수치해석을 이용한 콘크리트의 균열저항곡선 해석 = Crack Resistance Curve Analysis of Concrete Using Numberical Analysis

다국어 초록 (Multilingual Abstract)

Predictions of crack process condition of concrete and fracture parameter have been investigated using the finite element method since concrete fracture mechanics has been introduced.
This study is to investigate on the prediction of fracture parameters measured from concrete by applying numerical interpretations based on fracture interpretations of crack process. As the stress from crack tip reached maximum value the crack initiated, and as an unstable crack critical load( P_(IC)) the specimen started to spread and finally to fail. Fracture characteristics values were calculated including effective crack length(a_(e)) and R-curve start point of unstable crack(a_(IC)), which occur due to the working load in nonlinear minute crack of the crack tip.