کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5187542 1381131 2005 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Non-linear, rate-dependent strain-hardening behavior of polymer glasses
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
پیش نمایش صفحه اول مقاله
Non-linear, rate-dependent strain-hardening behavior of polymer glasses
چکیده انگلیسی

This study is concerned with the finite, large strain deformation behavior of polymeric glasses. True stress-strain curves in uniaxial compression obtained for five different polymeric glasses: polycarbonate, polystyrene, poly(2,6-dimethyl-1,4-phenylene oxide), and linear and cross-linked poly(methylmethacrylate), revealed a strain-hardening response during plastic deformation that is strain-rate dependent and deviates from neo-Hookean behavior. An empirical modification of the so-called compressible Leonov model by a strain dependent activation volume is suggested, which describes the strain-rate dependent large strain behavior of these glassy polymers in good agreement with experimental data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer - Volume 46, Issue 25, 28 November 2005, Pages 11786-11797
نویسندگان
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