| Experimental and Numerical Investigation on Strain Rate-Dependent Tensile Behavior of ZrB2–SiC Ceramic Composite |
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| 作者姓名： | Wei Huang Mi Wang Zhou Hu Lingling Wang Junxin Cao Dewen Kong |
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| 作者单位： | School of Civil Engineering |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China(Grant Nos.11602061 and 51968009);Science and Technology Planning Project of Guizhou Province(Grant Nos.[2017]1033 and[2020]1Y244);Civil Engineering First-Class Discipline Construction Project of Guizhou Province(Grant No.QYNYL[2017]0013). |
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| 摘 要： | In this study,the strain rate-dependent dynamic tensile behavior of ZrB2-20%SiC ceramic composite was investigated using experimental and numerical approaches.The split Hopkinson pressure bar apparatus was used to measure the dynamic splitting tensile response at strain rates of 17-67 s?1.The experiment results demonstrate a significant strain rate dependence of the dynamic tensile behavior of the ZrB2-SiC ceramic composite.The dynamic tensile strength increased linearly with the strain rate,from 288 MPa at 17 s?1to 654 MPa at 67 s?1.Moreover,a strain rate-dependent tensile strength was introduced into a modified JH-2 model to describe the dynamic tensile behavior and fracture process of ZrB2-SiC ceramics.The numerical results of dynamic tensile strength agree well with the experimental result.Moreover,the fracture process of ZrB2-SiC ceramics under dynamic tension was further studied by combining high-speed images and numerical results.The effect of strain rate on the fracture process and failure patterns of the ZrB2-SiC ceramic composite could be verified by the modified JH-2 model.
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| 关 键 词： | mic tensile strength Strain rate Failure pattern Numerical simulation |
Experimental and Numerical Investigation on Strain Rate-Dependent Tensile Behavior of ZrB2-SiC Ceramic Composite |
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| Wei Huang,Mi Wang,Zhou Hu,Lingling Wang,Junxin Cao,Dewen Kong.Experimental and Numerical Investigation on Strain Rate-Dependent Tensile Behavior of ZrB2-SiC Ceramic Composite[J].Acta Mechanica Solida Sinica,2021,34(1):137-148. |
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| Authors: | Wei Huang Mi Wang Zhou Hu Lingling Wang Junxin Cao Dewen Kong |
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| Institution: | School of Civil Engineering,Guizhou University,Guiyang 550025,China |
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| Abstract: | In this study,the strain rate-dependent dynamic tensile behavior of ZrB2-20％SiC ceramic composite was investigated using experimental and numerical approaches.T... |
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