Durability damage evaluation

Use the Evaluate Damage command to perform cycle counting to identify all stress or strain cycles in a duty cycle and to calculate the damage due to identified cycles. This command uses stress or strain functions that are saved in AFU files. The AFU files must be loaded in the XY Function Navigator.

When you use the Evaluate Damage command, you can compute damage at a location without having an FE model with stress or strain results. Durability damage evaluation is an alternative to event-based fatigue damage evaluation.

The fatigue damage histogram results can be stored either in a spreadsheet or a CSV file.

You must specify the following:

• One or more stress or strain functions. The software cumulates fatigue damage results from all specified functions.

• Nominal range bin definition and mean bin definition. These definitions are automatically calculated from the specified functions, but you can modify their values.

• Fatigue life criterion.

• The cyclic stress-strain model.

• The material to which the specified stress or strain functions are applied.

The stress and strain functions can be obtained from strain gage data using the Analyze Strain Gage command.

Where do I find it?

Application	Pre/Post
Command Finder	Evaluate Damage
Menu	Insert → Durability → Evaluate Damage

How do I

Evaluate the durability damage of a stress history

Learn more

Analyzing strain gage rosette data

Look up more details

Exported durability function-based results

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Durability damage evaluation, Simcenter 3D 2021.1 Series

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