IFC 4.3.x development

8.15.4.2 Pset_ProfileMechanical

8.15.4.2.1 Semantic definitions at the entity

This is a collection of mechanical properties that are applicable to virtually all profile classes. Most of these properties are especially used in structural analysis.

Name Type Description
CentreOfGravityInX IfcPropertySingleValueLocation of the profile's centre of gravity (geometric centroid), measured along xp.
CentreOfGravityInY IfcPropertySingleValueLocation of the profile's centre of gravity (geometric centroid), measured along yp.
CrossSectionArea IfcPropertySingleValueArea of the profile. For example measured in mm2. If given, the value of the cross section area shall be greater than zero.
MassPerLength IfcPropertySingleValueMass per length, i.e. mass of a beam with a unit length of extrusion. For example measured in kg/m.
MaximumPlateThickness IfcPropertySingleValueThis value may be needed for stress analysis and to handle buckling problems. It can also be derived from the given profile geometry or classification and therefore it is only an optional feature allowing for an explicit description. For example measured in mm.
MaximumSectionModulusY IfcPropertySingleValueBending resistance about the ys axis at the point with maximum zs ordinate. For example measured in mm³.
MaximumSectionModulusZ IfcPropertySingleValueBending resistance about the zs axis at the point with maximum ys ordinate. For example measured in mm³.
MinimumPlateThickness IfcPropertySingleValueThis value may be needed for stress analysis and to handle buckling problems. It can also be derived from the given profile geometry or classification and therefore it is only an optional feature allowing for an explicit description. For example measured in mm.
MinimumSectionModulusY IfcPropertySingleValueBending resistance about the ys axis at the point with minimum zs ordinate. For example measured in mm³.
MinimumSectionModulusZ IfcPropertySingleValueBending resistance about the zs axis at the point with minimum ys ordinate. For example measured in mm³.
MomentOfInertiaY IfcPropertySingleValueMoment of inertia about ys (second moment of area, about ys). For example measured in mm4.
MomentOfInertiaYZ IfcPropertySingleValueMoment of inertia about ys and zs (product moment of area). For example measured in mm4.
MomentOfInertiaZ IfcPropertySingleValueMoment of inertia about zs (second moment of area, about zs). For example measured in mm4
Perimeter IfcPropertySingleValuePerimeter of the profile for calculating the surface area. For example measured in mm.
PlasticShapeFactorY IfcPropertySingleValueRatio of plastic versus elastic bending moment capacity about the section analysis axis ys. A dimensionless value.
PlasticShapeFactorZ IfcPropertySingleValueRatio of plastic versus elastic bending moment capacity about the section analysis axis zs. A dimensionless value.
ShearAreaY IfcPropertySingleValueArea of the profile for calculating the shear stress due to shear force parallel to the section analysis axis ys. For example measured in mm². If given, the shear area ys shall be non-negative.
ShearAreaZ IfcPropertySingleValueArea of the profile for calculating the shear stress due to shear force parallel to the section analysis axis zs. For example measured in mm². If given, the shear area zs shall be non-negative.
ShearCentreY IfcPropertySingleValueLocation of the profile's shear centre, measured along ys.
ShearCentreZ IfcPropertySingleValueLocation of the profile's shear centre, measured along zs.
ShearDeformationAreaY IfcPropertySingleValueArea of the profile for calculating the shear deformation due to a shear force parallel to ys. For example measured in mm². If given, the shear deformation area ys shall be non-negative.
ShearDeformationAreaZ IfcPropertySingleValueArea of the profile for calculating the shear deformation due to a shear force parallel to zs. For example measured in mm². If given, the shear deformation area zs shall be non-negative.
TorsionalConstantX IfcPropertySingleValueTorsional constant about xs. For example measured in mm4.
TorsionalSectionModulusIfcPropertySingleValueTorsional resistance (about xs). For example measured in mm³.
WarpingConstant IfcPropertySingleValueWarping constant of the profile for torsional action. For example measured in mm6.