کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6711397 | 1428719 | 2018 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Characterization of damage in concrete beams under bending with Acoustic Emission Technique (AET)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
This paper aims to improve knowledge on the degradation mechanisms of concrete beams subjected to flexural loading by using the Acoustic Emission Technique (AET). A strong correlation between damage evolution and acoustic emission activities was highlighted. Damage severity was also assessed by means of the Calm and Load ratio classification and the results obtained were in good agreement with those of mechanical testing. Empirical laws describing the relationship between damage evolution and acoustic emission activities were proposed in order to predict the degradation state of the material from AE activities and it seems that these laws depend only on the type of material tested. Finally, an analysis of the waveforms associated with one event (namely the same source) was carried out. The results show the difficulty of identifying a specific source from the AE signature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Construction and Building Materials - Volume 187, 30 October 2018, Pages 487-500
Journal: Construction and Building Materials - Volume 187, 30 October 2018, Pages 487-500
نویسندگان
Tam Nguyen-Tat, Narintsoa Ranaivomanana, Jean-Paul Balayssac,