XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX''"> Material Library
Patran Thermal provides three ways to define material properties:
• Define the material properties under Materials/Manual Input/Thermal Properties constituative model. The properties data is entered as values which can be a constant, or a time or temperature dependent field.
• Reference Patran Thermal’s 971-member library of materials delivered with Patran Thermal. This
Materials Library (p. 612) contains temperature dependent properties in units of SI, Inch-Lbm-Seconds, Foot-Lbm-Hours, and Centimeter-Gram-Seconds. To access the materials library, use an MID number between 1 and 971 for the Material Name, and do not define any Input Properties. The materials database in the desired units is selected in the Analysis/ Translation Parameters Form. The Patran Thermal materials library can also be accessed with the Material Selector method if Patran Material Selector is available.
Important: | Do not mix material names (“Stainless”) and material numbers (“1”) in the model if referencing the Patran Thermal Material Library. A material name such as Cres.347 will be interpreted as MID 347. |
• If the material properties data exists in a <jobname>/mat.dat file or local mat.dat.apnd file, they can be referenced under Materials/Manual Input/Thermal Templates constituative model. The Input Data entered are the Material Property IDs (MPID) that correspond to the mat.dat or mat.dat.apnd file. Patran Thermal will automatically create the template.dat file, residing in the jobname subdirectory with the MPIDs pointers into the mat.dat file.
Material forms appear when the Materials toggle is chosen.
This form appears when Materials is selected on the main menu. The Materials form is used to provide options to create the various Patran Thermal materials.
Important: | Do not mix material names (“Stainless”) and material numbers (“1”) in the model. A Material Name such as Cres.347 will be interpreted as MID 347. |
Patran Thermal Properties
Object | Method | Option |
Isotropic 3D Orthotropic | Manual Input | Patran Thermal Properties |
The properties list under Property Name can be input as a number or can be selected from the Material Property fields created under the Fields menu. These thermal properties are translated into a mat.dat file (residing in the <jobname> subdirectory).
All Material Property defined in the Fields menu will be translated to the mat.dat file. Also, any material properties constant data entered in the Materials Input Data form is written to the mat.dat file.
If a number has been specified for the material name, it will be used by Patran Thermal as the MID and the material property will have a suffix added to it for the MPID. If a name is used to define the material, the next available MID (plus an offset of 1000 to prevent conflicts with the Patran Thermal materials database) will be used. An MID template is automatically created in the template.dat file located in the <jobname> subdirectory for all the materials defined from within Patran.
Caution: | A material name such as cres.345 will be interpreted as MID 345. Do not mix an MID number (e.g., 1) and a name (e.g., stainless) in the same database. |
If a mat.dat.apnd or template.dat.appd. file is found in the directory where Patran is being executed, it will be appended to the corresponding file in the <jobname> subdirectory. This is an effective way of incorporating auxiliary data to the job being submitted. Care must be taken not to create conflicts between appended files and those generated by Patran.
Important: | When the analysis is submitted, Patran Thermal will automatically create the necessary entries in the <jobname>/template.dat and mat.dat files. |
Patran Thermal Templates
Object | Method | Option |
Isotropic 3D Orthotropic | Manual Input | Patran Thermal Templates |
The following form is used to input the Material Property IDs for the thermal properties.
Important: | When the analysis is submitted, Patran Thermal will automatically create the necessary MID template entry in the <jobname>/template.dat file. |
