5. C modeling#

5.1. Characteristics of modeling#

_images/1000000000000201000001660F44B3FB7F0E466F.png

Modeling DST (TRIA3)

  • The plate is located in the plane \(Y=0.5\)

  • Point \(A\) \((0.4;0.5;0.25)\)

  • Boundary conditions:

    • Side \(\mathrm{BC}\): - Side \(v=0\)

\(\mathrm{CD}\): \(v=0\)

  • Symmetry conditions: (local coordinate system)

    • Side \(\mathrm{AB}\): \(u={\theta }_{y}=0\)

  • Side \(\mathrm{AD}\): \(v={\theta }_{x}=0\)

5.2. Characteristics of the mesh#

Number of knots: 49

Number of meshes and types: 72 TRIA3

5.3. Tested sizes and results#

5.4. notes#

The components \(\mathrm{SIXX}\), \(\mathrm{SIYY}\), and \(\mathrm{SIYZ}\) are the average values of the two cells competing at points \(A\) and \(C\).

The difference obtained on \(\mathrm{SIXZ}\) is due to the difference in transverse shear modeling: in the reference, a transverse shear correction coefficient of 5/6 is used. In Code_Aster, we calculate the distribution of shear in the thickness, which is assumed to be parabolic in each layer.

The sign of \(\mathrm{SIXZ}\) is the opposite of that of the reference solution.

The other differences are probably due to the anisotropy of the triangular mesh.