u3.33.01 3D and PLAN models of the ACOUSTIQUE phenomenon

Summary:

This document describes for 3D models and PLAN:

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

• the related support meshes,

• the materials and loads supported,

• calculation options for elementary matrices and post treatments,

• non-linear possibilities as well as fracture mechanics options if they exist.

The 3D models and PLAN (Phenomenon: ACOUSTIQUE) correspond to acoustic finite elements in pressure formulation (cf. [R4.02.01]). 3D modeling has solid support meshes, modeling PLAN has flat support meshes.

• 1. Discretization
  • 1.1. Degrees of freedom
  • 1.2. Support mesh for stiffness matrices
  • 1.3. Cargo support mesh
• 2. Meaning of symbols
• 3. Supported materials
• 4. Supported loads
• 5. Nonlinear possibilities
• 6. Elementary matrix calculations
• 7. Post-processing of the calculation
  • 7.1. Option CALC_CHAMP