Analytical simulation of tensile response of fabric reinforced cement based composites |
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| Affiliation: | 1. Department of Civil and Environmental Engineering, Arizona State University, P.O. Box 875306, Tempe, AZ 85287-5306, USA;2. Department of Structural Engineering, Ben Gurion University, Beer Sheva, Israel;1. Department of Civil Engineering, COPPE, Universidade Federal do Rio de Janeiro, P.O. Box 68506, CEP 21941-972, Rio de Janeiro, RJ, Brazil;2. School of Sustainable Engineering and the Built Environment, Arizona State University, Tempe, AZ, USA;3. Department of Civil Engineering, Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Rua Marques de São Vicente 225, 22451-900, Rio de Janeiro, RJ, Brazil;1. Dipartimento di Scienze e Ingegneria della Materia, dell’Ambiente ed Urbanistica, Università Politecnica delle Marche, Ancona, Italy;2. Dipartimento di Ingegneria Civile, Edile e Architettura, Università Politecnica delle Marche, Ancona, Italy;1. Politecnico di Milano, 20133 Milano, Italy;2. University of Bologna, 40126 Bologna, Italy;3. Missouri University of Science and Technology, Rolla, MO 65409, USA;1. ISISE, University of Minho, Department of Civil Engineering, Azurém, 4800-058, Guimarães, Portugal;2. Centre for Structural Engineering and Informatics, Department of Civil Engineering, The University of Nottingham, UK;3. University of Minho, Department of Civil Engineering, Azurém, 4800-058, Guimarães, Portugal |
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| Abstract: | A model simulating the tensile behavior of fabric–cement composites is presented to relate the properties of the matrix, fabric, interface and the damage parameters to the overall mechanical response of the composites. Crack spacing parameters measured during tensile tests are used to define the damage parameters, and related to the stiffness degradation as a function of the applied strain. This procedure is integrated in composite laminate theory using an incremental approach to model the uniaxial tensile response. Two approaches of linear and nonlinear fabric bridging models are used. The model is capable of using interface parameters for different fabrics, matrix properties, and processing parameters. Simulation results are studied by means of parametric simulation and a validation of a variety of experimental observations which vary the matrix formulation with flyash, changes in pressure after casting, and fabric type. |
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