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Solid/Shell elements

Valued Contributor
Valued Contributor

I have a model consisting of both shell and solid elements. In postprocessing, I only get stresses in the shell elements, but the solid elements have zero stress. Any idea what is the clue? Thanks for any help.

4 REPLIES 4

Re: Solid/Shell elements

Solution Partner Phenom Solution Partner Phenom
Solution Partner Phenom

Dearn Bernt,

Pay attention, you need to select the correct "output vector": when you plot stress result in FEMAP you can select PLATE top/bottom xxx stress (this is for 2-D Shell CQUAD4 & CTRIA elements) and SOLID xxx Stress (this is for 3-D CTETRA & CHEXA solid elements), ok?.

mixed-shell-solid.png

You can click in MULTIPLE CONTOUR VECTORS button and choose more than one output vector to plot together "simultaneously" both shell & plate stress results, enjoy!.

Best regards,
Blas.

Blas Molero Hidalgo, Ingeniero Industrial, Director
IBERISA • 48004 BILBAO (SPAIN)
WEB: http://www.iberisa.com
Blog Femap-NX Nastran: http://iberisa.wordpress.com/

Re: Solid/Shell elements

Valued Contributor
Valued Contributor

Thank you Blas. Things ar simple when you know how.

 

Bernt

Re: Solid/Shell elements

Siemens Phenom Siemens Phenom
Siemens Phenom

Just to elaborate on Blas' point a little for maybe other people who run into this problem.

 

In the Select PostProcessing Data dialog box, click Multiple Contour Vectors button on the right side.

Multiple Contours.png

 

In this dialog you will be able to specify up to three contour vectors to plot. 

Multiple Contours2.png

 

Now you can see Von Mises stress for both plates and solids.

Multiple Contours3.png

 

Re: Solid/Shell elements

Solution Partner Phenom Solution Partner Phenom
Solution Partner Phenom

Hello!,

To complement the great Troy comments, if you want to have in the same plot stress results in both SHELL TOP & BOTTOM together with solid vonMises stress then click in CONTOUR OPTIONS and select ELEMENTAL to plot stress results in elements, click OK, and next you can activate DOUBLE-SIDED PLANAR CONTOUR to have in the same plot both bottom & top shell stresses, OK?.

contour_options.png

double-sided_planar_contour.png

Best regards,
Blas.

Blas Molero Hidalgo, Ingeniero Industrial, Director
IBERISA • 48004 BILBAO (SPAIN)
WEB: http://www.iberisa.com
Blog Femap-NX Nastran: http://iberisa.wordpress.com/