کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
732992 | 893299 | 2010 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Finite element modeling of the interaction of laser-generated ultrasound with a surface-breaking notch in an elastic plate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Finite element modeling of the interaction of laser-generated ultrasound with a surface-breaking notch in an elastic plate Finite element modeling of the interaction of laser-generated ultrasound with a surface-breaking notch in an elastic plate](/preview/png/732992.png)
چکیده انگلیسی
The interaction of surface acoustic waves generated by laser line source in the thermoelastic regime with surface notches are investigated. The finite element method is used to establish the model of the transient displacement field for surface notches with various depths and orientation. The magnitude of the signal enhancement in the near field and the mechanism by which this occurs are explained. The positions of notches were evaluated by the reflected Rayleigh wave. The depths and orientations of the notches were also determined using a shear wave that was generated through mode conversion of a surface acoustic wave at the notch tip. The results agree with previously published experimental measurements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 42, Issue 4, June 2010, Pages 693–697
Journal: Optics & Laser Technology - Volume 42, Issue 4, June 2010, Pages 693–697
نویسندگان
Yong Dai, Bai Qiang Xu, Ying Luo, Hong Li, Gui Dong Xu,