Abstract
The compressive response of an axially restrained composite column, which is exposed to a heat flux due to fire is studied by both analytical and experimental means. The column is exposed to fire from one-side and an analytical approach is outlined for the resulting heat damage, the charred layer formation and non-uniform transient temperature distribution. Due to the nonuniform stiffness and the effect of the ensuing thermal moment, the structure behaves like an imperfect column, and responds by bending rather than buckling in the classical Euler (bifurcation) sense. In order to verify the mechanical response, the compressive buckling behavior of the same material subjected to simultaneous high intensity surface heating and axial compressive loading were investigated experimentally in a specially designed cone calorimeter. Experiments on the residual compressive strength following exposure to fire are also conducted for a range of heat fluxes and exposure times.
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Kardomateas, G.A. (2011). Structural Integrity and Residual Strength of Composites Exposed to Fire. In: Kounadis, A.N., Gdoutos, E.E. (eds) Recent Advances in Mechanics. Springer, Dordrecht. https://doi.org/10.1007/978-94-007-0557-9_12
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DOI: https://doi.org/10.1007/978-94-007-0557-9_12
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-007-0556-2
Online ISBN: 978-94-007-0557-9
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