u3.01.00 Code_Aster mesh file description

Summary:

This file allows you to describe a Code_Aster mesh. It can be built by an automatic interface between a mesher and the code, but can also be written by hand. It contains:

• a possible title,

• a list of nodes with their coordinates,

• lists of meshes, each mesh is described by the list of nodes that defines its topology, and its orientation,

• node groups and mesh groups.

Note:

A concept of the type mesh, once read on the mesh file, can be enriched using Code_Aster operators with information that cannot currently be described in the mesh file. This concerns in particular static substructuring. In addition, it is now possible to create groups of knots or meshes during the study.

Table of Contents

• 1. Mesh file structure
• 2. Structure of a subfile
  • 2.1. The header
  • 2.2. List of information
  • 2.3. Sub-file FIN
• 3. List of keywords (subfile types)
• 4. The description of meshes
• 5. List of description formats
  • 5.1. Item Correspondence - Type FORTRAN
  • 5.2. FORMAT reading associated with the keyword
  • 5.3. Repeating the Format
• 6. Sub-file examples
  • 6.1. File from the IDEAS -Aster interface
  • 6.2. Example illustrating possible writing formats
  • 6.3. Example illustrating assignment by organized groups