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Simulation about effect on explosion spalling of thermal stress and vapor pressure



Title: Simulation about effect on explosion spalling of thermal stress and vapor pressure
Author(s): H. Nakamura, K. Yoshida, M. Kunieda, N. Ueda, Y. Yamamoto and M. Ozawa
Paper category : conference
Book title: 2nd International RILEM Workshop on Concrete Spalling due to Fire Exposure
Editor(s): E.A.B. Koenders and F. Dehn
ISBN: 978-2-35158-118-6
e-ISBN: 978-2-35158-119-3
Publisher: RILEM Publications SARL
Publication year: 2011
Pages: 213 - 219
Total Pages: 7
Nb references: 3
Language: English


Abstract: The effect on explosion spalling of thermal stress and vapor pressure was investigated numerically using a developed method in order to simulate fire explosion behavior. In the method, 3-dimensional Rigid Body Spring Model (RBSM) based on dynamic equation of motion as structural analysis and truss network model as mass transfer analysis were integrated. It was understood by the numerical results that the contributions of thermal stress and vapor pressure depend on the boundary conditions for the constraint of thermal expansion deformation. Although the vapor pressure is usually main factor of explosion spalling, the effect of thermal stress may become predominant under the constraint boundary condition.


Online publication: 2012-01-17
Publication type : full_text
Public price (Euros): 0.00