Acoustic Emission (AE) technique applied to detect the crack occurrence of the actual beam element. An optimum position for a limited number of AE transducer was considered to accurately detect the location of the cracks in the three-dimensional space. Six AE transducer was used to detect cracks in the L400mm×H200mm×T100mm region, and several position combinations were applied. Considerable six position combinations were selected, and the weak or incorrect position detection was investigated. The optimum position applied to the experiment for actual beam element and the detected crack position was compared with the visual inspection location. A reliable crack position detecting was confirmed for loadings.

• 강충현(전남대학교 해양토목공학과) | Kang Choong Hyun
• 허정원(전남대학교 해양토목공학과) | Huh Jung Won 교신저자
• 김태완(부산대학교 토목공학과) | Kim Tae Wan