Journal article

Determination of contact force by compression testing of cylindrical specimens

ZZA Majeed, NTK Lam, C Lam, E Gad, JSH Kwan

MethodsX | Elsevier Inc. | Published : 2019

Abstract

This paper presents a method for determining values of dynamic parameters of the Hunt and Crossley model in order to estimate the amount of force generated at the point of contact (contact force) in an impact. A two-degree-of-freedom lumped-mass-system based on a non-linear visco-elastic model as proposed by Hunt and Crossley has been widely used to accurately model contact force. The primary difficulty associated with the Hunt and Crossley contact force model is the need to determine the unknown dynamic parameters of the model, which can be obtained by calibrating the model against results from high-speed impact experiments. Spherical impactors have to be placed in the gas-gun barrel for ac..

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University of Melbourne Researchers

Grants

Awarded by Australian Research Council


Awarded by Research Grants Council of Hong Kong


Funding Acknowledgements

Financial support from the Australian Research Council ProjectDP170101858 entitled New Approach for Design of Barriers for Impact is acknowledged. Julian S. H. Kwan and Carlos Lam are grateful for the financial support from the theme-based research grant T22-603/15-N provided by the Research Grants Council of Hong Kong and the permission of the Head of Geotechnical Engineering Office and the Director of Civil Engineering and Development, Hong Kong SAR Government, China for publishing this paper.