Fractographic Analysis and Particle Filter-Based Fatigue Crack Propagation Prediction of Q550E High-Strength Steel

Advances in Machine Learning Techniques Used in Fatigue Life Prediction of Welded Structures

“…Moreover, welding residual stress can be precisely forecasted by using the transverse and bending stress components derived from the transverse constraint, bending constraint, and welding residual stress as predictors for learning the DNN model. Also, results from a study showed that the FCG behavior of the butt-welded specimen is more sensitive to the stress ratio than that of the base metal specimen [131].…”

“…Subsequently, the reliability of the upgrade was upheld using Weibull models found in survival analysis. In research by Peng et al [131], they developed a particle-filter based Fatigue Crack Growth (FCG) prediction technique for a base metal and butt-welded specimen to deal with the uncertainty in the FCG process. Yu et al [132] developed a novel technique incorporating both ML and FEA to forecast F-N fatigue curves of high-strength steel RSW joints.…”

“…Bridges [90,92,93], energy [94]. Steel [96,97,102,106,108,109,112,114,115,118,120,121,123,126,[129][130][131][132], aluminum [107,110], titanium [108], stainless steel [114,119], CFRP + steel [121],…”

“…Traffic-flow parameters (growth factors of traffic volume and vehicle weight) [16], crack length data and strain data [97], crack growth parameters [98], stress histories and cycles [99], fatigue crack growth parameters [100], pavement temperatures and heavy traffic intensities [101], keyhole shape and melt pool [103], vehicle loads (axle loads) [104], SIF [105], correlated wind and wave load [106], Joint type, plate thickness [111,132], spindle torque, shoulder design, welding speed, rotational speed, the plunge depth, base material, pin design/profile, tool type [116], wind loads, wave loads and soil properties [119], overlap ratio, welding speed, wire feed speed, and [127], energy data and spectral density functions [129], SCF [130], stress ratio [131], plate widths, nugget diameter [132].…”

“…Fatigue stress range [16], remaining FL [97], limit state function [98], fatigue damage index [99], number of cycles to failure [100], stress range distributions [101], stress amplitudes [104], MCIL [105], stress time histories at critical structural details [106] yield strength, welding quality, tensile strength, elongation, hardness, wear rate, residual stress, fatigue strength [129], AE signal [121], FL [130], FCG [131], F-N fatigue curves [132].…”