## On this page # Class DurabilityAnalysisParameter Last update: 09.03.2026 Namespace: [VM.Operations.Post](VM.Operations.Post.md) Assembly: VM.Operations.Post.dll Represents a parameter used for durability analysis. ```csharp public sealed class DurabilityAnalysisParameter : IDurabilityAnalysisParameter ``` #### Inheritance object ← [DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md) #### Implements IDurabilityAnalysisParameter ## Examples To view the examples, refer to the location of the 'Install\_Path\\Motion\\Document\\Postprocessor API for Python.zip' file. ```python # DurabilityAnalysisParameter.py # -*- coding: utf-8 -*- import sys # Get the current file's path and set the path for external modules. current_dir = __file__.rsplit('\\', 1)[0] external_modules_path = current_dir + '\\..\\..\\Modules' sys.path.append(external_modules_path) # Import necessary modules from OperationAPI import * # Start the headless application interface applicationHandler = ApplicationHandler() # Import result file result_file_path = get_result_file_path() # Set array about result file filepaths = List[str]() filepaths.Add(result_file_path) # Open about result files # This will open the result file in the application. # When the result is first opened, a Page is created and an Animation View is created on that Page. applicationHandler.AddDocument(filepaths) # Get Active Page # This retrieves the currently active page in the application. page = applicationHandler.GetActivePage() # Get Active View # This retrieves the currently active view in the page. activeView = page.GetActiveView() # Loading Animation - Use this only when the current Active View is an Animation View. # This method is used to load the animation in the active view. applicationHandler.LoadingAnimation() # Set values for fatigue analysis. # BodyName - Name of the FEBody to assign the material. # MaterialName - Name of the material to assign to the FEBody. # AnalysisType - Type of fatigue analysis. # FatigueAnalysisType can be one of the following: # - FatigueAnalysisType.SN - SN Curve # - FatigueAnalysisType.EN - EN Curve # Scale - The result for fatigue life is calculated by dividing by the scale. # StressStrainCombinationType - Type of stress-strain combination. # StressStrainCombinationType can be one of the following: # - StressStrainCombinationType.VonMises - VonMises # - StressStrainCombinationType.Signed_VonMises - Signed VonMises # - StressStrainCombinationType.Max_Principal - 1st Principal # - StressStrainCombinationType.Min_Principal - 3rd Principal # - StressStrainCombinationType.Max_ABS_Principal - Max Abs Principal # - StressStrainCombinationType.Max_Shear - Max Shear # - StressStrainCombinationType.Signed_Max_Shear - Signed Max Shear # - StressStrainCombinationType.Average_Principal - Average Principal # MeanStressCorrection - Method for mean stress correction. # MeanStressCorrection can be one of the following: # - MeanStressCorrection.Neglect - Neglect # - MeanStressCorrection.ModifiedGerber - Modified Gerber # - MeanStressCorrection.GerberLocus - GerberLocus # - MeanStressCorrection.Sodeberg - Sodeberg # - MeanStressCorrection.DEelliptic - DEelliptic parameter = FatigueParameter() parameter.BodyName = "FEBody_01" parameter.MaterialName = "2014_HV_O" parameter.AnalysisType = FatigueAnalysisType.SN parameter.Scale = 1.0 parameter.StressStrainCombinationType = StressStrainCombinationType.VonMises parameter.MeanStressCorrection = MeanStressCorrection.Neglect # Create a DurabilityAnalysisParameter # FilePath - The path to the result file. # ResultName - Name of the fatigue result. The result will be saved in the Fatigue folder under the result file directory. # NoOfRepeatedLoad - Number of repeated loads # LowerValue - Start time # UpperValue - End time # Parameters.Add - Adds a target. The target is a FatigueParameter that contains values for setting the FEBody. durabilityParameter = DurabilityAnalysisParameter() durabilityParameter.FilePath = result_file_path durabilityParameter.ResultName = "Beam1" durabilityParameter.NoOfRepeatedLoad = 1 durabilityParameter.LowerValue = 1 durabilityParameter.UpperValue = 10 durabilityParameter.Parameters.Add(parameter) applicationHandler.DurabilityAnalysis(durabilityParameter) # Close the Pages # Get all created pages. # This retrieves all pages created in the application. pages = applicationHandler.GetPages() for page in pages : page.Close() # Close Document applicationHandler.CloseDocument(result_file_path) ``` ## Remarks This class provides properties and methods to define and manage the parameters required for performing a durability analysis. It implements the interface and the interface for resource management. For more details, refer to the online manual "5.4. Fatigue". ## Constructors ### DurabilityAnalysisParameter() Initializes a new instance of the class. ```csharp public DurabilityAnalysisParameter() ``` #### Examples For an example that includes this property, see the [Class DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This constructor initializes the property with an empty list of objects. It ensures that the collection is ready for use immediately after the object is created. ## Properties ### DocumentFilePath Gets or sets the file path of the document associated with the durability analysis. ```csharp public string DocumentFilePath { get; set; } ``` #### Property Value string #### Examples For an example that includes this property, see the [Class DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This property is used to specify the location of the document file that is analyzed for durability. ### End Gets or sets