کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7973644 | 1514628 | 2018 | 25 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Compressive behavior of a rolled open-cell aluminum foam
ترجمه فارسی عنوان
رفتار فشرده یک فوم آلومینیومی باز سلول
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کلمات کلیدی
فوم باز سلولی، آلومینیوم، جذب انرژی، نرخ فشار، رولینگ،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
In this paper, we investigate compressive behavior of an open-cell 6101 aluminum foam in as-cast and as-rolled conditions. The as-cast foam with a relative density of Ï* = 7% was rolled to create two distinct as-rolled conditions with relative densities of Ï* = 29% and Ï* = 42%, respectively. The quasi-static and high strain rate compressive behavior was studied over a range of strain rates 10â4 /s â¤ ÎµÌ â¤ 5 à 103/s. It was found that the internal structure of as-rolled foams significantly differs from as-cast foams. Rolling causes plastic bending, stretching, and buckling of individual struts and ligaments, resulting in reduced pore size and an increase in relative density. In as-rolled condition, compressive plateau strength increased with increase in Ï*; it was up to 26 times higher as compared to the as-cast condition. In the range of strain rates considered here, strain rate sensitive compressive behavior was not observed; instead, the intrinsic strain rate sensitivity of parent material governed the compressive behavior in all conditions. Our results demonstrate the feasibility of using conventional rolling as a simple way to modify internal structure and relative density of as-cast foams, thereby enabling mechanical properties more attractive for various structural applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 715, 7 February 2018, Pages 281-294
Journal: Materials Science and Engineering: A - Volume 715, 7 February 2018, Pages 281-294
نویسندگان
Vasanth Chakravarthy Shunmugasamy, Bilal Mansoor,