International Journal for Numerical Methods in Engineering
SCOPUS (1969-2023)SCIE-ISI
0029-5981
1097-0207
Anh Quốc
Cơ quản chủ quản: John Wiley and Sons Ltd , WILEY
Lĩnh vực:
Numerical AnalysisEngineering (miscellaneous)Applied Mathematics
Các bài báo tiêu biểu
Gmsh: A 3‐D finite element mesh generator with built‐in pre‐ and post‐processing facilitiesAbstract Gmsh is an open‐source 3‐D finite element grid generator with a build‐in CAD engine and post‐processor. Its design goal is to provide a fast, light and user‐friendly meshing tool with parametric input and advanced visualization capabilities. This paper presents the overall philosophy, the main design choices and some of the original algorithms implemented i... ... hiện toàn bộ
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Element‐free Galerkin methodsAbstract An element‐free Galerkin method which is applicable to arbitrary shapes but requires only nodal data is applied to elasticity and heat conduction problems. In this method, moving least‐squares interpolants are used to construct the trial and test functions for the variational principle (weak form); the dependent variable and its gradient are continuous in t... ... hiện toàn bộ
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The method of moving asymptotes—a new method for structural optimizationAbstract A new method for non‐linear programming in general and structural optimization in particular is presented. In each step of the iterative process, a strictly convex approximating subproblem is generated and solved. The generation of these subproblems is controlled by so called ‘moving asymptotes’, which may both stabilize and speed up the convergence of the ...
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Thermodynamically consistent phase‐field models of fracture: Variational principles and multi‐field FE implementationsAbstract The computational modeling of failure mechanisms in solids due to fracture based on sharp crack discontinuities suffers in situations with complex crack topologies. This can be overcome by a diffusive crack modeling based on the introduction of a crack phase‐field. In this paper, we outline a thermodynam... ... hiện toàn bộ
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A class of mixed assumed strain methods and the method of incompatible modesAbstract A three‐field mixed formulation in terms of displacements, stresses and an enhanced strain field is presented which encompasses, as a particular case, the classical method of incompatible modes. Within this frame‐work, incompatible elements arise as particular ‘compatible’ mixed approximations of the enhanced strain field. The con... ... hiện toàn bộ
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On the use of isoparametric finite elements in linear fracture mechanicsAbstract Quadratic isoparametric elements which embody the inverse square root singularity are used in the calculation of stress intensity factors of elastic fracture mechanics. Examples of the plane eight noded isoparametric element show that it has the same singularity as other special crack tip elements, and still includes the constant strain and rigid body motio... ... hiện toàn bộ
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Cracking particles: a simplified meshfree method for arbitrary evolving cracksAbstract A new approach for modelling discrete cracks in meshfree methods is described. In this method, the crack can be arbitrarily oriented, but its growth is represented discretely by activation of crack surfaces at individual particles, so no representation of the crack's topology is needed. The crack is modelled by a local enrichment of the test and trial funct... ... hiện toàn bộ
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Reduced integration technique in general analysis of plates and shellsAbstract The solution of plate and shell problems by an independent specification of slopes and middle surface displacements is attractive due to its simplicity and ability of reproducing shear deformation. Unfortunately elements of this type are much too stiff when thickness is reduced. In an earlier paper a derivation of such an element was present... ... hiện toàn bộ
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Phương pháp phần tử hữu hạn mở rộng/tổng quát: Tổng quan về phương pháp và các ứng dụng của nó Dịch bởi AI Tóm tắt Bản tổng quan về phương pháp phần tử hữu hạn mở rộng/tổng quát (GEFM/XFEM), tập trung vào các vấn đề về phương pháp luận, được trình bày. Phương pháp này cho phép xấp xỉ chính xác các nghiệm có liên quan đến các điểm nhảy, gấp khúc, kỳ dị, và các đặc điểm không trơn toàn cục khác trong phần tử. Điều này được thực hiện bằng cách làm giàu không gian xấp xỉ đa ... ... hiện toàn bộ
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Analysis of thick and thin shell structures by curved finite elementsAbstract A general formulation for the curved, arbitrary shape of thick shell finite elements is presented in this paper along with a simplified form for axisymmetric situations. A number of examples ranging from thin to thick shell applications are given, which include a cooling tower, water tanks, an idealized arch dam and an actual arch dam with deformable founda... ... hiện toàn bộ
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