FEM BILL OF MATERIALS

Builds a bill of materials from an LS-DYNA model. For every part it reports material class, section thickness, area, volume, mass and density; connection count, area and types (weld, rigid, adhesive, tied); detected features (holes, slots, slits); a geometric part class (panel, rail, wheel, tire, bracket, casting…); and the assembly it belongs to (body-in-white, front/rear suspension, bumper system, wheels & tires, powertrain, closures…). Optionally renders a per-part thumbnail in LS-PrePost.

When to use

Tagged: bom, bill_of_materials, lsdyna, parts, mass, connections, assembly, classification.

Inputs

Label ID Type Default Required Description
Model files input_files file The LS-DYNA model: the master deck plus its include files. Can be fed from a simulation’s files or an uploaded set.
Master file pattern main_file_pattern text   Optional substring to pick the master deck among the inputs (e.g. ‘main’ or ‘master’). Defaults to the first file.
Solver solver select lsdyna   Solver format of the model. LS-DYNA is currently supported.
Generate part thumbnails generate_thumbnails select no   When Yes, renders a per-part image in LS-PrePost and includes it as a thumbnail column (requires LS-PrePost on the server).
Include connections dataset include_connections select no   When Yes, also returns a Connections dataset: one row per connection found in the model (weld / bolt / clip / insert / rigid / adhesive) with the parts joined, centroid, footprint area, mass, volume and stiffness.
Include loads & boundary dataset include_loads select no   When Yes, returns a Loads & Boundary dataset listing each *LOAD_, *BOUNDARY_ and *INITIAL_ card with its target id.
Include parameters dataset include_parameters select no   When Yes, returns a Parameters dataset with every *PARAMETER name, value and how many times it is referenced.

Outputs

Label ID Type Description
Bill of Materials bom dataset One row per part with material, thickness, area, volume, mass, connections, features, geometric part class and assembly.
Connections connections dataset One row per connection (opt-in): type, joined parts, centroid, footprint area, mass, volume and stiffness.
Loads & Boundary loads dataset Opt-in: each load, boundary condition and initial condition with its target id.
Parameters parameters dataset Opt-in: every *PARAMETER name, value and reference count.
BOM Summary summary keyvalue Part count, total mass, and counts by assembly and material.
Part Count part_count scalar Number of parts in the model.

Disciplines

  • engineering.cae.preprocessing
  • platform.post_processing

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