Predict the crack growth life of a structure containing internal through cracks in a row of fastener holes 14 March 2012 Alex-Litvinov AFGROW Tips and Tricks, Life Prediction, Rules of Thumb (0) A short paper by Mr. James Harter discussing the use of AFGROW to predict the crack growth life of a structure containing internal through cracks in a row of fastener holes is now available on the AFGROW web site. The paper provided details on the use of the Advanced Model Interface and provides a d... [More]
Load Interaction Models - Retardation Models - Something to think about 05 March 2012 Tom-Deiters Life Prediction, Retardation (0) It goes without saying that load interaction is important if the life prediction is to represent reality and not simply be a go no go measure. Often times go no go is good enough. But a lot of the time in the management of aging fleets, a real life prediction can be the difference betwee... [More]
Bending Bug in Legacy AFGROW Version 22 December 2010 scottp General (0) While trying to verify some AFGROW solutions for the Single Corner Crack at Hole in bending, I was comparing the Stress Intensity Factors (SIFs) that I compute in a separate Excel spreadsheeet (VBA). My VBA program computes the SIFs from the original Newman Raju curve fits in Chapter 9 of Computatio... [More]
Rules of Thumb 30 September 2010 Administrator General, Rules of Thumb (0) Several Users have asked me to post some helpful "rules of thumb" that may be useful when performing life prediction tasks. While I am happy to do it, I must first state that while I have found this information to be useful, each user must take full responsibility for their own life predictions. Nei... [More]
Removing Bonded Repair Capability 01 April 2010 Administrator General, New Features (5) As we approach the first commercial release of AFGROW, it makes sense to do a little "code cleaning." Based on user input (or lack thereof), it appears that the bonded repair analysis capability is not being used. Therefore, we are planning to remove the capability from the new release. We are aski... [More]
Windows 7 Installation Work-Around 09 December 2009 Administrator AFGROW Tips and Tricks, Windows 7 (0) Windows 7 Installation Work-Around [More]