Reference : Investigation of Bonded Connections with Silicone under Shear Loading

	Document type :	Scientific congresses, symposiums and conference proceedings : Paper published in a book
	Discipline(s) :	Engineering, computing & technology : Civil engineering
	Focus Areas :	Physics and Materials Science
	To cite this reference:	http://hdl.handle.net/10993/27796

Title :	Investigation of Bonded Connections with Silicone under Shear Loading
Language :	English
Author, co-author :	Staudt, Yves [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
	Odenbreit, Christoph [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Engineering Research Unit >]
	Schneider, Jens [Technische Universität Darmstadt > Institute of Structural Mechanics and Design]
Publication date :	16-Jun-2016
Main document title :	Challenging Glass 5 - Conference on Architectural and Structural Applications of Glass, Ghent, 16 & 17 June 2016
Editor :	Bos, Freek
	Louter, Christian
	Belis, Jan
Peer reviewed :	Yes
Audience :	International
ISBN :	9789082526806
Event name :	Challenging Glass 5 - Conference on Architectural and Structural Applications of Glass
Event date :	16 & 17 June 2016
Event organizer :	University of Ghent
Event place (city) :	Ghent
Event country :	Belgium
Keywords :	[en] Structural sealant glazing system ; Simple shear test ; Stress peak ; Failure
Abstract :	[en] In façade applications, structural sealant glazing systems with a soft adhesive like silicones show a number of advantages especially regarding brittle adherends like glass sheets, as stress concentrations in the adherends are avoided due to the large bonding area and the uniform load transfer. The application guideline for structural sealant glazing systems (European Technical Application Guideline ETAG 002) defines a simplified design concept for the silicone sealant, leading to high safety factors and restrictions in use. The material behaviour of the silicone sealant can be more accurately described using the Finite Element Method and hyperelastic material laws, but the results for the stresses at the edge area for a shear dominated loading are highly mesh dependent, due to the presence of a singularity and thus hampering the assessment of the realistic stress distribution. In this paper, shear tests on bonded connections with silicone, referring to the ETAG 002, are presented. Beside the overlap length and adhesive thickness of the specimen prescribed by the standard, two more overlap lengths and thicknesses are tested. For the experimental investigations, the force-deformation behaviour and the failure initiation, observed at the edge area, are recorded. Unlike for the adhesive length, an influence of the specimen thickness on the failure shear strain could be observed and predicted by the numerical simulations. A clear difference between the maximum load and the load at failure initiation was observed.
Permalink :	http://hdl.handle.net/10993/27796

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	Fulltext file(s): File Commentary Version Size Access Limited access LAC16.B Staudt- Investigation of Bonded Connections with Silicone under Shear- 2016.pdf Author postprint 820.06 kB Request a copy

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