AFGROW

Information and insight from fracture mechanics experts

Finding Equivalent Crack Growth Rate Data for Similar Steel Alloys Paper

A short article entitled: “Finding Equivalent Crack Growth Rate Data for Similar Steel Alloys” is now available for download. The article summarizes a method that may be useful when looking for an appropriate crack growth rate model for a material that is not directly available in AFGROW. The article includes examples for two steel alloys, but a similar approach may be used for any material. To obtain this document go to the My AFGROW section (requires log in or registration).

AFGROW different versions side by side instalation instructions

It is possible to have multiple versions of AFGROW installed on the same computer at the same time. The only limitation is that for the COM purposes there can be only one version of AFGROW registered with Windows. Here are the instructions: Copy the previous version of AFGROW to an external drive or another folder. Uninstall the previous version of AFGROW (using the add/remove programs option from the Control Panel) Install the new version in a different folder (i.e.: AFGROW52). Copy the previous version to its previous location. The new version will be registered with windows (part of the installation process), but you will be still able to run the previous version. The registered version will be the version that is visible to Windows COM. To change which version is visible to COM you need to unregister the version currently being used with COM with the command: afgrow.exe /unregister (using the command prompt as Administrator from the directory of the registered version), and register another version with the command: afgrow.exe /register (again, using the command prompt as Administrator from the directory where the desired version resides)

ESRD User Workshop

Alex Litvinov (LexTech) gave a presentation at the ESRD (developers of StressCheck) User Workshop, May 15-16 in St. Louis, MO. To view his and other participants presentations, please visit the ESRD Workshop webpage. You will need to log-in first in order to download any of those presentations. 

Changing Your Log-In Password

In case you've forgotten/misplaced your login password and don't like the new one that's been assigned, here are the directions to change your password: 1.      Login with the generated password;2.      After you login in, navigate to following page. It is not on the menu, so you have to copy and paste the url:http://www.afgrow.net/profile.aspx3.      Click edit, go to the right top part of the edit profile page, type your old password, new password twice, and click the “reset password” button.  

Predict the crack growth life of a structure containing internal through cracks in a row of fastener holes

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 direct comparison with FEM results using StressCheck. To obtain this document (http://www.afgrow.net/userarea/) go to the My AFGROW section.
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