کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5205756 | 1502939 | 2016 | 24 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of strain rate on the compressive yield stress of CMDB propellant at low, intermediate and high strain rates
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Influence of strain rate on the compressive yield stress of CMDB propellant at low, intermediate and high strain rates Influence of strain rate on the compressive yield stress of CMDB propellant at low, intermediate and high strain rates](/preview/png/5205756.png)
چکیده انگلیسی
The mechanical properties of composite modified double base (CMDB) propellant significantly depend on the strain rate. In particular, the yield stress increases dramatically at higher strain rates. To study this behaviour, low, intermediate and high strain rate compression testing (1.7Â ÃÂ 10â4 to 4Â ÃÂ 103Â sâ1) of CMDB propellant at room temperature was conducted by using a universal testing machine, a hydraulic testing machine and a split Hopkinson pressure bar (SHPB) system, respectively. The yield stress was observed to increase bilinearly with the logarithm of strain rate, with a sharp increase in slope at a strain rate of 5Â ÃÂ 101Â sâ1, which was supported by dynamic mechanical analysis (DMA) testing. The Ree-Eyring model, involving two rate-activated processes, was employed to predict the yield behaviour of CMDB propellant over a wide range of strain rates. The predictions are in excellent agreement with the experimental data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Polymer Testing - Volume 51, May 2016, Pages 49-57
Journal: Polymer Testing - Volume 51, May 2016, Pages 49-57
نویسندگان
Long Yang, Ningfei Wang, Kan Xie, Xin Sui, Shipeng Li,