کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6703592 1428513 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of stiffener configuration on post-buckled response of composite panels with impact damages
ترجمه فارسی عنوان
تأثیر پیکربندی سفتنر بر پاسخ پس از بک لک کامپوزیت با آسیب دیدگی
کلمات کلیدی
سقوط بار، کامپوزیت تجزیه و تحلیل عنصر محدود، خسارت ناشی از ضربه، پس از خم شدن، پانل سفت و محکم
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
In this paper, the effect of T, I and J stiffer configurations on post-buckling response of composite stiffened panels with impact damage is investigated through experiments and numerical simulations. Two identical panels in all three configurations were designed and manufactured. Each panel has four stringers of the same type. All panels were designed to have a skin buckling load of 92 kN ± 5 kN and weight of 1.45 kg ± 0.05 kg to separate the effect of impact damage irrespective of stiffener type. One panel from each configuration is impacted with 50 J energy above stiffener flange from skin side to create a Barely Visible Impact Damage (BVID) and followed by a compression test till collapse. A comparative study between pristine and impacted panels is presented. The effect of impact damage on buckling load, post-buckling response, collapse load and end-shortening were investigated. Moreover, finite element numerical models were developed for all panels which include intra-laminar and inter-laminar damage initiation and growth models. Impact damage area measured from ultrasonic C-scan was modelled in commercial finite element software Abaqus®. Failure modes in pristine and impacted panels such as disbond, tearing of stiffener web and locations from experiments are discussed and validated by numerical simulations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 194, 15 June 2018, Pages 433-444
نویسندگان
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