An Equivalent Domain Integral Method for Three-Dimensional Mixed-Mode Fracture Problems
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Date: 02 Nov 2018
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Language: English
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ISBN10: 1730727352
ISBN13: 9781730727351
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Chapter 37 Stress Intensity Factor Determination for Three-Dimensional Crack Using the Displacement Discontinuity Method with Applications to Hydraulic Fracture Height Growth and Non-Planar The Kirchhoff and Mindlin plate theories are applied in this study to calculate the stresses and the energy release rates in delaminated orthotropic composite plates. A novel double-plate system is mode I and mixed-mode problems. This paper presents further development of the mesh-independent equivalent domain integral method with moving least squares approximation of integrands. In our algorithm of the equiv- alent domain integral method, the. J-integral components. J. 1. And. J. 2 Abstract-A general formulation of the equivalent domain integral (EDI) method for mixed-mode fracture problems in cracked solids is presented. The method is discussed in the context of a 3-D Abstract. In this paper, an equivalent domain integral (EDI) method and the attendant numerical algorithms are presented for the computation of a near-crack-tip field parameter, the vector J -integral, and its variation along the front of an arbitrary three-dimensional crack in a structural component.Account is taken of possible non-elastic strains present in the structure; in this case the Mixed-Mode Fracture Analysis of Orthotropic Functionally Graded Material Coatings Using Analytical and Computational Thermal Fracture Analysis of Orthotropic Functionally Graded Materials Using an Equivalent Domain Integral Approach, Eng. Fract. Three Dimensional Fracture Analysis of FGM Coatings Under Thermomechanical Loading results are compared with existing three-dimensional elastodynamic solutions. The adequacy of the method to investigate various three-dimensional dynamic fracture problems involving non-propagating and pro- pagating tensile cracks is illustrated, including crack growth along a plane of heterogeneous fracture mixed-mode crack problems in orthotropic functionally graded materials (FGMs) the equivalent domain integral especially tailored for orthotropic FGMs. Material; Stress intensity factor; Finite element method; Equivalent domain fracture mechanics under mechanical (Delale and dimensional problems) of the JГ. Read "Boundary element analysis of three-dimensional mixed-mode cracks via the interaction integral, Computer Methods in Applied Mechanics and Engineering" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. For mixed - mode fracture problems in three - dimensional solids, the general formulation of the equivalent domain integral (EDI) method is presented. The local l - integral is split into l1, l2, and l3 for the three modes of deformation. The method can be used as a post- processing subroutine in the SAPLI linear elastic finite element program. alternating method for elastic-plastic elastic-plastic alternating method in conjunction with the equivalent domain integral method provides reasonable values of the I-integral. 1 Computational methods for three dimensional problems of fracture. In: Atluri, S. N. (ed.): Computational methods in the mechanics of fracture. A Shape Design Sensitivity Approach for Two-Dimensional Mixed-Mode Fracture Analysis Under General Loading Tae Won Lee. An Equivalent Domain Integral Method in the Two-dimensional Analysis of Mixed Mode Crack Problems, An Equivalent Domain Integral Method for Three-dimensional Mixed Mode Fracture Problems, A variational technique has been developed to evaluate the static stress intensity factors of mixed mode problems with mesh free method in this paper. The stiffness is evaluated regular domain integrals and shape functions are determined both radial basis function (RBF) interpolation and moving least-square (MLS) method. The stress intensity factors are obtained two boundary integrals Get this from a library! An equivalent domain integral method for three-dimensional mixed-mode fracture problems. [K N Shivakumar; I S Raju; Langley Research Center.] The SGBEM-FEM alternating method suitable for the solution of elastic and elastic-plastic three-dimensional fracture mechanics problems is presented. The crack is modeled the symmetric Galerkin boundary element method (SGBEM), as a distribution of displacement discontinuities in Read "Mode decomposition of three-dimensional mixed-mode cracks via two-state integrals, International Journal of Solids and Structures" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. AN EQUIVALENT DOMAIN INTEGRAL METHOD IN THE TWO-DIMENSIONAL ANALYSIS OF MIXED MODE CRACK PROBLEMS I. S. RAJUf and K. N. SHIVAKUMAR Analytical Services and Materials, Inc., 107 Research Drive, Hampton, VA 23666, U.S.A. Abstractn equivalent domain integral (EDI) method for calculating -integrals for two- dimensional cracked elastic bodies is presented. An equivalent domain integral method for three-dimensional mixed-mode fracture problems. Author links open overlay panel K.N. Shivakumar I.S. Raju. Show more. Several pure and mixed-mode fracture problems were analyzed and results found to agree well with those available in the literature. An equivalent domain integral method for three-dimensional mixed-mode fracture problems. KN Shivakumar, IS Raju. Engineering fracture mechanics 42 (6), 935-959, 1992. 127: 1992: Three-dimensional finite-element simulation of fatigue crack growth and closure. An equivalent domain integral method in the two-dimensional analysis of mixed mode Mixed-mode J-integral method for analysis of 3D fracture problems using BEM R.H. Riga,b & M.H. Aliabadib a British Aerospace Airbus Ltd, Filton, Bristol BS99 7AR, UK b Damage Tolerance Division, Wessex Institute of Technology, Southampton S04 2AA, UK (Received 11 November 1992; revised version received 25 February 1993; accepted 3 March 1993) In this paper three-dimensional, mixed-mode Due to the collapse boundary in fracture problem, two jump terms arise in each BIE and In order to extract mixed mode SIFs, different techniques are developed. Trary three-dimensional crack, the `equivalent domain integral' method. An adaptive finite element method for analyzing two-dimensional and axisymmetric nonlinear elastic fracture mechanics problems with cracks is presented. The J-integral is used as a parameter to characterize the severity of stresses and deformation near a crack tip. The domain integral technique is utilized as the J-integral solution scheme with the 9-node degenerated crack tip elements. authors have suggested various approaches, including the equivalent domain integral [26] and the virtual crack growth method using specific elements near the crack front line [27-28]. This paper therefore discusses the implementation of a generalized J-integral method for three-dimensional media. An interaction integral method is described for extracting the T-stress distribution along the fronts of general, non-planar cracks in three dimensions. The three-dimensional auxiliary fields that are required in the method are defined extruding two-dimensional fields along the three-dimensional crack front. Read "Three-dimensional J-integral evaluation for cracks with arbitrary curvatures and kinks based on domain integral method for quadratic tetrahedral finite element, Engineering Fracture Mechanics" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertips. A boundary element method (BEM) implementation of the energy domain integral (EDI) methodology for the numerical analysis of three-dimensional fracture problems considering thermal effects is
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