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Increasing the design strength of glass - fractography and stress testing

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Increasing the design strength of glass - fractography and stress testing

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dc.contributor.author ZAMMIT, Kenneth
dc.contributor.author OVEREND, Mauro
dc.contributor.editor Domingo Cabo, Alberto es_ES
dc.contributor.editor Lázaro Fernández, Carlos Manuel es_ES
dc.date.accessioned 2010-01-26T12:54:58Z
dc.date.available 2010-01-26T12:54:58Z
dc.date.issued 2010-01-26T12:54:58Z
dc.identifier.isbn 978-84-8363-461-5
dc.identifier.uri http://hdl.handle.net/10251/6953
dc.description p. 867-880 en_EN
dc.description.abstract Brittleness is the unintended, but inevitable consequence of producing a transparent ceramic for architectural applications such as the soda-lime glass. Its tensile strength is particularly sensitive to surface imperfections, such as that from natural weathering and malicious damage. Although a significant amount of testing of new glass has been carried out, there has been surprisingly little testing on weathered glass. Due to the variable nature of the causes of surface damage, the lack of data on weathered glass leads to a considerable degree of uncertainty in the long-term strength of exposed glass. This paper presents the results of recent tests on weathered annealed glass which has been exposed to natural weathering for more than 20 years. The tests include experimental investigations using the co-axial ring setup as well as optical and atomic force microscopy of the glass surfaces. The experimental data from these tests is subsequently used to extend existing fracture mechanics-based models to predict the strength of weathered glass. It is shown that using an automated approach based directly on finite element analysis results can give an increase in effective design strength in the order of 70 to 100% when compared to maximum stress methods. It is also shown that by combining microscopy and strength test results, it is possible to quantitatively characterise the damage on glass surfaces. en_EN
dc.language Inglés en_EN
dc.publisher Editorial Universitat Politècnica de València es_ES
dc.relation.ispartof Symposium of the International Association for Shell and Spatial Structures (50th. 2009. Valencia). Evolution and Trends in Design, Analysis and Construction of Shell and Spatial Structures : Proceedings en_EN
dc.rights Reserva de todos los derechos en_EN
dc.subject Glass strength en_EN
dc.subject Weathered glass en_EN
dc.subject Fractography en_EN
dc.title Increasing the design strength of glass - fractography and stress testing en_EN
dc.type Comunicación en congreso en_EN
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Zammit, K.; Overend, M. (2010). Increasing the design strength of glass - fractography and stress testing. Editorial Universitat Politècnica de València. http://hdl.handle.net/10251/6953 es_ES
dc.relation.conferencename Symposium of the International Association for Shell and Spatial Structures es_ES
dc.relation.conferencedate 2009 es_ES
dc.relation.conferenceplace Valencia es_ES


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