sources

Multiple cracks and branch cracks in finite plane bodies

Mechanics Research Communications, 1991
Presentation d'une technique combinant la methode des elements frontieres avec une representation nouvelle «deplacement-discontinuite» de la fissure ...
Nengquan Liu, Nicholas J. Altiero
openaire   +1 more source

Three-dimensional fracture and fatigue crack propagation analysis in structures with multiple cracks

Computers and Structures, 2015
A procedure is presented for fatigue crack growth simulations of multiple cracks.Stress intensity factors are calculated using three-dimensional enriched elements.During simulations, models are re-meshed to reflect updated crack geometries.Results show excellent agreement when compared with data from the literature.The method can also handle multiple ...
Ali O Ayhan
exaly   +4 more sources

Crack instability in a multiple-cracked system

International Journal of Pressure Vessels and Piping, 1985
Abstract The paper analyses the behaviour of a solid containing two symmetrically situated deep cracks, and with tension of the small remaining ligament. The results are used to support the view that when a piping system fabricated from a ductile material, such as 304 stainless steel, contains more than one crack, then the presence of other cracks ...
openaire   +1 more source

Interacting multiple cracks with complicated crack surface conditions

International Journal of Fracture, 1996
In solving multiple cracks problems for the strong crack interactions, crack surfaces that are not always open even under remote tension loading, some crack surfaces may contact or even partially contact.
Han Xueli, Wang Tzuchiang
openaire   +1 more source