rigid links or beams
- paco_espinola
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17 years 1 month ago #1148
by paco_espinola
rigid links or beams was created by paco_espinola
I want to traslate a model from nastran to salome.
The attach scrip works ok but I have rigid links and I do not know wich is the equivalent in aster.
Is there beams or similar elements in aster equivalent to rb2
elements
The attach scrip works ok but I have rigid links and I do not know wich is the equivalent in aster.
Is there beams or similar elements in aster equivalent to rb2
elements
- Joël Cugnoni
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17 years 1 month ago #1149
by Joël Cugnoni
Joël Cugnoni - a.k.a admin
www.caelinux.com
Replied by Joël Cugnoni on topic Re:rigid links or beams
Hello,
if you define 1D elements with 2 nodes in your mesh, you then be able to assign it a \"discrete\" spring formulation (model DIS_T in Aster) and impose a high stiffness to model a rigid element.
Aster can create purely rigid regions between nodes. For this you only need to define one or several set of nodes or elements to be linked in a rigid manner. This is done with the option LIAISON_SOLIDE of AFFE_CHAR_MECA.
Finally, you can also try to link dissimilar meshes with the command LIAISON_MAIL in AFFE_CHAR_MECA. To use this command, you will need a groud of nodes (slaves) and a group of elements (master). In 3D, the group of elements must contain 3D solid elements and in 2D (axi, plane stress / strain) it should be a set of 2D elements.
I hope that this will help you in translationg your Nastran model to Salome/Aster!!
Regards,
J.Cugnoni
if you define 1D elements with 2 nodes in your mesh, you then be able to assign it a \"discrete\" spring formulation (model DIS_T in Aster) and impose a high stiffness to model a rigid element.
Aster can create purely rigid regions between nodes. For this you only need to define one or several set of nodes or elements to be linked in a rigid manner. This is done with the option LIAISON_SOLIDE of AFFE_CHAR_MECA.
Finally, you can also try to link dissimilar meshes with the command LIAISON_MAIL in AFFE_CHAR_MECA. To use this command, you will need a groud of nodes (slaves) and a group of elements (master). In 3D, the group of elements must contain 3D solid elements and in 2D (axi, plane stress / strain) it should be a set of 2D elements.
I hope that this will help you in translationg your Nastran model to Salome/Aster!!
Regards,
J.Cugnoni
Joël Cugnoni - a.k.a admin
www.caelinux.com
Moderators: catux
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