کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10131720 1645544 2018 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental study on delamination growth of stiffened composite panels in compression after impact
ترجمه فارسی عنوان
بررسی تجربی بر روی رشد سلولی در پانل های کامپوزیت سفت شده در فشرده سازی پس از ضربه
کلمات کلیدی
پانلهای سفت و سخت تأثیر کم سرعت، فشرده سازی پس از ضربه، لرزش زیر لاین رشد دلایل سازی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
The purpose of this paper was to investigate the failure behaviors of composite stiffened panels with skin low-velocity impact (LVI) damage under axial compression. Barely visible impact damage (BVID) was introduced into the L-shaped and T-shaped stiffened panels within the skin between stiffeners. Compression after impact (CAI) tests were performed and delamination growth of specimens was observed directly. The results show that there are two types of delamination growth processes, which are unstable and stable respectively. Due to the restriction effect of the stiffener, the delamination growth is easier to initiate in the outer sublaminates on the smooth side of the skin compared to the ones on the stiffener side. In addition, according to the thermal-deply result, adjacent impact delaminations can be connected by matrix cracks, which results in a larger area of the sublaminate. It is revealed that buckling of the sublaminates and subsequent transverse delamination propagation in large area are the triggers leading to the final failure of the stiffened panel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 206, 15 December 2018, Pages 791-800
نویسندگان
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