کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6777744 | 1432064 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Linear and nonlinear elastic buckling of stereolithography resin egg-shaped shells subjected to external pressure
ترجمه فارسی عنوان
پوسته شدن خطی و غیر خطی استریولیتوگرافی پوسته های شکل تخم مرغ تحت فشار خارجی
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کلمات کلیدی
خم شدن پوسته تخم مرغی شکل، فشار خارجی، نقص هندسی، نمونه سازی سریع،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
This study explored the elastic buckling of egg-shaped shells made of stereolithography resin. The shells had identical nominal geometry parameters with the thickness of 2â¯mm, the major axis of 232â¯mm, and the minor axis of 160â¯mm, respectively. Five near-perfect laboratory-scale models were fabricated using stereolithography appearance (SLA), a rapid prototyping technique. Each model was scanned by a three-dimensional optical scanner, measured using a micrometer, and tested in a pressure chamber. The buckling behaviours of egg-shaped shells with deterministic geometric imperfections were experimentally, analytically, and numerically analysed. The perfect egg-shaped shell was also compared with the fabricated egg-shaped models. A good agreement among them was obtained. The remarkable experimental results of egg-shaped shells were presented in this paper by using 3D printing technologies, which shows the high machining accuracy of 3D printing technologies and provides a new solution for the limitation of experimental study into non-typical shells of revolution. Also, the study could provide a new non-typical shell structure and its stability evaluation approach for space vehicles, pressure tanks, and pressure hulls.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin-Walled Structures - Volume 127, June 2018, Pages 516-522
Journal: Thin-Walled Structures - Volume 127, June 2018, Pages 516-522
نویسندگان
Minglu Wang, Jian Zhang, Weimin Wang, Wenxian Tang,