کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
251732 502941 2014 19 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Analysis of CFRP laminated plates with spatially varying non-Gaussian inhomogeneities using SFEM
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
پیش نمایش صفحه اول مقاله
Analysis of CFRP laminated plates with spatially varying non-Gaussian inhomogeneities using SFEM
چکیده انگلیسی

A stochastic finite element based methodology is developed for the uncertainty quantification and reliability analysis of laminated CFRP plates with spatially varying non-Gaussian random inhomogeneities. The material and strength properties in the individual laminae are modeled as 2-D non-Gaussian random fields whose second order probabilistic characteristics are determined from test data. The 2-D random field discretization procedure adopted enables representing the fields through a vector of correlated random variables that preserve the second order non-Gaussian characteristics of the field. Expressions are developed that enable the construction of the stochastic stiffness matrices that are dependent on these correlated random variables. Subsequently, the response analysis and failure probability estimation is carried out using Monte Carlo simulations. Discussions on the salient features of the proposed methodology are highlighted based on a set of illustrative numerical examples.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 112, June 2014, Pages 308–326
نویسندگان
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