IfcGeneralMaterialProperties

Definition from IAI: A container class with general material properties defined in IFC specification.

> HISTORY: New entity in Release IFC2x.

EXPRESS specification:

ENTITY IfcGeneralMaterialProperties
SUBTYPE OF ( | IfcMaterialProperties);
MolecularWeight | : | OPTIONAL IfcMolecularWeightMeasure;
Porosity | : | OPTIONAL IfcNormalisedRatioMeasure;
MassDensity | : | OPTIONAL IfcMassDensityMeasure;
UNIQUE
UR11 | : | Material;
END_ENTITY;

Attribute definitions:

MolecularWeight | : | Molecular weight of material (typically gas), measured in g/mole.
Porosity | : | The void fraction of the total volume occupied by material (Vbr - Vnet)/Vbr [m3/m3].
MassDensity | : | Material mass density, usually measured in [kg/m3].

Inheritance graph

ENTITY IfcGeneralMaterialProperties;
ENTITY IfcMaterialProperties;
Material | : | IfcMaterial;
ENTITY IfcGeneralMaterialProperties;
MolecularWeight | : | OPTIONAL IfcMolecularWeightMeasure;
Porosity | : | OPTIONAL IfcNormalisedRatioMeasure;
MassDensity | : | OPTIONAL IfcMassDensityMeasure;
END_ENTITY;