Shell offset in Nastran and Abaqus
Shell offset in Nastran and Abaqus
(OP)
When ZOFFS is positive, the shell is above the grid plane and
when ZOFFS is negative, the shell is below the grid plane?
When Abaqus offset is negative, the shell is above the grid plane and when it is positive, the shell is below the grid plane?
Is this correct or is it the other way around?
Please help I'm confused.
when ZOFFS is negative, the shell is below the grid plane?
When Abaqus offset is negative, the shell is above the grid plane and when it is positive, the shell is below the grid plane?
Is this correct or is it the other way around?
Please help I'm confused.





RE: Shell offset in Nastran and Abaqus
RE: Shell offset in Nastran and Abaqus
RE: Shell offset in Nastran and Abaqus
In NX Nastran you can offset the CQUAD4, CQUAD8, CTRIA3, CTRIA6, CQUADR and CTRIAR elements relative to the mean plane of their connected grid points.
The orientation of the element coordinate system is determined by the order of the connectivity for the grid points. The element z-axis, often referred to as the positive normal, is determined using the right-hand rule. Therefore, if you change the order of the grid points connectivity, the direction of this positive normal also reverses.
Best regards,
Blas.
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Blas Molero Hidalgo
Ingeniero Industrial
Director
IBERISA
48011 BILBAO (SPAIN)
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RE: Shell offset in Nastran and Abaqus