FE-Net


Different element types are developed to generate the FE-Net of the slab according to Grid-based approach for both triangular and rectangular elements and according to Delaunay's triangular generation for triangular elements.

User-friendly embedded program for mesh generation is developed. The essential features in this embedded program are:

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You can generate the FE-Net for square, rectangular and irregular slabs using 6 different types of nets, Figure B-5.

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You can generate the FE-Net for circular and ring slabs using 8 different types of nets, Figure B-6.

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You can represent an irregular slab with openings and arc boundaries using a refine mesh, Figure B-7.

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It is possible to use combined rectangular, quadratic and triangular finite elements at the same time for the slab, Figure B-8.

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It is possible to define reference points and lines on the slab, Figure B-9. Reference points and lines are used to define the positions of girders, supports, piles, etc on the slab. Each time that the user generates the mesh, nodes of the FE-Net are passed automatically through these references. This provides the flexibility to make changes in the finite element mesh without having to redefine the positions of girders, supports, piles, etc.

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It is possible to refine the mesh in a specified region such as around supports to present the concentration of stress, moment and settlement in this region, Figure B-10.

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It is possible to optimize the dimension of FE-Net by making all elements having nearly the same area using the option "smoothing the mesh".

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FE-Net can be displayed in separated elements, Figure B-11.

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Figure B-5 Generation type for square, rectangular and irregular slabs

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Figure B-6 Generation type for circular and ring slabs

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Figure B-7 Irregular slab with triangular finite elements

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Figure B-8 Irregular slab with combined rectangular, quadratic and triangular finite elements

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Figure B-9 Reference points and lines on the FE-Net

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Figure B-10 Refining the mesh around a specified node

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Figure B-11 FE-Net in separated elements

12 Enhancements in ELPLA 9.0