کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7971712 | 1514612 | 2018 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Aluminum foam sandwich with density-graded open-cell core: Compressive and flexural response
ترجمه فارسی عنوان
ساندویچ فوم آلومینیوم با هسته باز سلولی تراکم: پاسخ فشاری و خمشی
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کلمات کلیدی
آلومینیوم ساندویچ فوم هسته فوم باز سلولی، تراکم ارزیابی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
We created a density-graded, open-cell, aluminum foam core sandwich (AFS) by joining, alternately arranged Al sheets and three different relative density (Ï*â¯=â¯7%, 29%, and, 42%) foams using a zinc filler. A defect free, lamellar, αâ¯+â¯Î· microstructure was observed in the foam/facesheet joint interface. Vickers microhardness and nanoindentation of the joint revealed higher hardness in the Zn filler compared to foam struts and sheets. The density-graded AFS showed a staggered compressive stress-strain response and its energy absorption increased by up to 607% compared to as-received (7% Ï*) foam core AFS. Three-point bend testing of the density-graded AFS showed indentation, foam strut bending, core shear and interface debonding as major failure mechanisms. Our results show that density-grading of foam core by introducing different relative density foam layers is a viable method to tailor the mechanical response of AFS.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 731, 25 July 2018, Pages 220-230
Journal: Materials Science and Engineering: A - Volume 731, 25 July 2018, Pages 220-230
نویسندگان
Vasanth Chakravarthy Shunmugasamy, Bilal Mansoor,