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Weld Fatigue ACT Extension for Mechanical

The EDRMedeso Weld Fatigue ACT Extension is a tool to speed up post processing of weld fatigue based on IIW recommendations for Nominal, Hot-Spot and Effective Notch method in ANSYS Mechanical. This includes calculation of life, damage, safety factors, stress range and more. Also cumulative damage from several load cases can be evaluated to get the total duty cycle damage, safety factors and equivalent stress range.

Also a tool for linearized stress for solids is included to calculate e.g. “structural stress” (membrange+bending). This may be used instead of Hot-Spot method without the need of a very detaild mesh at the weld toe (Hot-Spot).

The power of the app is that it in one result object you can evaluate multiple chains of welds for a single load case or scanning of all load case combinations. For Hot-Spot method this gives a clear view of the fatigue results along the welds to identify critical points (and not only in a single point if using a manual method). All results are also written to a csv text file for easy graph creation etc.

The results can be evaluated according to IIW or DNV S-N curves that are included in the app. Custom S-N curves can be added by the user.

The app works for both shell and solid models and no specific mesh preparation or path definitions are needed. The result “Life quality” can be plotted to show if the mesh is good enough. Default settings for S-N curve and Hot-Spot method can be saved to match your favourite design code.

S-N Curves for both IIW and DNV GL are included in the app. Additional S-N curves may be added by the user.

The full Weld Fatigue documentation can be downloaded from this link:



How to buy (paid-up fee only): $2,200 USD (U.S. list price only – Prices in other countries may vary and be quoted in other currency.)

General commercial conditions: To the extent that minor releases and a next major release of the purchased version of the app are made available, customer shall be entitled to download such versions free of charge (e.g. if customer purchased Version 17.0 of the app and a Version 17.1, Version 18.0 and/or 18.1 is released, then customer shall be entitled to download Version 17.1, 18.0, and 18.1 free of charge).  To the extent that any major release beyond the next major release of the purchase version of the app is made available, customer would be entitled to purchase such updated version for an update fee.  Support is not included but may be available for purchase separately, in which case the provisions regarding customer support in the TECS terms of the License Terms would apply. 

The app is licensed solely subject to the terms and conditions contained in the non-standard clickwrap agreement that you agreed to in order to access the page containing the apps for sale (the “License Terms”).

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