کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5205663 | 1502932 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Fading memory of deformation history in carbon black-filled thermoplastic elastomers
ترجمه فارسی عنوان
حافظه فواید تاریخ تغییر شکل در الاستومر های گرمانرم کربن سیاه
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
چکیده انگلیسی
Observations are reported on a carbon black-reinforced thermoplastic elastomer in multistep uniaxial tensile cyclic tests with a mixed deformation program (oscillations between maximum elongation ratios kmax and various minimum stresses Ïmin with kmax monotonically increasing with number of cycles n). Fading memory of deformation history is demonstrated: when specimens are subjected to two loading programs that differ along the first n â1 cycles of deformation and coincide afterwards, their stress-strain diagrams become identical starting from the nth cycle. A constitutive model is developed in cyclic viscoplasticity with finite deformations, and its adjustable parameters are found by fitting the observations. Ability of the stress-strain relations to describe the fading memory phenomenon and to predict the mechanical response of polymer composites in multi-step cyclic tests with large strains is confirmed by numerical simulation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 58, April 2017, Pages 1-12
Journal: Polymer Testing - Volume 58, April 2017, Pages 1-12
نویسندگان
Necmi Dusunceli, Aleksey D. Drozdov,