validations:tr3_shell_hyperboloid

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision 		Previous revision
Last revision Both sides next revision
validations:tr3_shell_hyperboloid [2023/02/01 07:46]
Ali Baba [TR3 SHELL-MITC element hyperboloid validation] 		validations:tr3_shell_hyperboloid [2023/02/01 07:48]
Ali Baba [Validation data]
Line 58: Line 58:
 ^608 |3.73E-05 |7.63E-05 |-1.97E-06 |8.50E-05 |5.60E-05 |4.66E-05 |3.07E-05 |7.90E-05 |-7.00% | ^608 |3.73E-05 |7.63E-05 |-1.97E-06 |8.50E-05 |5.60E-05 |4.66E-05 |3.07E-05 |7.90E-05 |-7.00% |
  
-The maximum difference on the rotations is 70%. The differences on the rotations are larger than on the translations. But, as for the [[validations:qd4_shell_hyperboloid|QD4 SHELL element validation]] **we must be cautious about these results**. Indeed, **the Abaqus S3 element seems to have 6 degrees of freedom per node, while the MITC3 element implemented in SesamX has only 5 (no drilling rotation)**. Hence the S3 adds inevitably some terms on the rotational degrees of freedom.+The maximum difference on the rotations is 70%. The differences on the rotations are larger than on the translations. But, as for the [[validations:qd4_shell_hyperboloid|QD4 SHELL-MITC element validation]] **we must be cautious about these results**. Indeed, **the Abaqus S3 element seems to have 6 degrees of freedom per node, while the MITC3 element implemented in SesamX has only 5 (no drilling rotation)**. Hence the S3 adds inevitably some terms on the rotational degrees of freedom.
  
  
Line 96: Line 96:
 The maximum difference is 0.7%. **The stress values are close between Abaqus and SesamX**. The maximum difference is 0.7%. **The stress values are close between Abaqus and SesamX**.
  
-Similarly to the QD4 SHELL element, we notice a slight discrepancy between the Abaqus S3 element and the SesamX TR3 SHELL element. To go further you can consult this paper for a [[https://www.sciencedirect.com/science/article/abs/pii/S0045794917309550| thorough validation of the MITC3 element]] (from which the SesamX TR3 SHELL element is obtained).+Similarly to the QD4 SHELL-MITC element, we notice a slight discrepancy between the Abaqus S3 element and the SesamX TR3 SHELL-MITC element. To go further you can consult this paper for a [[https://www.sciencedirect.com/science/article/abs/pii/S0045794917309550| thorough validation of the MITC3 element]] (from which the SesamX TR3 SHELL-MITC element is obtained).
  
 ===== Validation data ===== ===== Validation data =====
  • validations/tr3_shell_hyperboloid.txt
  • Last modified: 2023/02/01 07:53
  • by Ali Baba