Validation of insulated joints

Examensarbete för masterexamen

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Type: Examensarbete för masterexamen
Master Thesis
Title: Validation of insulated joints
Authors: Wahnström, Anton
Abstract: In track engineering, insulated joints are widely used as a key component in the signaling system to electrically insulate track sections and thereby locate trains. However, many problems with track deterioration and signaling malfunction are re- lated to them. In spite of this, the requirements on validation testing to assure the mechanical quality of insulated joints are rather low. Trafikverket (Swedish Transport Administration) has a standard that specifies tension tests for insulated joints. However the related bending test is not specified, which makes comparisons between tests cumbersome. There is therefore a need to establish a standardized bending test to compare and evaluate the quality of insulated joints. This thesis outlines such a standardized test. Further, a crucial part in the validation is operational testing. This thesis scrutinizes the issue of how tests should be designed to assure a high statistical confidence.
Keywords: Building Futures;Materialvetenskap;Transport;Hållbar utveckling;Innovation och entreprenörskap (nyttiggörande);Byggnadsteknik;Fastkroppsmekanik;Building Futures;Materials Science;Transport;Sustainable Development;Innovation & Entrepreneurship;Building engineering;Solid mechanics
Issue Date: 2011
Publisher: Chalmers tekniska högskola / Institutionen för tillämpad mekanik
Chalmers University of Technology / Department of Applied Mechanics
Series/Report no.: Diploma work - Department of Applied Mechanics, Chalmers University of Technology, Göteborg, Sweden : 1652-8557
Collection:Examensarbeten för masterexamen // Master Theses

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