This test lets you check the bending/extension coupling in nonsymmetric stack composite plates and the traverse shear behavior in a thick plate. For this test, the reference is the mesh formed of linear hexahedron elements (HE8). You will use 2D meshes. 

Reference: 3D Model with HE8 element, computed with CATIA. 

SpecificationsGeometry Specifications

Material 1:


Material 2:


Mesh Specifications:


Restraints: 

Loads: 
The static analysis results correspond to the displacements Tx and Tz at End 2.
The buckling analysis is performed for this 30 N load case. The buckling coefficients for the lowest two modes, computed with CATIA, are presented in the table below:
Analysis Case 
Quantity 
Reference 
Computed Results 

Linear Quadrangle 
Parabolic Quadrangle 

Static Case 
Tx max [mm] 
0.027 
0.0277 
0.0281 
Tz max [mm] 
0.834 
0.834 
0.835 

Buckling Case 
Coefficient 1 
121.634 
121.197 
120.743 
Coefficient 2 
1126.56 
1095.34 
1079.94 
To Perform the Test:
The Bonded_blades_compression_QD8.CATAnalysis document presents a complete analysis of this case, computed with a mesh formed of parabolic quadrangle elements (QD8).
The Bonded_blades_compression_HE8.CATAnalysis document presents a complete analysis of this case, computed with a mesh formed of linear hexahedron elements (HE8).
To compute the mesh with linear quadrangle elements (QD4), proceed as follow:
Open the Bonded_blades_compression_QD8.CATAnalysis document.
Enter the Advanced Meshing Tools workbench.
In the specification tree, doubleclick the mesh part. The Global Parameters dialog box appears.
Select Linear as element type.
Compute the case in the Generative Structural Analysis workbench.