u3.13.09 2D_ DIS_T and 2D_ DIS_TR models_

Summary:

This document describes for 2D_ DIS_T, 2D_ DIS_TR models (cf. [R5.03.17]):

• 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.

2D_ DIS_T modeling allows the representation of discrete translation elements with one or two nodes.

2D_ DIS_TR modeling allows the representation of discrete elements of translation and rotation with one or two nodes.

They can be used for two-dimensional problems in linear or nonlinear mechanical analysis.

• 1. Discretization
  • 1.1. Degrees of freedom
  • 1.2. Support mesh for stiffness matrices
• 2. Assignment of characteristics
• 3. Supported loads
• 4. Nonlinear possibilities
  • 4.1. Law of behavior
  • 4.2. Deformations
• 5. Examples of implementation: test cases