کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10625719 | 989634 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effects of strain rate and temperature on compressive strength and fragment size of ZrB2-SiC-graphite composites
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The quasi-static (strain rate of 10â4Â sâ1) and dynamic compression experiments (strain rate of 200-1500Â sâ1) of ZrB2-SiC-graphite composites are conducted at 293Â K and 1073Â K. The initial compressive strength and Weibull modulus are calculated to handle the discrete quasi-static experimental data. Considering effects of strain rate and temperature, the compressions of ZrB2-SiC-graphite composites are investigated. The results show that both compressive strength and fragment size are higher at 1073Â K than those at room temperature. The compressive strengths increase with increasing strain rate at room temperature and 1073Â K, whereas fragment sizes decrease. Moreover, a micromechanical model is utilized to characterize the effect of strain rate on the compressive strength. The predictions of this micromechanical model are good agreement with the experimental results. Meanwhile, the fragment sizes of dynamic compressive specimens are analyzed through analytical approaches.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 40, Issue 4, May 2014, Pages 5255-5261
Journal: Ceramics International - Volume 40, Issue 4, May 2014, Pages 5255-5261
نویسندگان
Ling-Ling Wang, Jun Liang, Guo-Dong Fang, Xiao-Yang Wan, Jun-Bo Xie,