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Numerical Modelling of Structural Glass Elements under Thermal Exposure
University of Trieste, Italy.
RISE - Research Institutes of Sweden, Säkerhet och transport, Safety. (Mechanics Research)ORCID-id: 0000-0001-5879-7305
Silesian University of Technology, Poland; Lund University, Sweden.
2018 (engelsk)Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Glass is largely used in engineering applications as a structural material, especially for laminated glass (LG) sections. However, the well-known temperature-dependent behaviour of visco-elastic interlayers for LG sections should be properly accounted for safety purposes, even in ambient conditions. The materials thermo-mechanical degradation with increase of temperature could further severely affect the load-bearing performance of such assemblies. Thermo-mechanical Finite Element (FE) numerical modelling, in this regard, can represent a robust tool and support for designers. Key input parameters and possible limits in FE models, however, should be properly taken into account and calibrated, especially for geometrically simplified models, to enable realistic and reliable estimations of real structural behavior. In this paper, FE simulations are proposed for monolithic (MG) and LG specimens under radiant heating, based on one-dimensional (1D) models. With the use of experimental results from the literature, parametric studies are discussed, indicating limits and issues at several modelling assuptions. Careful consideration is paid for various thermal material properties (conductivity, specific heat), boundary conditions (conductivity, emissivity) as well as geometrical features (thickness tolerances, etc.) and composition of LG sections (interlayer type, thickness). Comparative parametric results are hence discussed in the paper.

sted, utgiver, år, opplag, sider
2018.
Emneord [en]
structural glass; laminated glass; experiments; numerical modelling; one-dimensional (1D) models; thermal loading; material properties; thermo-mechanical performance
HSV kategori
Identifikatorer
URN: urn:nbn:se:ri:diva-37554DOI: 10.3390/ecms2018-05241OAI: oai:DiVA.org:ri-37554DiVA, id: diva2:1282144
Konferanse
3rd International Electronic Conference on Materials Sciences (ECMS 2018), 14-28 May 2018
Tilgjengelig fra: 2019-01-24 Laget: 2019-01-24 Sist oppdatert: 2019-08-13bibliografisk kontrollert

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