کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5206224 1502954 2014 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A new multiaxial loading test for investigating the mechanical behaviour of polymers
ترجمه فارسی عنوان
یک آزمایش بارگیری جدید چند بعدی برای بررسی رفتار مکانیکی پلیمرها
کلمات کلیدی
تست پلیمر، آزمون کششی / فشرده سازی / پیچشی، بارگذاری چند آمپر، پلی پروپیلن،
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
In order to investigate polymer mechanical behaviour more closely and define corresponding numerical behaviour models, a new experimental set-up was developed for performing multiaxial loading tests. Some of the loading possibilities are presented here for the case of a copolymer polypropylene (PPC7712). A single moulded sample of this material was mounted on this original apparatus, which was specially designed for studying complex trajectories, including proportional and non-proportional cycles, in which the axial and shear deformation can be simultaneously and independently controlled. Tension/compression/torsion tests were performed on the polypropylene material, spanning all four quadrants of the axial/torsional strain subspace. Under the conditions tested, the effect of strain history on the stress-strain response is hardly observed for this material. The qualitatively different behaviour observed depending on the strain path might be attributable to the asymmetry between the axial/torsional and tension/compression loads.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 36, June 2014, Pages 32-43
نویسندگان
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