the end value for the durability analysis range. ```csharp public int End { get; set; } ``` #### Property Value int #### Examples For an example that includes this property, see the [Interface DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This property specifies the upper limit of the range used in the durability analysis. ### FilePath Gets or sets the file path of the document associated with the durability analysis. ```csharp [Obsolete("This property is considered outdated and its use is discouraged. It may be removed in future versions, so it is advisable to use the DocumentFilePath property of the DurabilityAnalysisParameter class instead.", true)] public string FilePath { get; set; } ``` #### Property Value string #### Examples For an example that includes this property, see the [Interface DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This property is marked as obsolete. Use instead. ### LowerValue Gets or sets the lower value for the durability analysis range. ```csharp [Obsolete("This property is considered outdated and its use is discouraged. It may be removed in future versions, so it is advisable to use the Start property of the DurabilityAnalysisParameter class instead.", true)] public int LowerValue { get; set; } ``` #### Property Value int #### Examples For an example that includes this property, see the [Interface DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This property is marked as obsolete. Use instead. ### NoOfRepeatedLoad Gets or sets the number of repeated loads for the durability analysis. ```csharp public double NoOfRepeatedLoad { get; set; } ``` #### Property Value double #### Examples For an example that includes this property, see the [Interface DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This property specifies the total count of repeated load cycles applied during the durability analysis. ### Parameters Gets the list of fatigue parameters used in the durability analysis. ```csharp [Obsolete("This property is considered outdated and its use is discouraged. It may be removed in future versions, so it is advisable to use the Targets property of the DurabilityAnalysisParameter class instead.")] public IList Parameters { get; } ``` #### Property Value IList<IFatigueParameter> #### Examples For an example that includes this property, see the [Interface DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This property provides access to the collection of fatigue parameters that define the characteristics of the durability analysis. ### ResultName Gets or sets the name of the result associated with the durability analysis. ```csharp public string ResultName { get; set; } ``` #### Property Value string #### Examples For an example that includes this property, see the [Interface DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This property is used to specify or retrieve the name of the result generated from the durability analysis. ### Start Gets or sets the start value for the durability analysis range. ```csharp public int Start { get; set; } ``` #### Property Value int #### Examples For an example that includes this property, see the [Interface DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This property specifies the lower limit of the range used in the durability analysis. ### Targets Gets or sets the collection of target finite element bodies for the durability analysis. ```csharp public IEnumerable Targets { get; } ``` #### Property Value IEnumerable<Guid> #### Examples For an example that includes this property, see the [Interface DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This property specifies the finite element bodies that are analyzed during the durability analysis. Each target in the collection represents a specific body with its own material and analysis properties. ### UpperValue Gets or sets the upper value for the durability analysis range. ```csharp [Obsolete("This property is considered outdated and its use is discouraged. It may be removed in future versions, so it is advisable to use the End property of the DurabilityAnalysisParameter class instead.", true)] public int UpperValue { get; set; } ``` #### Property Value int #### Examples For an example that includes this property, see the [Interface DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This property is marked as obsolete. Use instead. ## Methods ### AddTarget(Guid) Adds a target finite element body to the collection of targets for the durability analysis. ```csharp public void AddTarget(Guid target) ``` #### Parameters `target` Guid The unique identifier of the target finite element body to add. #### Examples For an example that includes this property, see the [Interface DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This method attempts to add the specified `target` to the collection. If the collection is not a modifiable list, an is thrown. #### Exceptions InvalidOperationException Thrown when the collection is not modifiable. ### RemoveTarget(Guid) Removes a target finite element body from the collection of targets for the durability analysis. ```csharp public void RemoveTarget(Guid target) ``` #### Parameters `target` Guid The unique identifier of the target finite element body to remove. #### Examples For an example that includes this property, see the [Interface DurabilityAnalysisParameter](VM.Operations.Post.DurabilityAnalysisParameter.md). #### Remarks This method attempts to remove the specified `target` from the collection. If the collection is not a modifiable list, an is thrown. #### Exceptions InvalidOperationException Thrown when the collection is not modifiable.