Browse > Article
http://dx.doi.org/10.4334/JKCI.2002.14.2.266

Investigation of the Stress-Wave Propagation In Improve the Reliability of the Impact-Echo Method  

조미라 (중앙대학교 토목공학과)
Publication Information
Journal of the Korea Concrete Institute / v.14, no.2, 2002 , pp. 266-274 More about this Journal
Abstract
The impact-echo test, which is to evaluate the integrity of concrete and masonry structures nondestructively, is an excellent method in the practical application. However, there are cases that the Impact-Echo testing nay result in the low reliability. In this study, the reliability of the Impact-Echo testing was investigated through the numerical simulation of the Impact-Echo testing. The finite element analysis and the analysis based on the dynamic stiffness matrix method was incorporated for the numerical simulation, in which the cases of a sandwiched shear stiffness, an incr＋easing or decreasing stiffness, and a homogeneous stiffness. Based on the results of the analysis were considered, this study proposed the approaches to Improve the reliability of the Impact-Echo testing.
Keywords
impact-echo test; finite element analysis; dynamic stiffness matrix method; wave propagation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 조미라, 김기봉, 조성호, “콘크리트 구조물 비파괴 평가를 위한 수정충격반향 기법의 제안." 중앙대학교건설 환경연구소 논문집, 12권 l호, 2001.
2 조미라, “다채널 충격반향기법과 그 역산해석을 위한 인공신경망,” 대한토목학회 논문집, 2001.   과학기술학회마을
3 Joh, S. H., Fit SASW : The Program for the Forward Modeling, the Inversion Analysis and the Time-History Generation for SASW Measurements, Chung-Ang University, Korea, 2001.
4 조성호, 배규진, 나경준, 이성원, 오상덕, “터널국부정밀 안전진단을 위한 탄성파 기법의 적용성에 관한 연구,” 1998, pp.415-422.   과학기술학회마을
5 김기봉, 추진호, 조성호, 조미라, “터널 콘크리트 라이닝의 구조적 특성평기를 위한 탄성파기법, MiSA의 개발." 한국지반공학회, 봄학술발표회 논문집, 2001, pp.49- 56.   과학기술학회마을
6 Sansalone, M. J., Lin, J. M. and Streett, W. B, "A New Procedure for Determining the Thickness of Concrete Highway Pavements Using Surface Wave Speed Measurements and the Impact-Echo Method," Innovations in Node-structive Testing, a Special Publication of the American Concrete Institute, 1996.
7 Sansalone, M. J., Streett, W. B., IMPACT-ECHO: Nondestructive Evaluation of Concrete and Masonry, Bullbrier Press, 1997, p.339.