WELDED RIBBED MANHOLE COVER – FEM ANALYSIS AND PROTOTYPE TESTING

Abstract

In this paper, in order to achieve the required properties, several numerical simulations of pressure loading of the welded manhole cover are performed. The analysis of displacement and stress using the finite element method in the software NX Siemens 12 were conducted. Verification of numerical results was done by performing prototype testing consistion of the permanent deformation test and a loading capacity test. The loading capacity test was performed until the fracture occurred. The main goal of the paper is to determine the behaviour of the manhole cover under pressure load. The outcome of the analysis will be used for the design development of similar manhole covers.

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