AFGROW release 5.5
James Harter, Alex Litvinov, James Lambert, Mathew Gross - LexTech, Inc.
Interference Fit Fasteners
Mike Worley - SwRI
State-of-the-Art Risk Assessment with SMART|DT plus AFGROW Integration
Nathan Crosby - AeroMatter
The integration of SMART|DT with AFGROW enables more advanced and detailed risk assessments that were previously too computationally expensive to perform. With the addition of an AFGROW interface, SMART|DT can now perform crack growth analyses coordinated with its unique capabilities—such as adaptive importance sampling, generation of crack growth spectra from mixed usage profiles, and inspection schedule optimization. This presentation will focus on how the capabilities of AFGROW and SMART|DT can be used complementarily and explore the possibilities now available that are beyond deterministic crack growth based probabilistic damage tolerance analysis.
This work is the result of a very successful integration of AFGROW with SMART|DT that we are excited to share with the AFGROW user community.
AFGROW web based post-processing application
Matthew Gross - LexTech, Inc.
TDA
Annika Harris, James Lambert - LexTech, Inc.
Derived 100 million high-accuracy countersunk hole (CS) K-solutions for b/t=0.50, 0.25 and 0.15
Börje Andersson - BARE, AB Sweden
Implementing Pipeline Failure and Burst Models into AFGROW 5.5
James Lambert - LexTech, Inc
FASTRAN GUI development with AI
Mason Anderson, Jake Warner - USAF, A-10 ASIP Analysis Group
Spike overload correlation
Mason Anderson, Jake Warner - USAF, A-10 ASIP Analysis Group
Spectrum Development for Post Buckled Aircraft Structure
James Burd - Aeronautica
TBA
Adam Morgan - Northrop Grumman Corporation | Aeronautics Systems
TBA
Cindy Klahn - Center for Aircraft Structural Life Extension, USAFA/DFME/CAStLE
TBA
James Harter - LexTech, Inc.
AFGROW Future Development Discussion
James Harter, Alex Litvinov - LexTech, Inc.
From 2-DoF to multi-DoF solutions: solution convergence and validation
Adrian Loghin - Simmetrix, Inc.
Enhancing Residual Stress Backwards-Calculation: A Convex Optimization Approach for Rapid and Reliable Solutions
Ian Hokaj - USAF, A-10 ASIP Analysis Group
Accurate determination of residual stress fields is critical for reliable fracture mechanics predictions. This presentation introduces a new, automated method for back-calculating residual stresses from marker band data, using StressCheck to compute stress intensity factors and BAMpF to validate results. By reformulating the inverse problem as a convex optimization, a unique and globally optimal solution can be obtained efficiently. The resulting algorithm achieves sub-second solve times, drastically reducing the analysis time compared to traditional, iterative methods. Results from several datasets demonstrate realistic stress field shape and excellent correlation with experimental crack growth data, validating the accuracy and efficiency of this approach for approximating residual stresses in metals.
TBA
Adrian Loghin*, Alexander Litvinov**, James Harter** - *Simmetrix Inc., **LexTech, Inc.
Stress state sensitivity study for multi-point analyses
Ysabelle Clark*, Kaylon Anderson*, Josh Hodges**, Jake Warner** - *USAF, A-10 ASIP Analysis Group, **Hill Engineering
BAMpF Workshop - updates and the status of BAMpF
Joshua Hodges - Hill Engineering