u3.12.01 Modelings DKT - DST - - Q4G - DKTG - Q4GG

Summary:

This document describes for the DKT - DST - Q4G - Q4G - DKTG - Q4GG models:

• the degrees of freedom carried by the finite elements that support modeling,

• the related support meshes,

• the loads supported,

• non-linear possibilities,

• test cases implementing the models.

They can be used for three-dimensional plate problems [R3.07.03] in linear mechanical analysis for all models and in non-linear material for DKT, DKTGet Q4GG models only. Their use for shell problems is commonly accepted considering that the plane of the element is similar to a facet tangent to the middle layer of the shell (attention, only plane facets are allowed).

Thermomechanical calculations are linked using the finite elements of thermal shells (see [U3.22.01]).

• 1. Discretization
  • 1.1. Degrees of freedom
  • 1.2. Support mesh for stiffness matrices
  • 1.3. Cargo support mesh
• 2. Assignment of characteristics
• 3. Supported loads
• 4. Nonlinear possibilities
  • 4.1. Law of behavior
  • 4.2. Deformations
• 5. List of available test cases