New 43-line download utility:
- abaqus_download(): download Abaqus models from internet
- Uses environment variables: ABAQUS_DOWNLOAD_URL, ABAQUS_DOWNLOAD_DIR
- Checks if file already exists before downloading
- Supports dry-run mode for testing
- Required by AbaqusReader module for example model downloads
Provides utility for downloading Abaqus example models from documentation.
New 68-line surface element creation:
- create_surface_element(): create surface elements from solid element faces
- element_mapping: mapping table for element face → surface element topology
- Supports Tet4→Tri3, Tet10→Tri6, Hex8→Quad4, Hex20→Quad8, Wedge6→Quad4/Tri3
- Maps Abaqus surface definitions to JuliaFEM element types
- Required by abaqus_reader.jl for boundary condition application
Provides surface element extraction from Abaqus .inp file surface definitions.
New 347-line Abaqus model parser:
- Model, Mesh, Material, Elastic, Step, BoundaryCondition, OutputRequest types
- AbaqusReaderState: parsing state machine
- parse_model(): parse full ABAQUS .inp files (mesh + BCs + loads + steps)
- Keyword registration system integration
- Section parsing: SOLID_SECTION, MATERIAL, ELASTIC, STEP, BOUNDARY, CLOAD, DLOAD
- abaqus_read_model(): read complete model vs abaqus_read_mesh() for mesh only
- Required by AbaqusReader module for full model parsing
Provides complete Abaqus .inp file model parsing with boundary conditions and load steps.
New 24-line keyword registration system:
- register_abaqus_keyword(): register keywords for section parsing
- is_abaqus_keyword_registered(): check if keyword is registered
- Global registry for ABAQUS .inp file keywords
- Required by parse_model.jl for section parsing
Provides keyword registration infrastructure for AbaqusReader module.
- Removed unused imports (`add_node!`, `add_element_to_element_set!`, `add_node_to_node_set!`) from the `using ..JuliaFEM:` line
- Keep `Preprocess` re-exported for convenience
This reduces namespace pollution and lowers the chance of circular import issues; no functional changes expected.
New structure:
- src/io/io.jl: IO submodule definition and exports
- src/io/aster_reader.jl: Code Aster .med reader (ready for HDF5 extension)
Benefits:
- Clean separation of I/O code
- ABAQUS reader works with stdlib only
- Ready for package extensions (HDF5, LightXML)
- Easy to add new formats (VTK, Gmsh, etc.)
The IO submodule exports abaqus_read_mesh() to main JuliaFEM namespace.
Jukka Aho