کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9561785 | 1382378 | 2005 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Using the digital phase-shifting projection Moiré method and wavelet transformation to measure the deformation of a PMMA cantilever beam
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Using the digital phase-shifting projection Moiré method and wavelet transformation to measure the deformation of a PMMA cantilever beam Using the digital phase-shifting projection Moiré method and wavelet transformation to measure the deformation of a PMMA cantilever beam](/preview/png/9561785.png)
چکیده انگلیسی
In the present study, the digital projection Moiré method with wavelet transformation and phase-shifting technique has been applied to measure the out-of-plane deformation of a PMMA (polymethyl methacrylate) cantilever beam. In the digital projection Moiré method, the parallel grating lines are projected onto the specimen surface and captured by a CCD camera. The projection Moiré patterns are generated by the captured image and a virtual reference grating produced from the digital image process. Clear Moiré patterns can be obtained by the 2D Debauchies wavelet transformation. The phase-shifting method can also be realized by changing the phase of the virtual reference grating. Finally, the experimental results are compared with the calculations from the finite element method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 24, Issue 5, August 2005, Pages 576-582
Journal: Polymer Testing - Volume 24, Issue 5, August 2005, Pages 576-582
نویسندگان
Chia-Ming Liu, Lien-Wen Chen,