Computational nonlinear thermomechanical model of large light partition walls based on experimental analyzes and probabilistic models

T. T. Do (1, 2) , Christian Soize (1) , J.-V. Heck (2)

1 MSME - Laboratoire de Modélisation et Simulation Multi Echelle
2 CSTB - Centre Scientifique et Technique du Bâtiment

This paper is devoted to the construction of a computational nonlinear thermomechanical model of large light partition walls made up of cardboard-plasterboard-cardboard (CPC) plates screwed to a metallic frame, and is submitted to mechanical and thermal loadings induced by fire. The computational model, based on experimental analyzes and a probabilistic modeling, is developed for the prediction of a large light partition wall for (1) its linear thermal behavior, (2) its nonlinear mechanical behavior and (3) its nonlinear thermomechanical behavior.

Mots clés: Screw attachment; plasterboard; cardboard; experimental identification; thermomechanical; fire load; computational mechanics; uncertainty quantification

Domaines: Mécanique [physics.med-ph]; Ingénierie de l'environnement; Probabilités [math.PR]; Statistiques [math.ST]

T. T. Do, Christian Soize, J.-V. Heck. Computational nonlinear thermomechanical model of large light partition walls based on experimental analyzes and probabilistic models. Computer-Aided Civil and Infrastructure Engineering, 2013, 28 (2), pp.81-97. ⟨10.1111/j.1467-8667.2012.00782.x⟩. ⟨hal-00743717⟩