development of fatigue constitutive model of fiber reinforced cementitious composites with multi-directional cracking

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This research focuses on the mechanics of fiber reinforced cementitiou composites especially under multi-directional cracking condition. To clarify the performance, experimental investigation was firstly conducted and the degradation of strength and stiffness were confirmed that were depending on the initial cracking angle and damage level. Based on the experimental result and the previous researches, the constitutive model was developed and verified by FEM. Furthermore, analysis was expanded to structural level especially in shear critical member. Through the results, applicability of the developed model were verified.