Problem with Honeycomb panels
Altair EmployeeHello everyone,
I have a problem when I perform my analysis in Hypermesh.
I'm beginner and I am working on honeycomb panels.
I have meshed my part with volume tetra and the material is 'Orthotropic', card image 'MAT 8'.
The card image is 'PSOLID' in the material's properties.
In the Hyperlaminate, I have listed the informations of Elastic modulus, Shear modulus, the density and the Poisson coefficient.
But When I launch OptiStruct solver I get some error (Error #1237 and #14) which tell me:
'CTRIA3 element number 1 references a missing property ID 1 or uses property of incorrect type for this element type.
Error #14 appeared total of 72185 times.'
I don't understand because in the properties, I assign my element with the material.
Could you explain me how I can do to solve these error and what I have forgotten please ?
Could you explain me too why I had the 'No mapping occured' message when I selected my loadcols ?
Thank you for your attention.
Maxime
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Answers
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Hi Maxime.Lab
MAT 8 is not compatible with PSOLID property. If you want to use solid element, try either MAT9 or MAT9 ORT.
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Thank you for your reply.
I can't use MAT 8 because it is just for 2D element only.
Where I can find MAT 9 ORT because i found MAT 9 only ? And what is the difference of between both ?
Thank you
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MAT9 and MAT9ORT are material models for anisotropic and orthotropic materials and both are compatible with only solid elements.
when MAT9ORT is used it is internally converted to MAT9 .
The difference will be in input of material parameters.
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Ok thank you.
I have another question:
When I want to create the 'load on geom', I choose my loadcollector and i have a message box which says me 'No mapping occured'.
Do you know how i can solve this problem ?
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Hi,
Looks like the FE (elements/nodes) entities are not associated with geometry.
Use Node Edit panel to associate (Geom>> Node Edit) to associate nodes to the surface/geometry and try again.
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