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Durability > Durability results for the event-based analysis

Files created by the durability solver

For each static and transient event and for each durability solution process, the durability solver creates an XML file, an FTL file, and a BUD or a BUN file.

XML files

Durability event or durability solution process input files. These files are created each time an event or a durability solution process is solved. When you copy model files to another folder, you do not need to copy the XML ones.

FTL files

Durability solver scratch files. These files are read and they information is displayed in the Information window when you use the Show Solution Log command. To access this command, right-click the durability solution process node or the event nodes.

BUD files

Durability solver result files. These files are used in Pre/Post post-processing to display durability result sets. You must also load the parent solution result files.

BUN files

Durability solver result files that also contain geometry. These files are used in post-processing to display durability result sets. You do not need to load parent solution result files. To generate BUN files, set the Save Geometry in Results Files customer default.

Tip:

To find a customer default, choose File tab→UtilitiesCustomer Defaults, and click Find Default .

For durability events, the format of the name for all file types is as follows:

[simulation name]-[durability solution process name]-[durability event name]

Example:

muffler_sim-Durability_1-Static_Event_1.xml

muffler_sim-Durability_1-Static_Event_1.ftl

muffler_sim-Durability_1-Static_Event_1.bud

muffler_sim-Durability_1-Static_Event_1.bun

For a durability solution process, the format of the name for all file types is as follows:

[simulation name]-[durability solution process name]

Example:

muffler_sim-Durability_1.xml

muffler_sim-Durability_1.ftl

muffler_sim-Durability_1.bud

muffler_sim-Durability_1.bun

The durability solver creates the files in the folder that contains the FEM and Simulation files.

How do I

Solve durability and events

View durability results

Plot the stress loading history for a given element

Create a durability damage report

Learn more

Durability diagnostic groups

Evaluate Fatigue Histories

Durability comprehensive report

Look up more details

Strength dialog box

Fatigue dialog box

Quick links

Command reference

Pre/Post video examples

Bulk Entry Descriptions

Simcenter 3D tutorials

Browse Simcenter 3D help by product area

Files created by the durability solver, Simcenter 3D 2021.1 Series

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Source: https://docs.sw.siemens.com/en-US/doc/289054037/PL20200601120302950.advanced/id1194097 · retrieved 2026-07-17