13. K modeling#

13.1. Characteristics of modeling#

Isotropic multilayer plate (5 layers in thickness). Triangular shell element DST.

The user coordinate system is confused with the orthotropy coordinate system.

_images/10000000000001E6000001988A1B6B37D25F7D1A.png

Boundary conditions:

DDL_IMPO

(GROUP_NO: AB, DX: 0. , DZ: 0. , DRY :0.)

(GROUP_NO: BC, DY: 0. , DZ: 0. , DRX :0.)

(GROUP_NO: CD, DX: 0. , DZ: 0. , DRY :0.)

(GROUP_NO: DA, DY: 0. , DZ: 0. , DRX :0.)

(GROUP_NO: O, DX: 0. , BY: 0. , DRX :0. , DRY :0. , DRZ :0.)

FORCE_ARETE

(GROUP_NO: AB MY:0.)

(GROUP_NO: BC MX:0.)

(GROUP_NO: CDMY:0.)

(GROUP_NO: BY MAX:0.)

13.2. Characteristics of the mesh#

Number of knots: 170

Number of meshes and type: 288 TRIA3

13.3. Tested sizes and results#

Identification

Point \(O\) \(\mathit{M134}\)

Layer 1

\({\sigma }_{\mathit{xx}}\), \({\sigma }_{\mathit{yy}}\),,,, \({\sigma }_{\mathit{xy}}\),,, \({\sigma }_{\mathit{xz}}\), \({\sigma }_{\mathit{yz}}\) on the bottom sheet

Layer 3

\({\sigma }_{\mathit{xx}}\), \({\sigma }_{\mathit{yy}}\),,,, \({\sigma }_{\mathit{xy}}\),,, \({\sigma }_{\mathit{xz}}\), \({\sigma }_{\mathit{yz}}\) on middle sheet

Layer 5

\({\sigma }_{\mathit{xx}}\), \({\sigma }_{\mathit{yy}}\),,,, \({\sigma }_{\mathit{xy}}\),,, \({\sigma }_{\mathit{xz}}\), \({\sigma }_{\mathit{yz}}\) on top sheet

Displacement

\(\mathit{DZ}\)

Point \(\mathit{B1}\) \(\mathit{M122}\)

Layer 1

\({\sigma }_{\mathit{xx}}\), \({\sigma }_{\mathit{yy}}\),,,, \({\sigma }_{\mathit{xy}}\),,, \({\sigma }_{\mathit{xz}}\), \({\sigma }_{\mathit{yz}}\) on the bottom sheet

Layer 3

\({\sigma }_{\mathit{xx}}\), \({\sigma }_{\mathit{yy}}\),,,, \({\sigma }_{\mathit{xy}}\),,, \({\sigma }_{\mathit{xz}}\), \({\sigma }_{\mathit{yz}}\) on middle sheet

Layer 5

\({\sigma }_{\mathit{xx}}\), \({\sigma }_{\mathit{yy}}\),,,, \({\sigma }_{\mathit{xy}}\),,, \({\sigma }_{\mathit{xz}}\), \({\sigma }_{\mathit{yz}}\) on top sheet