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elements:bem2d
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Table of Contents
BEM2D
2D boundary element
Description
Boundary element using the “BEM” method in linear mechanical analysis.
A group of BEM boundary elements defines a region considered as an equivalent finite element.
Type: 60
Implemented by: X.C. Wang, 1987 - Last revision: A-M. Habraken, 1991
Files
Prepro: BEM2DA.F
Lagamine: BEM2DB.F
Input file
| Title (A4) | |
|---|---|
| TITLE | “BEM2D” in the first 5 columns |
| Control data (I5) | |
| NEFEQ | Number of equivalent finite elments |
Definition of an equivalent finite element
This section must be repeated NEFEQ times.
| Control data (8I5) | |
|---|---|
| LMATE | Material law - only the elastic material is accessible |
| NSUBE | Number of boundary BEM elements |
| NSUBD | Total number of nodes taken into account in the boundary elements (in case of a closed contour, do not count the first and last node twice) |
| NSIGP | Number of interior points where stresses should be computed |
| IFTRA | Index for the calculation of nodal traction at each step: = 1 Yes ≠ 1 No |
| INSOL | Index for the choice of fundamental solution (see explanation): = 0 Kelvin (finite domain) = 1 Kelvin (infinite domain) = 2 Melan (semi-infinite) |
| NRI | = 0 0 → No rotation = -1 -1 → Rotation during deformation; the code computes the two most distant points = I J → Rotation during deformation: I is the first node to define the angle of rotation; J is the second node to define the angle of rotation |
| NRJ | |
Fundamental solution
elements/bem2d.1563530569.txt.gz · Last modified: 2020/08/25 15:33 (external edit)
