Journal
EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
Volume 49, Issue -, Pages 60-66Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.euromechsol.2014.06.001
Keywords
Damage identification; Digital image correlation (DIC); Love-Kirchhoff kinematics
Categories
Funding
- Saint-Gobain Recherche
- ANRT [2010/567]
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Plasterboards are tested in four-point bending up to failure, and digital image correlation is used to follow the kinematics and the progressive degradation of the structure all along the test. Although numerous distinct core cracks are clearly observed, it is proposed to identify the behavior of plasterboard through a homogenized continuum description where the progressive degradation of the bending stiffness is described through a damage law. A specific procedure for the identification is presented where experimental imperfections and symmetry breakdown are accepted and accounted for. The identification procedure is shown to provide constitutive parameters with a remarkably small variability. (C) 2014 Elsevier Masson SAS. All rights reserved.
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