This paper described the elevated temperature dynamic tensile testing system developed for measuring carbon/carbon composites. A current heating device was applied to heat the sample to achieve the elevated temperature environment required for the test in rotating flywheel-impact split Hopkinson tensile bar(SHTB), and a water-cooling device was also applied to control temperature. All units above were integrated to form an elevated temperature dynamic tensile testing system for carbon/carbon composites. The numerical simulation of samples with different sizes was conducted to analysis the influence on temperature uniformity in sample, which helped to determine sample dimension. Based on the developed system, the dynamic tensile stress-strain curves of carbon/carbon composites at room temperature to 1300℃ were obtained. The test results showed that failure stress and strain of tested material decreased as temperature increase. The established elevated temperature dynamic tensile test system could be used for testing the dynamic tensile mechanical properties of carbon/carbon composites at elevated temperature.
uxi, GONG Qin, XU Weifang, CHEN Junhong, ZHANG Fangju, ZHANG Kai.
A study on technique for testing dynamic tensile properties of carbon/carbon composites at elevated temperatures[J]. Journal of Vibration and Shock, 2024, 43(16): 247-255
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参考文献
[1] 杜善义.高温固体力学[M].北京:科学出版社,2022.
DU Shan-yi. High Temperature Solod Mechanics[M]. Beijing: Science Press, 2022.
[2] 解惠贞,孙建涛,何轩宇,等.密度对C/C复合材料热力学性能的影响[J].材料导报,2018,32(2):268.
XIE Hui-zhen, SUN Jian-tao, HE Xuan-yu, et al. Influence of density on mechanical and thermal performance of C/C composite[J]. Materials Reports, 2018, 32(2), 268.
[3] LI Dian-sen, DUAN Hong-wei, WANG Wei, et al. Strain rate and temperature effect on mechanical properties and failure of 3D needle-punched Carbon/Carbon composites under dynamic loading[J]. Composite structures, 2017, 172(Jul.), 229.
[4] 魏博鑫,崔红,张晓虎.针刺C/C复合材料拉伸性能和韧性的研究进展[J].炭素,2013(2),19.
WEI Bo-xin, CUI Hong, ZHANG Xiao-hu. Research progress on tensile properties and toughness of needle-punched C/C composites[J]. Carbon, 2013(2), 19.
[5] 陈波,温卫东,孙煦泽,等.三维编织碳/碳复合材料高温力学及疲劳试验研究[J].南京工业大学学报(自然科学版),2018,40(1),8.
CHEN Bo, WEN Wei-dong, SUN Xu-ze, et al. Experimental investigation on fatigue of 3D braided C/C composites at high temperatures[J]. Journal of Nanjing Tech University(Natural Science Edition), 2018, 40(1), 8.
[6] 翟军军,王露晨,孔祥霞.三维多向编织复合材料温度效应综述:热传导、热膨胀性质和力学响应[J].复合材料学报,2021,38(08),2459.
ZHAI Jun-jun, WANG Lu-chen, KONG Xiang-xia. A Review on Temperature effect of 3D multi-directional braided composites: Heat conduction, thermal expansion properties and mechanical response[J]. Acta Materiae Compositae Sinica, 2021, 38(08), 2459.
[7] 王玲玲,师鼎,张小会,等.不同增强结构炭/炭复合材料力学及抗烧蚀性能[J].炭素技术,2017,36(4),16.
WANG Ling-ling, SHI Ding, ZHANG Xiao-hui, et al. Mechanical and ablative properties of different reinforced structure C/C composites. Carbon Techniques, 2017, 36(4), 16.
[8] 孟凡越. 高温双轴拉伸测试装备设计与试验研究[D]. 吉林:吉林大学,2021.
MENG Fan-yue. Design and experimental research of high temperature biaxial tensile testing equipment[D]. Jilin University,2021.
[9] 李玉龙,索涛,郭伟国,等. 确定材料在高温高应变率下动态性能的 Hopkinson杆系统[J]. 爆炸与冲击,2005,25(6):487-492.
LI Yu-long, SUO Tao, GUO Wei-guo, et al. Determination of dynamic behavior of materials at elevated temperatures and high strain rates using Hopkinson bar[J]. Explosion and Shock Waves, 2005, 25(6):487-492.
[10] 董士博.碳/碳化硅复合材料的高温力学性能研究[D].黑龙江:哈尔滨工业大学,2021.
DONG Shi-bo. Study on high temperature mechanical properties of C/SiC composites[D]. Harbin Institute of Technology,2021.
[11] 张方举,谢若泽,胡文军等.一种改进的金属材料的高温动态拉伸实验技术[J].实验力学,2011,26(06):750-754.
ZHANG Fang-ju, XIE Ruo-ze, HU Wen-jun, et al. An improved high temperature dynamical tensile experimental technique for metal materials[J]. Journal of Experimental Mechanics, 2011,26(06):750-754.
[12] 李明旭. 针刺碳/碳复合材料超高温拉伸力学性能试验研究[D]. 黑龙江:哈尔滨工业大学,2020.
LI Ming-xu. Experimental study on ultra-high temperature tensile mechanical properties of needle-punched C/C composites[D]. Harbin Institute of Technology, 2020.
[13] 黄海明, 焦雯, 黄国. C/C 复合材料板烧蚀中热传导的非线性分析[J]. 复合材料学报, 2012, 29(1): 49-53.
HUANG Hai-ming, JIAO Wen, HUANG Guo. Nonlinear analysis for thermal conduction in carbon/carbon composites with ablation[J]. Acta Materiae Compositae Sinica, 2012, 29(1): 49-53.