کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6702640 | 1428505 | 2018 | 32 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Micromechanical modeling of water-induced interfacial failure of ramie fiber reinforced thermoplastic composites
ترجمه فارسی عنوان
مدلسازی میکرومکانیکی شکست ناپذیری ناشی از آب از کامپوزیت های ترموپلاستیک تقویت شده با فیبر رامی
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
فیبر طبیعی، رابط، جذب آب، مدل سازی تحلیلی،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی عمران و سازه
چکیده انگلیسی
This paper proposed a micromechanical model to describe water-induced interfacial failure of natural plant fiber reinforced composites. The model was built with the consideration of fiber swelling, thick-wall cylinder deformation and analysis of shear-lag effect. Debonding tests and scanning electron microscope tests of ramie fiber/polypropylene micro-composites conditioned in environments with different water content were done to verify the model. The results showed that in the environment with 65% relative humidity (RH), the water-induced interfacial shear stress was predicted to be 1.51â¯MPa, much lower than the interfacial shear strength (IFSS) of dry micro-composites (19.67â¯MPa) and the interface was not damaged. In liquid water, a water-induced interfacial shear stress of 20.02â¯MPa was predicted, larger than 19.67â¯MPa and the interfacial adhesion was damaged solely by water absorption. At 90% RH, however, the predicted water-induced interfacial shear stress was only 5.32â¯MPa but premature debonding already occurred, which could be due to the matrix creep creating radial debonding.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composite Structures - Volume 203, 1 November 2018, Pages 259-266
Journal: Composite Structures - Volume 203, 1 November 2018, Pages 259-266
نویسندگان
Jianxia Yang, Yitong Guo, Lan Yao, Yiping Qiu,