Journal article
Experiments on an ice ball impacting onto a rigid target
Siyu Chen, Emad Gad, Lihai Zhang, Nelson Lam, Shanqing Xu, Guoxing Lu
INTERNATIONAL JOURNAL OF IMPACT ENGINEERING | PERGAMON-ELSEVIER SCIENCE LTD | Published : 2022
Abstract
This paper is concerned with the peak force (Fp) and time of occurrence (Tp) generated by the spherical ice specimen impacting onto a rigid target. The ice specimens had diameter ranging from 31.8 to 50.8 mm, and were prepared at temperature of -10°C and -30°C, respectively. The key original contribution of the article is the derivation of a correlation relationship for providing accurate predictions of Fp and Tp, for given hail size, velocity and temperature. A total of 149 Hopkinson bar tests were conducted, with impact velocity varying from 13 to 105 m/s for measuring the impact force. The tensile strength of ice, which is a term in the predictive expressions (and is measurable by the Bra..
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Grants
Awarded by Australian Research Council
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 Associ-ates) and to Mr Suresh Sutrave (Director of Atlite Skylights) for their valuable contributions as Partner Investigators of the Linkage project. The first author, Siyu Chen, wishes to thank Ms Chuxuan Shi and MrJintao Chu for their kind help in the preparation of the ice ball speci-mens. Guoxing Lu is grateful to Emeritus Professor CR Calladine for the valuable comments on the work presented.