کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7211785 | 1469333 | 2018 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Dynamic compressive response of a developed polymer composite at different strain rates
ترجمه فارسی عنوان
پاسخ فشاری پویای یک کامپوزیت پلیمر توسعه یافته در نرخ تنش های مختلف
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کلمات کلیدی
کامپوزیت پلیمر، نرخ فشار، پاسخ فشاری دینامیک، تغییر شکل و شکستگی سختی،
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی (عمومی)
چکیده انگلیسی
Compressive mechanical response of a developed polymer composite material over a wide strain rate range of 0.0001/s-8000/s is investigated. The developed polymer composite material shows the following stress-strain relation under high rate compressive loading: linear elasticity to a high yield stress, softening behavior with a slight stress decrease, plateau stress accompanied by a large plasticity and densification with a stress increase. Rate dependency of mechanical properties is revealed quantificationally, which follows a power law function. By designing the impact energy (or initial loading rate) in experimental tests conducted by split Hopkinson pressure bar (SHPB), the deformation-to-fracture process related with the inputted strain energy density or with deformation strain during a dynamic loading is observed through the post-test analyses. The ductile damage and brittle fracture characteristics as well as the tolerant cracking mechanisms are illustrated. This work is full of interest to develop a light-weight transparent protective polymer composite material against a high-speed impact loading.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Composites Part B: Engineering - Volume 152, 1 November 2018, Pages 96-101
Journal: Composites Part B: Engineering - Volume 152, 1 November 2018, Pages 96-101
نویسندگان
Jitang Fan, Cheng Wang,