کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4917603 1428523 2018 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Study on the delamination behavior of thick composite laminates under low-energy impact
ترجمه فارسی عنوان
مطالعه رفتار خوشه بندی لمینیت کامپوزیت ضخیم تحت تاثیر انرژی کم
کلمات کلیدی
ورقه های کامپوزیتی، لایه لایه شدگی، مکانیزم آسیب، اثر کم انرژی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی

In order to study the delamination of thick composite laminates under low-energy impact, damage prediction and analysis were presented in this paper. The impact tests were carried out on specimens with three kinds of stacking sequence under three energy levels, and followed by the nondestructive tests to obtain the delamination region. Then numerical models were built to simulate the delamination behavior of composite laminates. The simulation results showed a good correlation to the experimental observations. Furthermore, delamination characteristics in plane and its extension through thickness direction were put forward. The delamination shape was found enclosed by Archimedes spiral and the fiber direction of the layer above and below. The delamination location was limited by the impact zone and the fiber distribution. In the thickness direction, the extension area was found decreased layer by layer. Moreover, the characteristics above were revealed through the analysis of damage mechanism. Finally, the verification of the predicted results was presented based on experiments. The realization of delamination prediction may contribute to evaluating residual strength and optimizing airplane structures.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 184, 15 January 2018, Pages 461-473
نویسندگان
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