INVESTIGATION ON BOND BEHAVIOR OF GLASS MULTIFILAMENTS YARN EMBEDDED IN CEMENTITIOUS MATRIX

Hana. Aljewifi (1) , Xiao. Bing. Zhang (2)

1 L2MGC - Laboratoire de mécanique et matériaux du génie civil
2 LAMI - Laboratoire de Mécanique et Ingénieries

The study of the interaction between multi-filament yarn and cementitious matrix can give a good comprehension of bond and failure mechanism of this type of composite. This study may be carried out by means of pull-out test which is an applicable tool to investigate the shear bond properties. In order to better understand the bond behavior of a continues glass fiber /matrix system, in this work a series of pull-out tests is performed with different types of fiber. Applied a uniform tensile load uniaxial from one side on the composite, hence matrix cracking strength are required as soon as crack begin formed along continuous fiber. Furthermore, it has been shown that the load bearing capacity do not only depend on the properties of materials constitutive (micro concrete / fibers) but in reality the principal feature depends on the interaction of the fiber and the matrix. This interaction between fiber and matrix is characterized by different parameters such as bond strengths Gc, τc, bond modulus k, ascending stiffness kbond, descending stiffness kdebond and pull-out toughness A. These parameters are determined from pull-out experiment curves for different types of fiber. The comparison of these parameters for different types of fiber allows us to analyse the bond behaviour of the fiber/matrix system.

Domaines: Matériaux et structures en mécanique [physics.class-ph]; Matériaux et structures en mécanique [physics.class-ph]; Matériaux

Hana. Aljewifi, Xiao. Bing. Zhang. INVESTIGATION ON BOND BEHAVIOR OF GLASS MULTIFILAMENTS YARN EMBEDDED IN CEMENTITIOUS MATRIX. 14TH EUROPEAN CONFERENCE ON COMPOSITE MATERIALS, ECCM-14, Jun 2010, Budapest, Hungary. ⟨hal-00563830⟩