Creo Simulate > Modeling Structure and Thermal Problems > Measures > Measure Basics > Automatically-Defined Measures
  
Automatically-Defined Measures
This table lists automatically-defined measures. xxx indicate a variable—typically an entity name or internal identifier.
Name
Description
xxx_force
Resultant force over a bonded or contact interface xxx
xxx_area
Contact area for contact interface xxx
xxx_any_slippagea
Slippage at any location in the frictional contact interface xxx
xxx_complete_slippagea
Slippage at all locations in the frictional contact interface xxx
xxx_average_slippagea
Slippage at most of the locations in the frictional contact interface xxx
xxx_max_tang_tractionb
Maximum value of tangential traction in the frictional contact interface xxx
xxx_max_heat_flux
Maximum value of heat flux through the thermal resistance interface xxx
xxx_heat_transfer_rate
Rate of total heat transfer across the thermal resistance interface xxx
fastenerName_shear_force
Shear force for a fastener. It is calculated only if you select the Frictionless Interface check box. The fastener carries all the shear force since there is no friction between the two components.
fastenerName_shear_stress
Shear stress in a fastener. It is calculated only if you select the Frictionless Interface check box and you define stiffness using the Using diameter and material option.
fastenerName_axial_force1
Axial force in a fastener.
fastenerName_axial_stress
Axial stress in a fastener. It is calculated only if you define stiffness using the Using diameter and material option.
fastenerName_bending_moment
Bending moment in a fastener.
fastenerName_bending_stress
Bending stress in a fastener. It is calculated only if you define stiffness using the Using diameter and material option.
fastenerName_torsion_moment
Torsional moment in a fastener. It is calculated only if you select the Frictionless Interface check box. The fastener carries all the torsional moment since there is no friction between the two components.
fastenerName_torsion_stress
Torsional stress in a fastener. It us calculated only if you define stiffness using the Using diameter and material option and you select the Frictionless Interface check box. In this case the fastener carries all the torsional stress since there is no friction between the two components.
fastenerName_intf_norm_forc
This measure tracks the total normal force between the two fastened components at the fix separation annular region. It is the measure of Ft—Fc where:
Ft—tensional force at the annular region
Fc—compression force at the annular region
A negative value of this measure indicates that there is net compression. Positive values indicate net tension and that the components are separating.
fastenerName_sep_stress
Stress for the contact interface region. It is available only for fasteners connecting solids.
This measure is the ratio of tensile force at the interface to the area in tension at the interface. The area here is the annular stress separation region.
For a valid interface, the value of this measure is zero or a small positive number.
fastenerName_intf_comp_forc
Compressive force in the fastener contact interface region. It is available only for fasteners connecting solids and is calculated only if you select the Fix Separation check box.
fastenerName_intf_bend_momt
Bending moment for the fastener contact interface region. It is available only for fasteners connecting solids and is calculated only if you select the Fix Separation check box.
fastenerName_intf_shr_forc
Shear force on the fastener contact interface region.This measure is available only for fasteners connecting solids. It is calculated only if you select the Fix Separation check box and clear the Frictionless Interface check box.
fastenerName_intf_tors_momt
Torsional moment of the fastener contact interface region. It is available only for fasteners connecting solids and is calculated only if you select the Fix Separation check box and clear the Frictionless Interface check box.
a. These measures are created only if you have selected the Create Slippage Indicators check box while creating the contact interface.
b. This measure is created only if you have selected the Infinite Friction check box while creating the contact.
The xxx_max_tang_traction measures are created if you define a contact with Infinite Friction. The interface measures—xxx_any_slippage, xxx_complete_slippage, xxx_average_slippage are created, if you click the Create Slippage Indicators check box, while creating the contact. The xxx_average_slippage measure is created only if the both surfaces in the contact are planar. These measures indicate if the slippage has occurred in the contact region. To know more about how this measure is created, see Contact Interface.
 
* When you change the friction setting for an existing contact interface from Finite to None the slippage and traction measures are no longer applicable and are not displayed on the Model Tree.
The measures, xxx_max_heat_flux and xxx_heat_transfer_rate are created , when you define a thermal resistance interface in the Thermal module.
 
* If you change the type of an existing interface, Creo Simulate does not create the interface measures for the new type automatically.
The static form of all fastener measures are computed for static analyses and dynamic shock analyses. For dynamic analyses “d” appears as a suffix to the measure name. The dynamic form of these measures for dynamic random, dynamic frequency, and dynamic time analyses are calculated. The separation stress measure for dynamic random or dynamic shock analyses are not calculated.
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