Modeling of cement based composite laminates

Title: Modeling of cement based composite laminates
Author(s): B. Mobasher
Paper category : conference
Book title: International Workshop High Performance Fiber Reinforced Cement Composites
Editor(s): A. E. Naaman and H. W. Reinhardt
Print-ISBN: 2-912143-38-1
e-ISBN: 2912143799
Publisher: RILEM Publications SARL
Publication year: 2003
Pages: 81 - 93
Total Pages: 13
Nb references: 14
Language: English

Abstract: Techniques for modeling cement-based and FRP composites intended for structural based applications are presented using a micromechanical model to simulate the mechanical response. A layer model is used and the property of each layer is specified using the various materials considered in the stacking sequence. The overall axial and bending stiffness matrix is obtained next. A stress based failure criterion is used for the initiation of cracking. As the cracking saturates in the specimen, it results in gradual degradation of stiffness under loading. A continuum damage model is applied to account for the distributed cracking using a scalar damage function. The model predicts the response of unidirectional lamina under tensile loading in longitudinal and transverse directions, and extended to cross ply and angle composites. Using several case studies the load-deformation response under tension and flexural of various structural systems are studied. These case studies include various composite systems such as glass-epoxy systems, fabric reinforced epoxy, cement based cross ply laminates, and composite retrofit systems. It is shown that by selection of proper modeling approach, parameter measurement, and theoretical modeling, a wide range of analysis tools and design guidelines for structural applications of FRC materials are attainable.

Online publication: 2003-04-28
Publication type : abstract_only
Public price (Euros): 0.00