Hertz Contact Stress Analysis and Validation Using Finite Element Analysis
Journal Title: International Journal for Research in Applied Science and Engineering Technology (IJRASET) - Year 2014, Vol 2, Issue 11
Abstract
In general machines are designed with a set of elements to reduce cost, ease of assembly and manufacturability etc. One also needs to address stress issues at the contact regions between any two elements, stress is induced when a load is applied to two elastic solids in contact. If not considered and addressed adequately serious flaws can occur within the mechanical design and the end product may fail to qualify. Stresses formed by the contact of two radii can cause extremely high stresses, the application and evaluation of Hertzian contact stress equations can estimate maximum stresses produced and ways to mitigate can be sought. Hertz developed a theory to calculate the contact area and pressure between the two surfaces and predict the resulting compression and stress induced in the objects. The roller bearing assembly and spur gear pair assembly is an example were the assembly undergoes fatigue failure due to contact stresses. This paper discusses the hertz contact theory validation using finite element Analysis.
Authors and Affiliations
Mr. Prabhakar Purushothaman, Dr. Prashanth Thankachan
Keywords
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