کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
1640897 1517203 2016 3 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Evaluation of failure mechanisms of high strength tailor-made metallic foams (TMFs)
ترجمه فارسی عنوان
ارزیابی مکانیزم های شکست فومهای فلزی خرد شده با قدرت بالا (TMFs)
کلمات کلیدی
فومهای فلزی سفارشی ساخته شده؛ آلیاژهای آلومینیوم؛ کامپوزیت های فلزی؛ تغییر شکل و شکستگی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی


• Crushing, shear fracture and Griffith rupture observed as main failure mechanisms.
• H/D ratio is the main governing factor which favor rupture or shear fracture.
• t/D is the parameter which controls crushing of cells or shear fracture of TMFs.

Deformation and failure mechanism of A356 matrix tailor-made metallic foams (TMFs) with variety of sample aspect ratio (H/D), cell wall thickness to the diameter (t/D) and density was studied under quasi-static compressive loading. Four distinct deformation sections were characterized in the stress strain curves; elastic, initiation of plastic, plastic and densification. The plastic deformation of TMFs before crack initiation increases with increase of t/D ratio and density of the TMFS. Likewise, stress drop due to formation of cracks shows a direct relation to the t/D and density. Crushing of spheres, shear fracture and Griffith rupture were observed as main failure mechanisms in A356 matrix TMFs. It was seen that the H/D ratio of the samples is the main governing factor that favors rupture or shear fracture while t/D controls crushing of cells or shear fracture of A356 matrix TMFs.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 185, 15 December 2016, Pages 89–91
نویسندگان
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