Prediction of Mechanical Properties of Glass Fiber Reinforced Concrete Using Micromechanical Techniques

Glass fibers have been used in concrete at low volume fractions to effectively control cracks in various types of structural elements.Due to its complex nature, determining the mechanical properties of the glass fiber reinforced concrete is a challenging task.This paper aims to evaluate the Young's modulus, shear modulus and Poisson ratio of glass fiber reinforced concrete with homogenization theory and finite element simulation.In order to predict the above properties of glass fiber reinforced concrete, a theoretical model was established by homogenization theory.The elastic tensor matrix of unidirectionally distributed fiber reinforced concrete composites was solved by stimulating the composite representative volume element model using Abaqus software to obtain the Young's modulus, shear modulus and Poisson ratio of glass fiber reinforced concrete.By comparison, it was found that the theoretically predicted values by homogenization and the finite element simulation values were in good agreement, which verifies the accuracy of both the models.