کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5021648 | 1469370 | 2017 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A simple statistical approach to model the time-dependent response of polymers with reversible cross-links
ترجمه فارسی عنوان
یک رویکرد آماری ساده برای مدل واکنش وابسته به زمان از پلیمرها با پیوند های برگشت پذیر
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کلمات کلیدی
مواد فعال، پلیمرها، پیوند های دینامیک، آرامش استرس،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
چکیده انگلیسی
A new class of polymers characterized by dynamic cross-links is analyzed from a mechanical point of view. A thermodynamically consistent model is developed within the Lagrangian framework for polymers that can rearrange their internal cross-links. Such a class of polymers has the capability to reset their internal microstructure and the microscopic remodeling mechanism leads to a behavior similar to that of an elastic fluid. These materials can potentially be used in several fields, such as in biomechanics, smart materials, morphing materials to cite e few. However, a comprehensive understanding is necessary before we can predict their behavior and perform material design for advanced technologies. The proposed formulation -following a statistical approach adapted from classical rubber elasticity- is based on the evolution of the molecular chains' end-to-end distance distribution function. This distribution is allowed here to evolve with time, starting from an initial stress-free state and depending on the deformation history and the cross-link attachment/detachment kinetics. Some simple examples are finally presented and discussed to illustrate the capability and generality of the developed approach.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 115, 15 April 2017, Pages 257-265
Journal: Composites Part B: Engineering - Volume 115, 15 April 2017, Pages 257-265
نویسندگان
Roberto Brighenti, Franck J. Vernerey,