کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1473795 991061 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
On the nonlinear mechanical behavior of macroporous cellular ceramics under bending
ترجمه فارسی عنوان
در رفتار مکانیکی غیرخطی سرامیک سلولی بزرگ پوستان تحت خم شدن
کلمات کلیدی
سرامیک سلولی، رفتار مکانیکی غیرخطی کاربید سیلیکون، انتشار آکوستیک، نظارت بر مقاومت الکتریکی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
چکیده انگلیسی

This work presents the results of an experimental work on the mechanical behavior under bending of Si–SiC reticulated foams. Particularly it is here studied a transient regime after their linear elastic behavior and before their catastrophic failure. During this regime part of the mechanical work is dissipated by local struts failure. This behavior is interesting because, if well understood, could give important information on the prediction of reticulated ceramics’ life time. Besides load cell and deflection readings, acoustical emission and electrical resistance were also recorded during the tests. Data were further processed using Weibull statistics.Resultsevidence that the duration and effects of this regime strongly depend on ligaments’ microstructure and thus on the manufacturing technique. A correlation with the average acoustical events per sample and the Weibull modulus is also evidenced.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the European Ceramic Society - Volume 34, Issue 10, September 2014, Pages 2133–2141
نویسندگان
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