کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1575606 1514751 2014 10 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Compressive behavior of aluminum/copper hybrid foams under high strain rate loading
ترجمه فارسی عنوان
رفتار فشاری فومهای هیبریدی آلومینیوم / مس تحت بارگذاری بارهای شدید
کلمات کلیدی
فوم های باز سلولی هیبرید، الکترود مواد نانوکریستال، نرخ فشار بالا، جذب انرژی، روش های عنصر محدود
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
چکیده انگلیسی
The accessible interconnected structure of open-cell metal foams offers the opportunity to create hybrid foam materials through electrodeposited metal coatings, which has great potential for the fabrication of functionally-graded foam systems. Nanocopper coated aluminum (Al) foam was created by reinforcing conventional open-cell Al foams with electrodeposited nanocrystalline copper (Cu). The mechanical properties of such Al/Cu hybrid foam under high strain-rate compression were investigated using a split Hopkinson pressure bar and numerical methods were used to gain a further understanding on the micro-scale failure mechanisms. It was found that the stable compressive response of open-cell Al foam can be effectively enhanced by electrodeposited nanocopper coatings. However, such enhancement is limited by the relatively high brittleness of the Al/Cu hybrid foam due to the low ductility level of the electrodeposited nano-coating material. Nonetheless, this study also shows that the overall energy absorption performance of Al/Cu hybrid foams under high strain rate loading can be significantly improved by increasing the ductility level of the electrodeposited copper coating.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 592, 13 January 2014, Pages 111-120
نویسندگان
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