کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6706016 | 502913 | 2016 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Full-field strain measurements at the micro-scale in fiber-reinforced composites using digital image correlation
ترجمه فارسی عنوان
اندازه گیری کرنش کامل در مقیاس میکرو در کامپوزیت های تقویت شده فیبر با استفاده از همبستگی تصویر دیجیتال
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
Few studies have been conducted to monitor inter-fiber deformations in fiber-reinforced composites. In the present work, we demonstrate full-field strain measurements in the composites at the micro-scale, using digital image correlation (DIC). The study is performed on a unidirectional glass fiber reinforced composite loaded in transverse three-point bending inside an environmental scanning electron microscope. A nano-scale random speckle pattern of high quality is created. Validity of the measured fields is assessed against results of a finite element (FE) model with boundary conditions retrieved from the experiment. A good agreement is found between the DIC-measured and FE-predicted results. The precise recognition of very small-scale strain concentrations requires enhancement of the correlation process and removal of microscopy imperfections. The investigated methodology shows promise for real-time deformation measurements in composites at the micro-scale.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 140, 15 April 2016, Pages 192-201
Journal: Composite Structures - Volume 140, 15 April 2016, Pages 192-201
نویسندگان
Mahoor Mehdikhani, Mohammadali Aravand, Baris Sabuncuoglu, Michaël G. Callens, Stepan V. Lomov, Larissa Gorbatikh,