Numerical and experimental study on multi-directional SAFT to detect defects inside plain or reinforced concrete

作者：Wang Chung Yue; Liao Shu Tao; Tong Jian Hua^*; Chiu Chin Lung

来源：Construction and Building Materials, 2015, 76: 351-359.

DOI：10.1016/j.conbuildmat.2014.12.018

• Reinforced concrete NOT
• Defect image
• Elastic wave
• SAFT

This paper discusses the feasibility of detecting defects inside reinforced concrete (RC) structures by using multi-directional Synthetic Aperture Focusing Technique (SAFT) to create an image which contains the comprehensive information about the geometry of possible defects. This is achieved by scanning the structure in multiple directions and processing the response data with SAFT and proposed scheme so that the shape and the position of a defect or defects can be completely described. The demonstration was carried out in numerical and experimental aspects. Furthermore the correlation between the numerical and experimental results was analyzed in this paper.

• 出版日期2015-2-1
• 单位中央民族大学