An online tool for predicting fatigue strength of steel alloys based on ensemble data mining. (August 2018)

• Record Type: Journal Article
• Authors: Agrawal, Ankit; Choudhary, Alok
• Is Part Of: International journal of fatigue. Volume 113(2018)
• Page Start: 389
• Page End: 400
• Publication Date: 2018-08
• Subjects: Materials informatics -- Supervised learning -- Ensemble learning -- Fatigue strength -- Online tool; Materials -- Fatigue -- Periodicals; Materials -- Fatigue; Periodicals; 620.1122
• DOI: 10.1016/j.ijfatigue.2018.04.017
• Languages: English
• ISSNs: 0142-1123

Abstract

Graphical abstract: Highlights: Advanced data-driven ensemble models for fatigue strength prediction on an experimental dataset. Predictive models achieve extremely high cross-validated accuracy of >98%. Data-driven feature selection to identify key input composition and processing parameters. Models deployed online: http://info.eecs.northwestern.edu/SteelFatigueStrengthPredictor . Abstract: Fatigue strength is one of the most important mechanical properties of steel. Here we describe the development and deployment of data-driven ensemble predictive models for fatigue strength of a given steel alloy represented by its composition and processing information. The forward models for PSPP relationships (predicting property of a material given its composition and processing parameters) are built using over 400 experimental observations from the Japan National Institute of Materials Science (NIMS) steel fatigue dataset. Forty modeling techniques, including ensemble modeling were explored to identify the set of best performing models for different attribute sets. Data-driven feature selection techniques were also used to find a small non-redundant subset of attributes, and the processing/composition parameters most influential to fatigue strength were identified to inform future design efforts. The developed predictive models are deployed in a user-friendly online web-tool available at http://info.eecs.northwestern.edu/SteelFatigueStrengthPredictor .