Journal article
Indentation into an aluminium panel by the impact of a rigid spherical object
Shuangmin Shi, Nelson Lam, Yiwen Cui, Lihai Zhang, Guoxing Lu, Emad Gad
Thin-Walled Structures | Elsevier BV | Published : 2022
Abstract
This paper introduces algebraic expressions for determining the amount of permanent indentation caused to an aluminium panel when impacted by a rigid spherical object. The magnitude of indentation is observed to vary significantly with the position of impact within the panel when the impactor and the velocity of impact are kept the same. This spatial variation of indentation is caused by the changes in the combinational mass (which is in turn function of the participating mass of the plate) and the Coefficient of Restitution COR. Both parameters are shown to correlate with the position of impact. The proposed algebraic expression featuring the combinational mass and COR as input parameters, ..
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Grants
Awarded by Australian Research Council
Funding Acknowledgements
Financial support from the Australian Research Council Project LP190100208 titled Performance based assessment of building cladding against hailstorms is acknowledged. Cash and in-kind support by Mr Ian Bennie (General Manager of Ian Bennie and Associates) and Mr Suresh Sutrave (Director of Atlite Skylights) as Partner Investigators of the linkage project are also gratefully acknowledged. The authors wish to thank Ms Jia Ming Goh, Mr Kubendra Rao and Mr Jasman Anwar for their kind help during the experiment.