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Inverse identification of the bond behavior for jute fibers in cementitious matrix

2016; Elsevier BV; Volume: 95; Linguagem: Inglês

10.1016/j.compositesb.2016.03.097

1879-1069

Saulo Rocha Ferreira, Enzo Martinelli, Marco Pepe, Flávio de Andrade Silva, Romildo Dias Tolêdo Filho,

Masonry and Concrete Structural Analysis

This paper analyzes the bond behavior of natural fibers in cement-based matrix. First, it presents the results of pull-out tests carried out on jute fibers embedded in a cementitious mortar. Then, the experimental results are employed in identifying the bond-slip relationship which describes the interaction between fiber and matrix. A theoretical model, capable of simulating the various stages of a pull-out test, is formulated and applied for an inverse identification of the bond-slip law. Finally, the obtained results demonstrate the soundness of the proposed theoretical interpretation for the bond behavior of jute fibers embedded in a cementitious matrix.