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AN ANALYSIS FOR THREE DIMENSIONAL CRACKS
Fatigue & Fracture of Engineering Materials & Structures, 1994Abstract— A new method of analysis is proposed for an infinite solid containing an embedded plane crack of arbitrary shape. The analysis is fundamentally based on the body force method, but proper expressions of the body force densities are introduced and the stress conditions of the crack surface are replaced by the resultant force conditions in order
M. ISIDA, H. TSURU, H. NOGUCHI
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Three‐dimensional analysis of thermally loaded cracks
International Journal for Numerical Methods in Engineering, 1993AbstractThe stress intensity factors for cracks in three‐dimensional, thermally stressed structures are computed by using the boundary element method. While many boundary and volume‐integral‐based formulations are available for the treatment of thermoelastic problems in solids, the present analysis is based on a recently developed boundary‐only ...
Raveendra, S. T. +2 more
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Three‐dimensional liquid transport in concrete cracks
International Journal for Numerical and Analytical Methods in Geomechanics, 2004AbstractCracks in concrete are measured in 3D by microfocus X‐ray computer tomography. The tomographic images are thresholded matching a characteristic of the measured crack attenuation profile. A methodology is proposed to convert the 3D measured voxel data into a network of parallel plates.
Carmeliet, J. +3 more
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Three-Dimensional Analysis of Laminates With Cross Cracks
Journal of Applied Mechanics, 1988An approximate 3-dimensional analysis to study the effects of a system of transverse and longitudinal matrix cracks in cross-ply laminates is given. The method considers a repeating unit cell containing three subcells in every one of which the displacement vector is expanded to second order.
Aboudi, J. +2 more
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On the Three-Dimensional Theory of Cracked Plates
Journal of Applied Mechanics, 1975This paper discusses a method for solving three-dimensional mixed-boundary-value problems which arise in elastostatics. Specifically, the method is applied to a plate of finite thickness which contains a finite, through the thickness, line crack. The analysis shows that (a) in the interior of the plate only the stresses σx, σy, σz, τxy are singular of ...
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Three-Dimensional Analysis of Cracking in a Multilayered Composite
Journal of Applied Mechanics, 1995The three-dimensional problem of a multilayered composite containing an arbitrarily oriented crack is considered in this paper. The crack problem is analyzed by the equivalent body force method, which reduces the problem to a set of singular integral equations.
Kuo, C. H., Keer, L. M.
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Three-Dimensional Slightly Nonplanar Cracks
Journal of Applied Mechanics, 1992Abstract Three-dimensional slightly nonplanar cracks are studied via a perturbation method valid to the first-order accuracy in the deviation of the crack shape from a perfectly planar reference crack. The Bueckner-Rice crack-face weight functions are used in the perturbation analysis to establish a relationship, within first-order ...
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Analysis of Three-Dimensional Cracks with Independent Crack Mesh
Solid State Phenomena, 2006In order to simulate the growth of arbitrarily shaped three-dimensional cracks, the finite element alternating method is extended. As the required solution for a crack in an infinite body, the symmetric Galerkin boundary element method formulated by Li and Mear is used.
Tae Soon Kim +4 more
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Boundary elements for three‐dimensional elastic crack analysis
International Journal for Numerical Methods in Engineering, 1987AbstractIn this paper 8‐node traction singular boundary elements are employed to represent displacement and traction variations in the vicinity of the crack front in three‐dimensional geometries. The numerical procedure suggested for evaluating the singular integrals extending over these special elements is described. The efficiency and accuracy of the
Luchi M. L, RIZZUTI, Sergio
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Three-Dimensional Cracks: An Introduction
1996In the previous chapters the solution of two-dimensional and axi-symmetric crack problems have been examined in detail by employing the technique of distributing strain nuclei (in the form of dislocations or dislocation dipoles). Although the two-dimensional crack models give a good approximation to crack geometries encountered, most defects or cracks ...
D. A. Hills +3 more
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