کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
308844 513569 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the shear deformation modes in the framework of Generalized Beam Theory
ترجمه فارسی عنوان
در حالت تغییر شکل برش در چارچوب نظریه پرتو جملات
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی عمران و سازه
چکیده انگلیسی


• The GBT shear deformation modes for thin-walled members are addressed.
• Fundamental properties exhibited by the shear modes are derived.
• An efficient shear mode extraction procedure is presented and illustrated.
• Analytical results for several cross-section types are developed.

This paper extends previous work concerning the determination of cross-section deformation modes in thin-walled members with arbitrary polygonal cross-section, in the framework of Generalized Beam Theory (Gonçalves et al., 2010 [1]). In particular, the paper addresses the so-called “natural shear deformation modes” (i.e. the deformation modes that involve non-null membrane shear strains and are independent of the cross-section discretization employed), which are relevant for capturing the behaviour of thin-walled members with complex multi-cell cross-sections undergoing torsion and/or distortion. The contributions of the paper are (i) the derivation of fundamental properties of the shear modes, (ii) the proposal of an efficient mode extraction procedure and (iii) the development of analytical results for several particular cases. In order to illustrate the application of the proposed mode extraction procedure and demonstrate the validity of the derived properties, several cross-sections are analyzed, including complex multi-cell tubes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin-Walled Structures - Volume 84, November 2014, Pages 325–334
نویسندگان
, , ,