BCHANGE in SOL103?

Sometimes it might be useful to have more control about glued areas between two bcbodies in SOL103. In SOL101 and SOL400 I can use BCHANGE to achieve this but this option is not available in SOL103. My current workaround for SOL103 is to define additional bcbodies only containing the elements which should be glued. This is a lot of work and often leads to the following warnings in the f06 file because two bodies share the same nodes:

"warning: node 11764 belongs to bodies 28 33. for the contact algorithm it will belong to body 33 only."

Will the BCHANGE option or something similar become available for SOL103 in future releases of Nastran? Is there a smarter way to gain more control about glued regions in SOL103? Thanks for any suggestion!

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0 Benny Hill over 7 years ago

Hello Sanjay, thanks for your answer. My intention is not to use touching contact in SOL103. I am only looking for a way how I can control which areas between two bodies should be glued and which should not be glued (check attached picture). Thanks to the boundary search Nastran will glue all four faces of the bodies but I want only two of the four faces to be glued. How can I achieve this in Nastran without defining a additional body?
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0 Benny Hill over 7 years ago

Hello Sanjay, thanks for your answer. My intention is not to use touching contact in SOL103. I am only looking for a way how I can control which areas between two bodies should be glued and which should not be glued (check attached picture). Thanks to the boundary search Nastran will glue all four faces of the bodies but I want only two of the four faces to be glued. How can I achieve this in Nastran without defining a additional body?
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