کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
295574 | 511557 | 2009 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Depth measurement of notches as models for shallow cracks in concrete
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
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چکیده انگلیسی
The objective of this research is to investigate how the stress wave propagation is affected by the various shallow notches when time-of-flight diffraction technique is utilized to measure the depth. Numerical and experimental tests were carried out on a specimen containing notches, from 10 to 100 mm in depth. Results show that if the pulse shape of initial disturbance is downward, notch depth is larger than the instrument configuration distance and the depth can be measured accurately by the recorded transit time. The upward initial disturbances also reveal that the notch depth is less than the instrument configuration distance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: NDT & E International - Volume 42, Issue 1, January 2009, Pages 69–76
Journal: NDT & E International - Volume 42, Issue 1, January 2009, Pages 69–76
نویسندگان
Tzunghao Liou, Chiamen Hsiao, Chia-Chi Cheng, Nienhao Chang,