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Industrial automation systems and integration -- Product data representation and exchange -- Part 104: Integrated application resource: Finite element analysis


Document Number: ISO 10303-104:2000
File Size: 1.8 MB
Language: English
Provider: ANSI
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This part of ISO 10303 specifies the resources for finite element analysis input and output information. This includes finite element models, the analysis control information, and the analysis results. The finite element analysis information model is partitioned into four schemas: the structural_response_- definition_schema, the structural_response_representation_schema, the finite_element_analysis_- control_and_result_schema and the fea_scalar_vector_tensor_schema.

Analysis type scope

The following types of analyses are within the scope of this part of ISO 10303:

  • linear static analysis and linear dynamic modes and frequencies analysis of general 3D stress, plane stress, axisymmetric strain, and simple plane strain, based upon h-version finite element formulation using 2D and 3D continua and embedded elements which include thick shells, thin shells, beams, and bars.

The following types of analyses are outside the scope of this part of ISO 10303:

  • linear static analysis of generalized plane strain.

Structural response definition schema scope

The following are within the scope of the structural_response_definition_schema of this part of ISO 10303:

  • the definitional aspects of a finite element analysis model;
  • the definitional aspects of a finite element;
  • the definitional aspects of a node.

Figure 1 - FEA schema level model in EXPRESS-G

Structural response representation schema scope

The following are within the scope of the structural_response_representation_schema of this part of ISO 10303:

  • nodes, h-version finite elements, and the associated element material and geometric property representations that combine to form a discretised mesh;
  • material representations;
  • coordinate space representations;
  • administrative information.

The following are outside the scope of the structural_response_representation_schema of this part of ISO 10303:

  • p-version finite elements.

Finite element analysis control and result schema scope

The following are within the scope of the finite_element_analysis_control_and_result_schema of this part of ISO 10303:

  • analysis selection and related information;
  • environment information;
  • output control information;
  • nodal and element output information;
  • output information applying to a whole model;
  • administrative information.

Scalars, vectors, and tensors schema scope

The following scalars, vectors and tensors which are necessary to represent the input and output of finite element analyses are within the scope of the fea_scalar_vector_tensor_schema of this part of ISO 10303:

  • scalars;
  • 2D and 3D first order tensors;
  • 2D and 3D second order tensors;
  • 2D and 3D symmetric fourth order tensors.

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