کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7132387 1461712 2016 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Accurate kinematic measurement at interfaces between dissimilar materials using conforming finite-element-based digital image correlation
ترجمه فارسی عنوان
اندازه گیری دقیق سینماتیک در رابط های بین مواد متفاوتی با استفاده از همبستگی تصویر دیجیتال مبتنی بر عددی محدود
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی برق و الکترونیک
چکیده انگلیسی
Digital image correlation (DIC) is now an extensively applied full-field measurement technique with subpixel accuracy. A systematic drawback of this technique, however, is the smoothening of the kinematic field (e.g., displacement and strains) across interfaces between dissimilar materials, where the deformation gradient is known to be large. This can become an issue when a high level of accuracy is needed, for example, in the interfacial region of composites or joints. In this work, we described the application of global conforming finite-element-based DIC technique to obtain precise kinematic fields at interfaces between dissimilar materials. Speckle images from both numerical and actual experiments processed by the described global DIC technique better captured sharp strain gradient at the interface than local subset-based DIC.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics and Lasers in Engineering - Volume 81, June 2016, Pages 103-112
نویسندگان
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