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Hello everyone,
I would like to know what is the main difference betweeen rbe2 and rbe3 1-d connector?
Sorry for the 'novice' question and thank you in advance
Hi,
RBE2 and RBE3 are rigid links in FEM used for load transfer. These elements in fact will not deform as they are considered to be infinitely rigid (diamond under atmospheric pressure for example even though it's not infinitely rigid) and the sole purpose of these elements is to transfer the loads between the grid points or nodes. RBE2 transfers the loads in such a way that all the slave (dependent) nodes have zero relative deformation after the load application. Whereas RBE3 transfers the load using weighted average of slave nodes(independent nodes) position.
Perhaps you will understand even better:
https://iberisa.wordpress.com/2015/10/13/rbe2-vs-rbe3-on-femap-with-nx-nastran/
https://community.altair.com/community?id=community_question&sys_id=2da60c7a1b2bd0908017dc61ec4bcb93
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