کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9704735 1464185 2005 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Real-time measurement on deformation fields of notched samples under impact tension
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Real-time measurement on deformation fields of notched samples under impact tension
چکیده انگلیسی
In this paper, a real-time and in situ optical measuring system is reported to observe high-velocity deformations of samples subjected to impact loading. The system consists of a high-speed camera, a He-Ne laser, a frame grabber, a synchronization device and analysis software based on digital correlation theory. The optical system has been adapted to investigate the dynamic deformation field and its evolution in notched samples loaded by an split Hopkinson tension bar, with a resolution of 50μm and an accuracy of 0.5μm. Results obtained in experiments are discussed and compared with numerical simulations. It is shown that the measuring system is effective and valid.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Impact Engineering - Volume 31, Issue 4, April 2005, Pages 329-339
نویسندگان
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