کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5030387 1470671 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Refined Biaxial Test Procedures for the Determination of Design Elastic Constants of Architectural Fabrics
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Refined Biaxial Test Procedures for the Determination of Design Elastic Constants of Architectural Fabrics
چکیده انگلیسی

In today's structural design practice for textile structures, still one of the most challenging aspects is the determination of material stiffness parameters. The only constitutive law used in practice describes orthotropic linear-elastic stress-strain relations in the two principal directions. The elastic constants are “tensile modulus” and “Poisson's ratio”. In contrast, the actual stiffness behaviour of architectural textiles is nonlinear and nonelastic. Moreover, the potential high orthotropy of textiles is often not sufficiently covered by the test and evaluation methods available.This paper presents principles for refined biaxial test procedures that fit to the requirements of structural fabrics. As a result, sets of elastic constants for design purposes can be determined which ensure a very good correlation between measured and calculated strain on a specific stress level for all common PVC-coated polyester fabrics and PTFE-coated glass fibre fabrics. Furthermore, the refined method enables to model the very high transverse strains which are observed especially for glass-PTFE fabrics.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Engineering - Volume 155, 2016, Pages 211-219
نویسندگان
, ,