| INORGANIC MATERIALS AND CERAMIC MATRIX COMPOSITES |
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| Dynamic Responses of Cellular Materials with Nonlinear Graded Cell Distribution Subjected to Impact Loading |
| HU Jun1, REN Jianwei1,2, WANG Aiguo3, WU Deyi1
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1 Key Laboratory of Building Structure and Underground Engineering of Anhui, Anhui Jianzhu University, Hefei 230601
2 Multifunctional Lightweight Materials and Structure Research Center (MLMS), Nanjing University of Aeronautics and Astronautics, Nanjing 210016
3 Key Laboratory of Advanced Building Materials of Anhui Province, Anhui Jianzhu University, Hefei 230601 |
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Abstract According to the cellular distribution rule of honeycomb materials in nature, four honeycomb models were established to investigate the inf-luence of gradient cell distribution on the dynamic performance of honeycomb materials. The finite element analysis was employed to analyze the characteristics of deformation mode, bearing capability, strain-rate sensitivity and diffusion property of impact stress of diverse honeycomb materials under various impact loadings. The major results in this study can be concluded as follow. The initial crushing region of nonlinear graded honeycomb materials presented a dispersed distribution, other than a continuous distribution. The nonlinear graded honeycomb materials possessed a more homogenous densification process than conventional honeycomb materials. Besides, the nonlinear graded distribution of cells, endowed the honeycomb materials with the effect of framework effect, which resulted in improvement of densification strain and plateau stress by 10%—30%. Furthermore, the graded distribution of the frame also brought about 50% reduction of strain-rate sensitivity of the bulk honeycomb materials, showing a notable enhanced stability of the dynamic performances.
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Published: 28 October 2019
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| Fund:This work was financially supported by the National Natural Science Foundation of China (51778003), the Key Program of Anhui Provincial Educational Department College Natural Science Foundation (KJ2017A486). |
| About author:: Jun Hu received his Ph.D. degree in engineering from University of Science and Technology of China in 2012. He has been an associate professor and master’s tutor in Anhui Jianzhu University. In recent 5 years, he has hosted or participated in many national and provincial research projects, and has published dozens of papers indexed by EI/SCI. His major interests are structure earthquake resistance of high and huge-span building, dynamic performances of solid materials;Aiguo Wang received his Ph.D. degree in materials from Nanjing Tech University in 2010. He performed his visiting researches in University of Southern Queensland, Centre for Future Materials of Australia in 2017. He has been an associate professor and master’s tutor from 2002 in Anhui Jianzhu University. He also assumes reviewer of journals like Construction and Building Materials, Cement and Concrete Composites, Cement and Concrete Composites and so on. He is the member of Professional Committee of Chemically Induced Cementitious Materials of China Architecture Society Building Materials Branch. His major interests are high performances cementitious composite materials, building functional materials & comprehensive utilization of solid waste. |
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Qiao P, Yang M, Bobaru F. Journal of Aerospace Engineering, 2008, 21(4), 235.2 Zhang Q, Yang X, Li P, et al. Progress in Materials Science,2015,74,332.3 Chung J, Waas A M. International Journal of Impact Engineering, 2007,27,729.4 Zhao X, Gao Q, Wang L, et al. Materials and Design,2018,160,527.5 Wang A J, Mcdowell D L. International Journal of Mechanical Sciences,2003,45(11), 1799.6 Wang P, Wang X, Zheng Z, et al. Latin American Journal of Solid and Structures,2017,14(7), 1251.7 Wu Y, Tang L, Liu Z, et al. Journal of Materials Engineering and Performances,2017,26(8), 3892.8 Sarvestani H Y, Akbarzadeh A H, Mirbolghasemi A, et al. Materials and Design, 2018,160,179.9 Small G D, Ansell M P. Journal of Materials Science,1987,22,2717.10 Novak N, Hokamoto K, Vesenjak M, et al. International Journal of Impact Engineering, 2018,122,83.11 Zhang J, Zhao G P, Lu T J. Engineering Mechanics, 2016, 33(8),211(in Chinese).张健, 赵桂平, 卢天健. 工程力学,2016,33(8), 211.12 Cai Z Y, Ding Y Y, Wang S L, et al. Explosion and Shock Waves, 2017, 37 (3),396(in Chinese).蔡正宇, 丁圆圆, 王士龙, 等. 爆炸与冲击,2017,37(3),396.13 He Q, Ma D W, Zhang Z D, et al. Engineering Structure,2016,33(2),172(in Chinese).何强, 马大为, 张震东, 等. 工程力学,2016,33(2), 172.14 Gibson L J, Ashby M F. Cellular solids: Structure and properties, 2nd ed. Cambridge University Press, UK, 1997.15 Islam M A, Brown A D, Hazell P J, et al. International Journal of Impact Engineering, 2018,114,111.16 Khan M K, Baig T, Mirza S. Materials Science and Engineering A, 2012,539,135.17 Paul A, Ramamurty U. Materials Science and Engineering A,2000,281,1.
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2019, Vol. 33 
