Journal article
Fast fracture in toughened glass when impacted randomly by Ice
Y Cui, N Lam, S Shi, G Lu, E Gad, L Zhang
International Journal of Impact Engineering | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2024
Open access
Abstract
Modelling the triggering of fracture at a pre-existing flaw is an evolving method of predicting ultimate failure in glass. This fracture mechanics approach of modelling has been shown to give more reliable predictions than a calibrated probabilistic distribution model (as is commonly adopted) when dealing with hail impact which is highly transient in nature. The dynamic stress intensity factor controlling fast crack growth is sensitive to the complex stress state surrounding the critical flaw. Finite element simulations of localised stresses in 3D could incur high computation cost which is compounded by the need to repeat computations until convergence and to simulate multiple strikes in emu..
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Grants
Awarded by University of Melbourne
Funding Acknowledgements
This study is financially supported by the Australian Research Council through Linkage Project (ARC LP190100208) . The authors are grateful to Mr Ian Bennie (General Manager of Ian Bennie and Associates) and to Mr Suresh Sutrave (Director of Atlite Skylights) for their valuable contributions as Partner Investigators of the Linkage project. This work was performed in part at the Materials Characterisation and Fabrication Platform (MCFP) at the University of Melbourne and the Victorian Node of the Australian National Fabrication Facility (ANFF) . This work was performed in part at the Trace Analysis for Chemical, Earth and Environmental Sciences (TrACEES) Platform at the University of Melbourne. We acknowledge Dr Jay Black for his support with Micro-CT scan analysis. We are grateful to Mr Kubendra Rao and Mr Jasman Anwar for their support in the preparation of the test apparatus. We are grateful to Ms Cong Wang for her kind help in preparing the ice specimens.