کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
251073 502921 2015 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Hybrid analysis and optimization of hierarchical stiffened plates based on asymptotic homogenization method
ترجمه فارسی عنوان
تجزیه و تحلیل ترکیبی و بهینه سازی صفحات سفت و سخت سلسله مراتبی بر اساس روش همگن سازی آشوپتیک
کلمات کلیدی
سلسله مراتبی ورق سفت و سخت، کامپوزیت، روش همگن سازی همبستگی، خم شدن بهینه سازی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی

As a potential aerospace structural concept, hierarchical stiffened plates under axial compression are characterized by multiple local features, which lead to the buckling analysis and optimization suffering from heavy computational costs, by means of exact Finite Element Method (FEM). Thus, an efficient and simple hybrid framework for the buckling analysis and optimization of hierarchical stiffened plates is presented in this study. Firstly, the skin and minor stiffeners are equivalent to an unstiffened anisotropic plate based on a novel numerical implementation of asymptotic homogenization method (NIAH), which can be easily realized using commercial software as a black box, indicating a strong applicability for rather complicated minor stiffener configurations. Then, the equivalent plate together with major stiffeners can be treated as a hybrid model to be calculated by FEM. Further, a surrogate-based optimization based on this hybrid model is performed. Finally, three illustrative examples are established to demonstrate the effectiveness and simplicity of the proposed framework.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 132, 15 November 2015, Pages 136–147
نویسندگان
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