SIFBench: An Extensive Benchmark for Fatigue Analysis

• URL: http://arxiv.org/abs/2506.01173v2
• Date: Mon, 09 Jun 2025 15:46:46 GMT
• Title: SIFBench: An Extensive Benchmark for Fatigue Analysis
• Abstract summary: Machine learning has shown great promise in predicting stress intensity factors (SIFs)<n>SIFBench is an open-source, large-scale benchmark database designed to support ML-based SIF prediction.<n>SIFBench contains over 5 million different crack and component geometries derived from high-fidelity finite element simulations.
• Score: 20.941908494137806
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Fatigue-induced crack growth is a leading cause of structural failure across critical industries such as aerospace, civil engineering, automotive, and energy. Accurate prediction of stress intensity factors (SIFs) -- the key parameters governing crack propagation in linear elastic fracture mechanics -- is essential for assessing fatigue life and ensuring structural integrity. While machine learning (ML) has shown great promise in SIF prediction, its advancement has been severely limited by the lack of rich, transparent, well-organized, and high-quality datasets. To address this gap, we introduce SIFBench, an open-source, large-scale benchmark database designed to support ML-based SIF prediction. SIFBench contains over 5 million different crack and component geometries derived from high-fidelity finite element simulations across 37 distinct scenarios, and provides a unified Python interface for seamless data access and customization. We report baseline results using a range of popular ML models -- including random forests, support vector machines, feedforward neural networks, and Fourier neural operators -- alongside comprehensive evaluation metrics and template code for model training, validation, and assessment. By offering a standardized and scalable resource, SIFBench substantially lowers the entry barrier and fosters the development and application of ML methods in damage tolerance design and predictive maintenance.

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