Nonlinear parameter identification of models for masonry |
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| Affiliation: | 1. Université Paris-Est, IFSTTAR, F-77447 Champs sur Marne, France;2. Institute of Scientifc Computing, Technische Universität Braunschweig, D-38106 Braunschweig, Germany;1. Trelleborg Industrial Anti-Vibration Systems, Leicester LE4 2BN, UK;2. Department of Railway Engineering, School of Civil Engineering, Central South University, Changsha, Hunan 410075, China;3. Centre for Transport Studies, University College London, London WC1E 6BT, UK;1. National Institute of Standards and Technology, United States;2. The Boeing Company, United States;1. Department of Mechanical Engineering, University of Porto, Porto, Portugal;2. Institute of Science and Innovation in Mechanical and Industrial Engineering (INEGI), Porto, Portugal;1. University of Ljubljana, Faculty of Civil and Geodetic Engineering, Jamova cesta 2, 1000 Ljubljana, Slovenia;2. Université de Technologie de Compiègne – Alliance Sorbonne Université, Laboratoire Roberval, FRE UTC-CNRS 2012, Centre de Recherches de Royallieu, 60200 Compiègne, France |
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| Abstract: | This paper investigates the parameter estimation problem for brick masonry models. An identification procedure is proposed in which the uncertainties of known parameters and/or errors of measurements are its elements of distinction. The minimization process of the discrepancies between experimental data and theoretical measurements takes place by means of a first order iterative method. The identification procedure is applied to two different problems: the calibration of an interface model for brick–mortar joint in its functional form through monotonic experimental tests; to evaluate the unknown parameters of a continuum model for brick masonry walls in its non-holonomic form by means of in-plane cyclic shear–compression test of masonry panels. The general framework of the non-linear estimate methodology, the parameter identification problems and the numerical results are presented. |
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