کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6705850 | 502909 | 2016 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Geometrically nonlinear transient analysis of composite laminated plate and shells subjected to low-velocity impact
ترجمه فارسی عنوان
تجزیه و تحلیل گذرا هندسی غیر خطی از ورقه های چند لایه کامپوزیتی و پوسته های تحت تاثیر کم سرعت
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کلمات کلیدی
تجزیه و تحلیل غیر خطی هندسی، ورقه های کامپوزیتی، پوسته سیلندر، تأثیر کم سرعت، برنامه عنصر محدود
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
In this study, the transient responses of a composite laminated plate and cylindrical shells subjected to low-velocity impacts were investigated numerically. The shear deformation theory of a doubly curved shell and von Karman's large deflection theory were used to develop a geometrically nonlinear finite element program. It is well-known that in the case of a flat plate with fixed boundary edges, a geometrically nonlinear analysis yields larger contact forces and smaller deflections than a corresponding linear analysis. However, in the case of cylindrical shells, an opposite result was found in this study; a geometrically nonlinear analysis exhibited smaller contact forces and larger deflections than a corresponding linear analysis. The reason for this opposite result is described in this study. Conversely, with a plate and shells that have the same size, shells with a larger curvature exhibited smaller deflections and larger contact forces. The strain distribution at the bottom surface of the plate/shells using the geometrically nonlinear analysis exhibited markedly or only marginally larger tensile areas than those produced using the linear analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 142, 10 May 2016, Pages 7-14
Journal: Composite Structures - Volume 142, 10 May 2016, Pages 7-14
نویسندگان
I.H. Choi,