کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1706832 1012479 2009 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Simplified stress correction factor to study the dynamic behavior of a cracked beam
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
Simplified stress correction factor to study the dynamic behavior of a cracked beam
چکیده انگلیسی

In this work a simplified formula for the stress correction factor in terms of the crack depth to the beam height ratio, f(a/h), is presented. The modified formula is compared to a well-known similar factor in the literature, and shows a good agreement for a/h lower than 0.5. The modified formula is used to examine the lateral vibration of an Euler–Bernoulli beam with a single-edge open crack. This is done through introducing the flexibility scalar. This scalar can be generated from the Irwins’s relationship using the modified factor f(a/h). The crack in this case is represented as rotational spring. With the modified model, beam configurations with classical and non-classical support conditions could be studied.The mode shapes for the cracked and the uncracked beam are obtained using this model. They are displayed graphically for selected values of the system parameters; the crack depth ratio a/h, and the crack location ratio s/L. The shift in the mode shape due to the existence of a crack is highlighted. The obtained results showed good agreement with similar published studies.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematical Modelling - Volume 33, Issue 1, January 2009, Pages 127–139
نویسندگان
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