best way to apply point force for 3D solid elements?
best way to apply point force for 3D solid elements?
(OP)
Hi there!!
I am modeling a complex structure with 3D Solid elements in NASTAN . While in the analysis, when I am applying point loads at the desired nodes, some high stress values are seen in the nearby nodes.
Is there a better way of applying point loads so as to avoid these abnormal stress values in the adjacent nodes.
Would highly appreciate any suggestions views.
Abhi.
I am modeling a complex structure with 3D Solid elements in NASTAN . While in the analysis, when I am applying point loads at the desired nodes, some high stress values are seen in the nearby nodes.
Is there a better way of applying point loads so as to avoid these abnormal stress values in the adjacent nodes.
Would highly appreciate any suggestions views.
Abhi.





RE: best way to apply point force for 3D solid elements?
With NASTRAN use the RBE3 element, it is a powerful tool for distributing applied loads and mass in a model. Unlike the RBE2 elements, the RBE3 doesn’t add additional stiffness to your structure. Forces and moments applied to reference points are distributed to a set of independent degrees of freedom based on the RBE3 geometry and local weight factors.
Best regards,
Blas.
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Blas Molero Hidalgo
Ingeniero Industrial
Director
IBERISA
48011 BILBAO (SPAIN)
WEB: http://www.iberisa.com
Blog de FEMAP & NX Nastran: http://iberisa.wordpress.com/
RE: best way to apply point force for 3D solid elements?
Thanks for your suggestion. Will keep you posted once I get to try these RBE3 elements.
Thanks and regards,
Abhi