<xs:complexType name="IfcMechanicalMaterialProperties">
<xs:complexContent>
<xs:extension base="ifc:IfcMaterialProperties">
<xs:sequence>
<xs:element name="DynamicViscosity" type="ifc:IfcDynamicViscosityMeasure" nillable="true" minOccurs="0" />
<xs:element name="YoungModulus" type="ifc:IfcModulusOfElasticityMeasure" nillable="true" minOccurs="0" />
<xs:element name="ShearModulus" type="ifc:IfcModulusOfElasticityMeasure" nillable="true" minOccurs="0" />
<xs:element name="PoissonRatio" type="ifc:IfcPositiveRatioMeasure" nillable="true" minOccurs="0" />
<xs:element name="ThermalExpansionCoefficient" type="ifc:IfcThermalExpansionCoefficientMeasure" nillable="true" minOccurs="0" />
</xs:sequence>
</xs:extension>
</xs:complexContent>
</xs:complexType>
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