Towards prediction of the thermal spalling risk through a multi-phase porous media model of concrete

D. Gawin; F. Pesavento; B. A. Schrefler

doi:10.1016/j.cma.2005.10.021

Towards prediction of the thermal spalling risk through a multi-phase porous media model of concrete

D. Gawin, F. Pesavento, B. A. Schrefler

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140 Scopus citations

Abstract

Physical phenomena in heated concrete, leading to thermal spalling are discussed. Contribution of the stored elastic energy and vapour pressure build-up to the kinetic energy of spalled concrete pieces is estimated. A mathematical model of hygro-thermo-chemo-mechanical phenomena in heated concrete is presented. Different simplified models of thermal spalling are used to define special indexes, aiming for quantitative assessment of its risk. These are tested for the results of numerical simulations based on an experimental test. A simplified energy analysis to estimate the kinetic energy of spalled concrete pieces and to make predictions about explosive or non-violent character of the phenomenon is proposed.

Original language	English (US)
Pages (from-to)	5707-5729
Number of pages	23
Journal	Computer Methods in Applied Mechanics and Engineering
Volume	195
Issue number	41-43
DOIs	https://doi.org/10.1016/j.cma.2005.10.021
State	Published - Aug 15 2006

Keywords

Concrete
Damage
Fracture
High temperature
Porous media
Spalling

ASJC Scopus subject areas

Computer Science Applications
Computational Mechanics

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10.1016/j.cma.2005.10.021

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title = "Towards prediction of the thermal spalling risk through a multi-phase porous media model of concrete",

abstract = "Physical phenomena in heated concrete, leading to thermal spalling are discussed. Contribution of the stored elastic energy and vapour pressure build-up to the kinetic energy of spalled concrete pieces is estimated. A mathematical model of hygro-thermo-chemo-mechanical phenomena in heated concrete is presented. Different simplified models of thermal spalling are used to define special indexes, aiming for quantitative assessment of its risk. These are tested for the results of numerical simulations based on an experimental test. A simplified energy analysis to estimate the kinetic energy of spalled concrete pieces and to make predictions about explosive or non-violent character of the phenomenon is proposed.",

keywords = "Concrete, Damage, Fracture, High temperature, Porous media, Spalling",

author = "D. Gawin and F. Pesavento and Schrefler, {B. A.}",

note = "Funding Information: This work was carried out in the framework of the UE project “ MAECENAS ” (Modelling of Ageing in Concrete Nuclear Power Plant Structures”, No. FIKS-CT-2001-00186. The first author was partially funded by the UE project, UPTUN— Cost-Effective, Sustainable and Innovative Upgrading Methods for Fire Safety in Existing Tunnels ”, No. G1RD-CT-2002 00766. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

year = "2006",

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doi = "10.1016/j.cma.2005.10.021",

language = "English (US)",

volume = "195",

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T1 - Towards prediction of the thermal spalling risk through a multi-phase porous media model of concrete

AU - Gawin, D.

AU - Pesavento, F.

AU - Schrefler, B. A.

N1 - Funding Information: This work was carried out in the framework of the UE project “ MAECENAS ” (Modelling of Ageing in Concrete Nuclear Power Plant Structures”, No. FIKS-CT-2001-00186. The first author was partially funded by the UE project, UPTUN— Cost-Effective, Sustainable and Innovative Upgrading Methods for Fire Safety in Existing Tunnels ”, No. G1RD-CT-2002 00766. Copyright: Copyright 2008 Elsevier B.V., All rights reserved.

PY - 2006/8/15

Y1 - 2006/8/15

N2 - Physical phenomena in heated concrete, leading to thermal spalling are discussed. Contribution of the stored elastic energy and vapour pressure build-up to the kinetic energy of spalled concrete pieces is estimated. A mathematical model of hygro-thermo-chemo-mechanical phenomena in heated concrete is presented. Different simplified models of thermal spalling are used to define special indexes, aiming for quantitative assessment of its risk. These are tested for the results of numerical simulations based on an experimental test. A simplified energy analysis to estimate the kinetic energy of spalled concrete pieces and to make predictions about explosive or non-violent character of the phenomenon is proposed.

AB - Physical phenomena in heated concrete, leading to thermal spalling are discussed. Contribution of the stored elastic energy and vapour pressure build-up to the kinetic energy of spalled concrete pieces is estimated. A mathematical model of hygro-thermo-chemo-mechanical phenomena in heated concrete is presented. Different simplified models of thermal spalling are used to define special indexes, aiming for quantitative assessment of its risk. These are tested for the results of numerical simulations based on an experimental test. A simplified energy analysis to estimate the kinetic energy of spalled concrete pieces and to make predictions about explosive or non-violent character of the phenomenon is proposed.

KW - Concrete

KW - Damage

KW - Fracture

KW - High temperature

KW - Porous media

KW - Spalling

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JO - Computer Methods in Applied Mechanics and Engineering

JF - Computer Methods in Applied Mechanics and Engineering

IS - 41-43

ER -

Towards prediction of the thermal spalling risk through a multi-phase porous media model of concrete

Abstract

Keywords

ASJC Scopus subject areas

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