Journal
EUROPEAN JOURNAL OF PHYSICS
Volume 42, Issue 2, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1361-6404/abccfb
Keywords
linear elasticity; extension of Sneddon’ s analysis; graphical solutions; polynomial curve fitting; differential equation solving
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This paper discusses the calculation method of the applied force on an elastic half space when a rigid sphere is pushed towards it, under the condition that the deformation depth is significantly smaller compared to the sphere's radius. It also addresses the scenario when the deformation depth is larger and provides a relative discussion on the application of the results.
Assume a rigid sphere that is slightly pushed towards an elastic half space. The applied force on the half space can be easily calculated using the basic theoretical tools provided by the Hertzian contact mechanics theory. It should be noted that the aforementioned analysis is valid under the condition that the deformation depth is significantly smaller compared to the sphere's radius (h MUCH LESS-THAN R). So, a significant question arises; what if the sphere is pushed deeper in the elastic half space (e.g. h > R)? In this paper, the aforementioned question is answered and a relative discussion regarding the application of the results is presented.
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