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Analysis of crack path instabilities in a quenched glass plate using the phase-field cohesive zone model

Wei Pan, Radhi Abdelmoula, Jia Li and Changzheng Cheng

Vol. 19 (2024), No. 2, 235–250
Abstract

Cracks with unstable paths will appear in the glass during quenching. For different quenching speeds and temperatures, there will be linear, oscillatory and bifurcated crack paths. In this work, the phase-field cohesive zone model (PF-CZM) is adopted as the prototype model to address the problem of crack path instabilities in a quenched glass plate. Substituting the temperature field model into the phase field model, the thermal-mechanical coupling fracture problem is solved. The model accurately predicts different crack patterns in the quenched glass under different thermal shock densities. The variation of the crack tip positions and the crack propagating velocity are obtained. Several typical crack morphologies are simulated and analyzed, including linear, sinusoidal, semicircular and bifurcated cracks. The thresholds for crack propagation morphological variations are distinguished. Comparison with experimental data shows the efficiency and accuracy of the used phase-field model applied to thermal shock problems.

Keywords
quenched glass plate, crack path instability, phase-field, cohesive zone model
Milestones
Received: 5 July 2023
Revised: 10 November 2023
Accepted: 28 December 2023
Published: 31 January 2024
Authors
Wei Pan
Department of Engineering Mechanics
Hefei University of Technology
Hefei
China
Laboratory of Process and Material Sciences (CNRS-UPR 3407)
University of Sorbonne Paris Nord
Villetaneuse
France
Radhi Abdelmoula
Laboratory of Process and Material Sciences (CNRS-UPR 3407)
University of Sorbonne Paris Nord
Villetaneuse
France
Jia Li
Laboratory of Process and Material Sciences (CNRS-UPR 3407)
University of Sorbonne Paris Nord
Villetaneuse
France
Changzheng Cheng
Department of Engineering Mechanics
Hefei University of Technology
Hefei
China