کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5449115 1512521 2017 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Special considerations in reflective coherent gradient sensing method for measuring large deformations
ترجمه فارسی عنوان
ملاحظات ویژه در روش سنجش شیب انعطاف پذیر برای اندازه گیری تغییرات بزرگ
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
چکیده انگلیسی
In this study, reflective coherent gradient sensing (CGS) method is introduced to measure large deformations of Ni-Cr alloy in instrumented indentation. The effects of grating distance, collimation property of incident beam, camera lens focal length, screen and specimen location are analyzed. The presence or absence of screen and the camera lens focal length are found out to be the most important factors when measuring large deformations with CGS method. Moreover, we develop a method to obtain the 'true' interferograms by Fourier and inverse Fourier transformation algorithms. The measuring scale of reflective CGS method for large deformation is obtained. A criterion is developed to distinguish the boundaries between small and large deformations in measuring inhomogeneous deformations with reflective CGS method.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics Communications - Volume 402, 1 November 2017, Pages 641-652
نویسندگان
, , ,