Journal of Engineering and Technological Sciences
Vol. 58 No. 6 (2026): Vol. 58 No. 6(2026): December

Stress Distribution Prediction in front of the crack tip using Artificial Neural Networks: A Data-Driven Approach in Fracture Mechanics

Khairul Anam (Department of Mechanical Engineering, Engineering Faculty, Brawijaya University, MT Haryono167 Malang 65145)
Anindito Purnowidodo (Department of Mechanical Engineering, Engineering Faculty, Brawijaya University, MT Haryono167 Malang 65145)
Pavan Kumar Asur Vijaya Kumar (Institute of Lightweight Design and Structural Biomechanics, TU Wien, Getreidemarkt 9, 1060 Wien)
Heinz E. Pettermann (Department of Mechanical Engineering, Indian Institute of Technology Kharagpur, West Bengal 721302)



Article Info

Publish Date
12 Oct 2026

Abstract

Understanding the stress distribution in front of the crack tip is essential because this region experiences high stress concentration that can control crack initiation and propagation. This study proposes an artificial neural network (ANN) model as a computationally efficient surrogate model for predicting the stress distribution and stress values in front of the crack tip in a simple cracked geometry. The proposed ANN model complements conventional finite element method (FEM) analyses by enabling rapid stress prediction once the model has been trained. The results show that the ANN model can capture the general relationship between the stress intensity factor, radial distance, angular position, and crack-tip stress. However, its predictive performance strongly depends on the magnitude of the stress intensity factor. At low K values, the ANN model shows significant discrepancies in both stress values and contour visualization, and it cannot accurately reproduce the theoretical butterfly-shaped stress distribution. At higher K values, the predicted stress distribution is closer to the analytical solution, and the contour shape is more consistent. These findings indicate that the present ANN model should be regarded as a proof-of-concept surrogate model with limitations, rather than a replacement for analytical LEFM solutions or FEM analysis.

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Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Electrical & Electronics Engineering

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ournal of Engineering and Technological Sciences welcomes full research articles in: General Engineering Earth-Surface Processes Materials Science Environmental Science Mechanical Engineering Chemical Engineering Civil and Structural Engineering Authors are invited to submit articles that have not ...