کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6707503 502935 2014 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The role of shear deformation in laminated plates with curvilinear fiber paths and embedded defects
ترجمه فارسی عنوان
نقش تغییر شکل برشی در صفحات ورقه ای با مسیرهای فیبر منحنی و نقاط تعبیه شده
کلمات کلیدی
قرار دادن فیبر اتوماتیک، روش فوریه گالکرین، شکافها و همپوشانی، کامپوزیت چند لایه ضخیم، ورقه های سختی متغیر،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی
Automated Fiber Placement (AFP) is an advanced technology used to manufacture laminated composites with curvilinear fiber paths. During the manufacturing, AFP generally leads to the formation of defects, e.g. gaps and overlaps, that impact the laminate properties, to an extent that largely depends on the geometry, such as thickness and curvature, of the part. This paper focuses on moderately-thick laminate plates that present gaps and overlaps induced by AFP. We use higher-order shear deformation theories to study the role of shear deformation on the plate responses. A hybrid Fourier-Galerkin method is used to obtain a semi-analytic solution describing the static deformation of the plate. Eigenvalue analysis is also conducted to determine its fundamental frequency and critical buckling load. The numeric results show that shear deformation has a more severe impact on the structural responses of a variable stiffness than a constant stiffness plate. We find also that gaps deteriorate the structural performance, while overlaps improve it. Maps representing structural responses, in particular buckling vs. deflection and frequency vs. deflection, are generated to gain insight into the design of a variable stiffness laminate plate with defects.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 118, December 2014, Pages 217-227
نویسندگان
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