Bulletin of the Polish Academy of Sciences. Technical Sciences | |
Ultrasound monitoring for evaluation of damage in reinforced concrete | |
M. RuckaCorresponding authorDepartment of Structural Mechanics, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 11/12 Narutowicza St., 80-233 Gda?sk, PolandEmailOther articles by this author:De Gruyter OnlineGoogle Scholar1  K. WildeDepartment of Structural Mechanics, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 11/12 Narutowicza St., 80-233 Gda?sk, PolandOther articles by this author:De Gruyter OnlineGoogle Scholar1  | |
[1] Department of Structural Mechanics, Faculty of Civil and Environmental Engineering, Gdansk University of Technology, 11/12 Narutowicza St., 80-233 Gda?sk, Poland | |
关键词: Keywords : concrete; degradation; micro-cracking; non-destructive evaluation; ultrasonic waves; | |
DOI : 10.1515/bpasts-2015-0008 | |
学科分类:工程和技术(综合) | |
来源: Polska Akademia Nauk * Centrum Upowszechniania Nauki / Polish Academy of Sciences, Center for the Advancement of Science | |
【 摘 要 】
The paper deals with automated monitoring of damage evolution in concrete elements subjected to three-point bending tests. The monitoring is based on the nonlinear interactions of traveling ultrasonic waves with micro-crack zones inside the concrete specimens and surface-breaking cracks. The developed procedure assumes semi-continuous ultrasonic testing during the element full loading cycle and generation of the power spectral density maps for the on-line assessment of the degradation process. Two damage indicators are introduced to evaluate micro- and macro-damage. The preliminary experimental results show that the proposed automated monitoring system provides an effective method for the evaluation of progressive damage in concrete.
【 授权许可】
Unknown
【 预 览 】
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