A New Framework to Address BIM Interoperability in the AEC Domain from Technical and Process Dimensions

Table 3

IFC-based invariant material signatures representation implementations.

Parameters name	Unit information	Material type	IFC representations of “NominalValue”
Mass density	kg/m3	Steel, concrete, and wood	IfcMassDensityMeasure
Young’s modulus	N/m^2	Steel, concrete, and wood	IfcModulusOfElasticityMeasure
Shear modulus	N/m^2	Steel, concrete, and wood	IfcShearModulusMeasure
Poisson’s ratio		Steel, concrete, and wood	IfcPositiveRatioMeasure or IfcRatioMeasure
Thermal expansion coefficient	°C-1	Steel and concrete	IfcThermalExpansionCoefficientMeasure
Ultimate stress, yield stress, and compressive strength	N/m^2	Steel and concrete	IfcPressureMeasure