کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
775931 898389 2006 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Observing ideal “self-similar” crack growth in experiments
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Observing ideal “self-similar” crack growth in experiments
چکیده انگلیسی

We here report on a detailed experimental study whose goal is to investigate spontaneous crack propagation in bonded and intact materials subjected to quasi-static far-field tensile loading. The cracks nucleate from a tiny circular hole and are triggered by an exploding wire. They subsequently propagate under the action of a constant far-field load. Dynamic photoelasticity in conjunction with high speed photography is used to capture the real-time photoelastic fringe patterns (isochromatics) associated with crack propagation. Dynamic stress intensity factors of propagating cracks are determined and the results are successfully compared with Broberg’s classical model of self-similar mode-I crack growth.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 73, Issue 18, December 2006, Pages 2748–2755
نویسندگان
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