Node Interaction in Mechanical, Part 4: Scoping Results to Nodes – PADT, Inc. – The Blog
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Thin and sharp edges bodies-fluid interaction simulation using cut-cell immersed boundary method
Please read and accept the terms and conditions and check the box to generate a sharing link. A topology optimization, based on a coupling method of finite element and meshless method, is proposed for continuum structure. A reasonable arrangement of the meshless domain can guarantee the accuracy of the meshless methods and meanwhile keep the computational efficiency of the finite element method. Besides, as the coupling method is adopted, the displacement boundary conditions are applied to finite elements nodes by standard finite element method.
New approaches for Delaunay triangulation and optimisation
A dual-level density approximant is carried out to approximate and interpolate a unified and continuous density field. An unstable nodes phenomenon is observed in the interface domain, leading to nonconvergence of the equilibrium iterations. A smooth blending function and an energy convergence criterion are used to circumvent the convergent difficulty. Three benchmark problems of topology optimization are given to demonstrate the effectiveness of the proposed approach. Research off-campus without worrying about access issues. Find out about Lean Library here.
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Topology optimization of structures with coupled finite element — Element-free Galerkin method. See all articles by this author Search Google Scholar for this author. Wenjie Ge. Xinxing Tong. Min Ye Min Ye. Article information. Article Information Volume: issue: 5, page s : Article first published online: January 17, ; Issue published: March 1, Received: August 28, ; Accepted: December 19, Abstract Full Text Abstract. Keywords Topology optimization , FE—EFG method , nodal density variables , sensitivity analysis , numerical instabilities.
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Tunnels buried deep within the earth constitute an important class geomechanics problems. Two numerical techniques used for the analysis of geomechanics problems, the finite element method and the boundary element method, have complementary characteristics for applications to problems of this type. The usefulness of combining these two methods for use as a geomechanics analysis tool has been recognized for some time, and a number of coupling techniques have been proposed.
However, not all of them lend themselves to efficient computational implementations for large-scale problems. This report examines a coupling technique that can form the basis for an efficient analysis tool for large scale geomechanics problems through the use of an iterative equation solver.
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