폴리머침투콘크리트 휨부재의 비선형 파괴해석

Nonlinear Fracture Analysis of Polymer-Impregnated Concrete Flextural Members

The objective of this study is to develop analytical techniques of polymer impregnated concrete flexural members for its proper applications. crystalline methylmethacrylate(MMA) is chosen as a monomer of polymer impregnants, On the basis of members. fracture toughness, fracture energy , critical crack width, and tension softening relations near crack tip are formulated in terms of member depth, initial notch length and the flexural strength of normal concrete. The structural analysis rocedure and the finite element computer program developed in the study are applicable to evaluate elastic behavior, ultimate strength, and tension softening behavior of MMA type PIC structural members subject to various loading conditions. It is concluded that the developed structural analysis procedure and the finite element computer program are applicable to analysis and design of in-situ and precast PIC structural members.