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Computer Modeling of Crack Propagation in Biaxially-Stressed Glass Disks

Published

Author(s)

George W. Quinn, Dianne M. O'Leary, Janet Quinn

Abstract

A computer program was written to model the propagation of two-dimensional traveling cracks in a biaxially-stressed glass disk. This was accomplished by using a combination of known fractographic equations and empirical observations with generic algorithms for generating fractals. Inputs include material property data, fracture load, disk size, and the sizes of the load-bearing rings. The outputs include fracture stress, initial crack size before branching, and a prediction of the expected number of radial cracks. A typical image of a fractured disk with the input conditions is also produced. The image incorporates empirically-determined randomness and a degree of crack curvature dependent on the stress state. The program is user-friendly, and may be easily adapted for other materials and conditions.
Proceedings Title
Sigma Xi Postdoctoral Poster Presentations, 2004
Conference Dates
February 19-20, 2004

Keywords

computer, crack, glass, modeling

Citation

Quinn, G. , O'Leary, D. and Quinn, J. (2004), Computer Modeling of Crack Propagation in Biaxially-Stressed Glass Disks, Sigma Xi Postdoctoral Poster Presentations, 2004 (Accessed April 14, 2024)
Created February 1, 2004, Updated June 2, 2021