Abstract
The contribution of fiber reinforcement to shear moduli and shear strength of granular material has been widely investigated by geotechnical engineering. A modelling approach for evaluating the constitutive behavior of fiber reinforced granular material has been required for predicting the deformability of fiber reinforced ground. In this study, the deformation property of fibrous material in fiber reinforced granular material is investigated for the purpose of fabricating a new constitutive model based on rule of mixture. Furthermore, the relevance of deformation property between fibrous material and granular material is considered from test results. The deformation property of fibrous material represents a tensile behavior on initial deformation, and finally pull-out behavior is observed. It is also considered that the deformation of fiber is progressed with equal to strain energy increment of granular material.
