کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5013971 1463056 2017 20 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Damage evolution and life prediction of different 2D woven ceramic-matrix composites at room and elevated temperatures based on hysteresis loops
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
Damage evolution and life prediction of different 2D woven ceramic-matrix composites at room and elevated temperatures based on hysteresis loops
چکیده انگلیسی
In this paper, the damage evolution and life prediction of different 2D woven fiber-reinforced ceramic-matrix composites (CMCs), i.e., C/SiC, SiC/SiC, SiC/Si-N-C, Nextel 610™/Aluminosilicate, and Nextel 720™/Aluminosilicate, at room and elevated temperatures have been investigated. The evolution of fatigue hysteresis dissipated energy and interface shear stress versus cycle number curves have been analyzed. The fatigue life S-N curves and broken fibers fraction versus cycle number have been predicted. For non-oxide CMCs, i.e., C/SiC, SiC/SiC or SiC/Si-N-C, the fatigue limit stress greatly reduces at elevated temperature in air, i.e., 21% tensile strength of C/SiC at 550 °C in air, 25% tensile strength of SiC/SiC at 800 °C in air, and 25% tensile strength of SiC/Si-N-C at 1000 °C in air; however, for oxide-oxide CMCs, the fatigue limit stress is much higher than that of non-oxide CMCs, i.e., 60% tensile strength of Nextel 610™/Aluminosilicate and Nextel 720™/Aluminosilicate at 1000 °C and 1200 °C in air.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Engineering Fracture Mechanics - Volume 173, 15 March 2017, Pages 1-20
نویسندگان
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