Users:General FEM Analysis/Elements Reference/NURBS BRep Edge cord
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| − | + | == General Description == | |
| − | + | Coded and testing is in progress. | |
| + | |||
| + | === Element Type === | ||
| + | |||
| + | * This element provides a geometrically nonlinear, isogeometric spatial cable. | ||
| + | |||
| + | === Degrees of Freedom === | ||
| + | |||
| + | The element uses the translatoric degrees of freedom (''Disp_X'', ''Disp_Y'', ''Disp_Z'') of the control points of the master element. | ||
| + | |||
| + | === Parameter Description === | ||
| + | |||
| + | {| border="1" cellpadding="3" cellspacing="0" | ||
| + | |colspan="3" style="background:#efefef;"| Compulsory Parameters | ||
| + | |- | ||
| + | !Parameter | ||
| + | !Values, Default(*) | ||
| + | !Description | ||
| + | |- | ||
| + | !MAT | ||
| + | |EL-MAT ''int'' | ||
| + | |Linking to a material input block | ||
| + | |- | ||
| + | !INT_TYPE_NURBS_BREP_CHORD | ||
| + | |FULL, USER | ||
| + | |Control of integration type. | ||
| + | * FULL: p+1 Gauss points are used (p = polynomial degree of the NURBS patch) | ||
| + | * USER: the optional Parameter GAUSS_U defines the number of Gauss points | ||
| + | |- | ||
| + | !CROSS SECTION | ||
| + | |AREA = ''float'' | ||
| + | |area of the cross section | ||
| + | |- | ||
| + | !PRESTRESS | ||
| + | |PRESTRESS = ''float'' | ||
| + | |prestress of the cable element | ||
| + | |- | ||
| + | |colspan="3" style="background:#efefef;"| Optional Parameters | ||
| + | |- | ||
| + | !Parameter | ||
| + | !Values, Default(*) | ||
| + | !Description | ||
| + | |- | ||
| + | !GAUSS_U | ||
| + | |GAUSS_U = ''int'' | ||
| + | |Number of Gauss point per element. Must only to be defined when INT_TYPE_NURBS_BREP_CHORD = USER | ||
| + | |- | ||
| + | |} | ||
=== Example of a Complete Input Block === | === Example of a Complete Input Block === | ||
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EL-PROP 1 : NURBS_BREP_CHORD | EL-PROP 1 : NURBS_BREP_CHORD | ||
MAT= EL-MAT 1 | MAT= EL-MAT 1 | ||
| + | AREA = 1 | ||
| + | PRESTRESS = 4000 | ||
INT_TYPE_NURBS_BREP_CHORD = USER or FULL | INT_TYPE_NURBS_BREP_CHORD = USER or FULL | ||
GAUSS_U = 4 | GAUSS_U = 4 | ||
| Line 13: | Line 62: | ||
== Element Loading == | == Element Loading == | ||
| − | + | As the NURBS_BRep_Edge_Cord element is embedded into a master element, it can carry all loads which can be assigned to the master element: | |
| − | + | ||
| − | + | ||
| − | + | ||
| − | + | ||
== Benchmarks == | == Benchmarks == | ||
Latest revision as of 07:46, 23 October 2017
Contents |
General Description
Coded and testing is in progress.
Element Type
- This element provides a geometrically nonlinear, isogeometric spatial cable.
Degrees of Freedom
The element uses the translatoric degrees of freedom (Disp_X, Disp_Y, Disp_Z) of the control points of the master element.
Parameter Description
| Compulsory Parameters | ||
| Parameter | Values, Default(*) | Description |
|---|---|---|
| MAT | EL-MAT int | Linking to a material input block |
| INT_TYPE_NURBS_BREP_CHORD | FULL, USER | Control of integration type.
|
| CROSS SECTION | AREA = float | area of the cross section |
| PRESTRESS | PRESTRESS = float | prestress of the cable element |
| Optional Parameters | ||
| Parameter | Values, Default(*) | Description |
| GAUSS_U | GAUSS_U = int | Number of Gauss point per element. Must only to be defined when INT_TYPE_NURBS_BREP_CHORD = USER |
Example of a Complete Input Block
EL-PROP 1 : NURBS_BREP_CHORD MAT= EL-MAT 1 AREA = 1 PRESTRESS = 4000 INT_TYPE_NURBS_BREP_CHORD = USER or FULL GAUSS_U = 4
Element Loading
As the NURBS_BRep_Edge_Cord element is embedded into a master element, it can carry all loads which can be assigned to the master element:
Benchmarks
The main benchmark file in the Carat++-repository is
- '../examples/benchmark_examples/isogeometric/iga_formfinding_4point_with_trusses/cbm_4PointSailwTrusses.txt'.
References
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