کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4928393 1432073 2017 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of hole reinforcement on the buckling behaviour of thin-walled beams subjected to combined loading
ترجمه فارسی عنوان
اثر تقویت سوراخ بر رفتار خمشی از پرتوهای نازک دیوار تحت بارگذاری ترکیبی
کلمات کلیدی
استرس انقباض تقویت سوراخ، تجزیه و تحلیل عنصر محدود، پرتو نازک دیواره، بارگذاری ترکیبی باز کردن وب، برش برش
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
In this study, the effect of hole reinforcement on the buckling behaviour of thin-walled structures mostly used in aircrafts is investigated under combined loads. A fuselage floor beam with real dimensions is used for the buckling analysis, and a parametric study based on several loading scenarios is considered. Investigated structures include different ratios of hole diameter to reinforcement width (d/w), ratios of reinforcement height to web plate thickness (h/t), and the aspect ratio of the web plate (a/b). The material of the thin walled structure is Al 7075 series. The commercial finite element analysis program, ABAQUS, is used for buckling analysis. The loading scenarios such as compression, shear, and bending, as well as combined loading are considered using a validated finite element model. For the selected range of geometrical parameters, buckling loads and allowable buckling stresses are computed. Furthermore, compression, shear and bending rates are calculated, and the interaction curves are plotted with the help of data obtained from the finite element studies. The effect of loading scenario on the buckling strength is compared for beam without a hole, with a hole and with a hole plus reinforcement cases. The main goal of this study is to provide engineers graphical data that can be used to check whether or not a structure will fail under several defined load cases including combined loading.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin-Walled Structures - Volume 118, September 2017, Pages 12-22
نویسندگان
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