کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7890701 1509884 2016 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Development, characterization and analysis of auxetic structures from braided composites and study the influence of material and structural parameters
ترجمه فارسی عنوان
توسعه، تعیین و تحلیل ساختارهای اکسیژن از کامپوزیت های بافته شده و بررسی تاثیر پارامترهای مادی و ساختاری
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی
Auxetic materials are gaining special interest in technical sectors due to their attractive mechanical behaviour. This paper reports a systematic investigation on missing rib design based auxetic structures produced from braided composites for civil engineering applications. The influence of various structural and material parameters on auxetic and mechanical properties was thoroughly investigated. The basic structures were also modified with straight longitudinal rods to enhance their strengthening potential in structural elements. Additionally, a new analytical model was proposed to predict Poisson's ratio through a semi empirical approach. Auxetic and tensile behaviours were also predicted using finite element analysis. The auxetic and tensile behaviours were observed to be more strongly dependent on their structural parameters than the material parameters. The developed analytical models could well predict the auxetic behaviour of these structures except at very low or high strains. Good agreement was also observed between the experimental results and numerical analysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part A: Applied Science and Manufacturing - Volume 87, August 2016, Pages 86-97
نویسندگان
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