ISO 10303-104-2000 cor2-2014 PDF

Full title and description

ISO 10303-104:2000/Cor 2:2014 — Industrial automation systems and integration — Product data representation and exchange — Part 104: Integrated application resource: Finite element analysis — Technical Corrigendum 2. This document is a technical corrigendum that amends ISO 10303-104:2000 to correct specific technical items in the finite element analysis integrated application resource.

Abstract

This corrigendum provides targeted corrections and clarifications to the EXPRESS schemas, function definitions and schema identifiers used by ISO 10303-104 (the STEP integrated application resource for finite element analysis). The corrections improve the precision of node and element function definitions, correct variable value type classifications for certain tensor variables, and update schema/document identifiers to avoid ambiguity in implementations.

General information

• Status: Published (Technical Corrigendum).
• Publication date: July 2014 (Edition 1 — Technical Corrigendum 2 to ISO 10303-104:2000).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 25.040.40 — Industrial process measurement and control / product data and industrial data.
• Edition / version: Edition 1 (Corrigendum 2 to the 2000 edition).
• Number of pages: 1 (corrigendum cover/update document as listed by ISO).

Scope

This corrigendum applies to ISO 10303-104:2000 and targets the finite element analysis (FEA) integrated application resource within the ISO 10303 STEP family. It corrects EXPRESS definitions and function implementations used to describe finite element models, analysis control and results, ensuring that element node requirements, tensor typing for 2D/3D variables, and schema/document identifiers are unambiguous for implementers exchanging FEA data. For the baseline scope of Part 104 (what the part models and exchanges), see the main Part 104 text (FEA input/output models, control information and result schemas).

Key topics and requirements

• Corrections to EXPRESS functions that determine required node counts for 2D and 3D finite elements (e.g., required_2d_nodes, required_3d_nodes) to ensure fully qualified references and correct behavior for different element shapes and polynomial orders.
• Correction of variable value type classification for certain surface tensor variables (for example ensuring 2D surface tensor variables return the appropriate SYMMETRIC_TENSOR2_2D type rather than a 3D type).
• Updates to schema identifiers and document object identifiers in clause B to reduce ambiguity when referencing schemas and document objects in implementations and conformance tests.
• Maintains alignment with the overall STEP modular architecture and with related EXPRESS resources/schemas used by application protocols that rely on FEA resources.

Typical use and users

Engineers, simulation tool vendors, CAD/CAE integrators, data exchange developers and organizations implementing STEP-based data exchange for finite element models use this corrigendum as part of maintaining conformance to ISO 10303-104. It is relevant to teams responsible for STEP exporters/importers, FEA preprocessing/postprocessing, digital data archives and those implementing or validating EXPRESS schemas and SDAI/STEP-XML representations.

Related standards

ISO 10303-104 is one part of the ISO 10303 (STEP) family. Closely related parts and resources include ISO 10303-1 (overview and principles), other integrated resources (for geometry, topology, materials, tensors, etc.), and application protocols that consume FEA resources. Implementers commonly reference STEP parts such as Part 21 (STEP-File), Part 28 (STEP-XML), Part 11 (EXPRESS) and other IR/AIC parts that interact with Part 104.

Keywords

ISO 10303, STEP, Part 104, finite element analysis, FEA, integrated application resource, EXPRESS, corrigendum, data exchange, simulation, tensor types.

FAQ

Q: What is this standard?

A: It is ISO 10303-104:2000/Cor 2:2014, a technical corrigendum to Part 104 of the ISO 10303 (STEP) family that provides corrections and clarifications for the finite element analysis integrated application resource.

Q: What does it cover?

A: The corrigendum fixes specific EXPRESS schema items, function definitions and schema/document identifiers used by the Part 104 resource (FEA models, analysis control and results), improving correctness and interoperability for FEA data exchange. It does not redefine the overall scope of Part 104 but makes technical corrections to the published text.

Q: Who typically uses it?

A: Simulation engineers, CAE/FEA tool developers, data exchange integrators, and organizations responsible for STEP import/export and schema conformance testing for finite element data.

Q: Is it current or superseded?

A: This document is a published corrigendum dated July 2014 that amends ISO 10303-104:2000. As a corrigendum it updates the 2000 edition; users should check the ISO catalogue or their national standards body for any later amendments, corrigenda or revisions after 2014.

Q: Is it part of a series?

A: Yes — Part 104 is part of the ISO 10303 (STEP) series of standards (multiple parts covering EXPRESS, file formats, integrated resources and application protocols). Part 104 specifically provides the integrated application resource for finite element analysis within that family.

Q: What are the key keywords?

A: finite element analysis, FEA, STEP, ISO 10303, EXPRESS, corrigendum, integrated application resource, tensor, node functions, schema identifiers.