IFC 4.3.1.0 (IFC4X3_ADD1) development

8.10.4.9 Pset_MaterialSteel

8.10.4.9.1 Semantic definition

A set of extended mechanical properties related to steel (or other metallic and isotropic) materials.

8.10.4.9.2 Applicable entities

8.10.4.9.3 Properties

Name Property Type Data Type Description
YieldStress IfcPropertySingleValue IfcPressureMeasure

A measure of the yield stress (or characteristic 0.2 percent proof stress) of the material.

UltimateStress IfcPropertySingleValue IfcPressureMeasure

A measure of the ultimate stress of the material.

UltimateStrain IfcPropertySingleValue IfcPositiveRatioMeasure

A measure of the (engineering) strain at the state of ultimate stress of the material.

HardeningModule IfcPropertySingleValue IfcModulusOfElasticityMeasure

A measure of the hardening module of the material (slope of stress versus strain curve after yield range).

ProportionalStress IfcPropertySingleValue IfcPressureMeasure

A measure of the proportional stress of the material. It describes the stress before the first plastic deformation occurs and is commonly measured at a deformation of 0.01%.

PlasticStrain IfcPropertySingleValue IfcPositiveRatioMeasure

A measure of the permanent displacement, as in slip or twinning, which remains after the stress has been removed. Currently applied to a strain of 0.2% proportional stress of the material.

Relaxations IfcPropertyTableValue IfcNormalisedRatioMeasure/IfcNormalisedRatioMeasure

Measures of decrease in stress over long time intervals resulting from plastic flow. Different relaxation values for different initial stress levels for a material may be given. It describes the time dependent relative relaxation value for a given initial stress level at constant strain. Relating values are the "RelaxationValue". Related values are the "InitialStress"

StructuralGrade IfcPropertySingleValue IfcLabel

Classification label to define mechanical properties according to structural grades defined in published standards; designated by numbers, letters, or a combination of both.

Table 8.10.4.9.A

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8.10.4.9.4 Changelog

8.10.4.9.4.1 IFC4

  • New resource

8.10.4.9.4.2 IFC4.3_DEV_9f90c1f0