서지주요정보
초기재령 콘크리트의 파괴특성 = Fracture characteristics of concrete at early ages
서명 / 저자 초기재령 콘크리트의 파괴특성 = Fracture characteristics of concrete at early ages / 이윤.
저자명 이윤 ; Lee, Yun
발행사항 [대전 : 한국과학기술원, 2001].
Online Access 원문보기 원문인쇄

소장정보

등록번호

8011824

소장위치/청구기호

학술문화관(문화관) 보존서고

MCE 01013

SMS전송

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초록정보

The objective of this study is to examine the fracture characteristics of concrete at early ages such as critical stress intensity factor, critical crack-tip opening displacement, fracture energy, and bilinear softening curve based on the concepts of the effective-elastic crack model and the cohesive crack model. A wedge splitting test for Mode I was performed on cubic wedge specimens with a notch at the edge. By varying strength and age, load-crack mouth opening displacement curves were obtained and the results were analyzed by linear elastic fracture mechanics and the finite element method. The results from the test and analysis showed that critical stress intensity factor and fracture energy increased, and critical crack-tip opening displacement decreased with concrete age from 1 day to 28 days. By numerical analysis, four parameters of bilinear softening curve from 1 day to 28 days were obtained. The obtained fracture parameters and bilinear softening curves at early ages may be used as a fracture criterion and an input data for finite element analysis of concrete at early ages.

서지기타정보

서지기타정보
청구기호 {MCE 01013
형태사항 iii, 74 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Yun Lee
지도교수의 한글표기 : 김진근
지도교수의 영문표기 : Jin-Keun Kim
학위논문 학위논문(석사) - 한국과학기술원 : 토목공학과,
서지주기 참고문헌 : p. 72-74
주제 콘크리트
초기재령
연화곡선
파괴
균열
fracture
concrete
age
softening
crack
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