Micromechanical properties and damage mechanism of fiber reinforced resin mineral composites
Fiber reinforced resin mineral composites have been widely used because of their excellent mechanical properties,but the damage mechanism of the materials is only studied at the macro level,and little attention is paid to the micromechanical properties and micro-crack evolution of the materials during the damage process.In order to solve this problem,a microscopic model of fiber resin mineral composite was established based on par-ticle flow discrete element technology,and the change law of the stress-strain curve of the material was ana-lyzed.The results show that the compressive strength of fiber reinforced resin mineral composite is higher than that of resin mineral composite,and the cracking stress and damage stress are greater.The shape of aggregate particles has little effect on the strengthening and toughening of fiber.Fiber has the effect of toughening and cracking resistance on resin mineral composite.This study reveals the damage properties of fiber reinforced resin mineral composite from the microscopic point of view,which can provide guidance for the popularization and ap-plication of this material.
fiber resin mineral composite materialmicromechanicsdamage mechanismparticle flow discrete ele-ment technique
万方数据
维普
