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Is it possible to use CTRIA6 in SOL106 with only geometrical nonlinearities?

Creator
Creator

Hello,

 

is it possible to use CTRIA6 element in SOL106 in which only geometrical nonlinearities are present?

If I used CTRIA6 with the PSHELL property in SOL106 I obtain the same results of the linear solution. Instred if I use CTRIA3 I obtain a nonlinear response.

Is it possible to use a higher order shell for geometric nonlinearities only?

 

2 REPLIES

Re: Is it possible to use CTRIA6 in SOL106 with only geometrical nonlinearities?

Phenom
Phenom
Well There is nothing in the QRG stating that you can't. but then using 2nd order elements in an NL analysis !
Production: NX9.0.3.4, NX10.0.2.6
Development: VB.NET (amateur level !)

Re: Is it possible to use CTRIA6 in SOL106 with only geometrical nonlinearities?

Siemens Phenom Siemens Phenom
Siemens Phenom

Element capabilities for SOL 106 are listed in the Basic Nonlinear Analysis User's Guide:

 

https://docs.plm.automation.siemens.com/tdoc/nxnastran/11/help#uid:index_bas_nonlinear:id483186:id48...

 

https://docs.plm.automation.siemens.com/tdoc/nxnastran/11/help#uid:index_bas_nonlinear:id483186:id48...

 

Note that CTRIA6 is only supported as a linear element or a fully nonlinear hyperelastic element. The only small strain shells that support geometric nonlinearity are CQUAD4 and CTRIA3.

 

Note that CQUAD4, CQUAD8, CTRIA3 and CTRIA6 will all be supported for both geometric and material nonlinear analysis (small strain) in SOL 401 in NX Nastran version 12.