Custom Fatigue Library Support

GageMap supports extension of the fatigue assessment capability by providing tools to load and use a user-implemented fatigue library.

Loading a Custom Fatigue Assessment Library

Open the GageMap Preferences and navigate to the Fatigue options. As seen in Fig. 1, there is an option to change the current custom fatigue assessment library. This library must be a dynamic-link library, having a .so extension on Linux and a .dll extension on Windows.

Fig. 1 Loading a custom fatigue library

When a custom fatigue library is selected, GageMap tests the following conditions:

• the library can be opened at the specified path
• symbols matching the custom fatigue library interface are able to be loaded from the library
• the user defined limit function has been defined with the correct name and correct parameter list

If these conditions are not met, the fatigue library specified will be rejected and an error message will be displayed indicating that a problem occured, as seen in Fig. 2.

Fig. 2 Error while loading fatigue library

Once a fatigue library has been successfully loaded, it can be used as part of the fatigue assessment, but custom fatigue library usage is not enabled by default. In order to use the loaded fatigue library, navigate to the fatigue assessment tab and check that the fatigue library path in the box is correct (it should always update with the fatigue library path in the prefrences), then click the “Use Custom Fatigue Library” setting in the side panel. Doing so will load the custom fatigue library and prepare it for use in the fatigue assessment.