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混凝土材料的动态力学性能研究

Keywords: 混凝土,力学性能,动态载荷,有限元

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Abstract:

为研究混凝土材料的动态力学性能,通过自行编制的粗集料颗粒在混凝土材料中随机分布的二维生成程序,将混凝土作为水泥砂浆和粗集料组成的两相复合材料建立二维有限元模型,对混凝土复合材料在静动态压缩载荷作用下的力学性能和破坏形态进行了模拟.在与实验结果比较的基础上,验证了有限元模型的有效性,进而分析了粗集料粒径级配和粗集料体积分数对混凝土材料动态力学性能和破坏形态的影响,为混凝土材料的优化和设计提供依据.

References

[1]  Abrams D A. Effect of rate of application of load on the compressive strength of concrete (part Ⅱ)[J]. Astmj, 1917,17:364-377.
[2]  Watstein D. Effect of straining rate on the compressive strength and elastic properties of concrete[J]. ACI Materials Journal,1953,49(8):729-744.
[3]  Grote D L, Park S W, Zhou M. Dynamic behavior of concrete at high strain rates and pressures: I. experimental characterization[J].International Journal of Impact Engineering,2001,25(3):869-886.
[4]  商霖,宁建国.强冲击载荷下混凝土动态本构关系[J].工程力学,2005,2(2):116-119. Shang Lin, Ning Jianguo. Dynamic constitutive relationship of concrete subjected to shock loading[J].Engineering Mechanics, 2005,2(2):116-119. (in Chinese)
[5]  Dube J F. Rate dependent damage model for concrete in dynamics[J].Journal of Engineering Mechanics,1996,122:939-947.
[6]  宁建国,商霖,孙远翔.混凝土材料冲击特性的研究[J].力学学报,2006,38(2):199-208. Ning Jianguo, Shang Lin, Sun Yuanxiang. Investigation on impact behavior of concrete[J]. Chinese Journal of Theoretical and Applied Mechanics, 2006,38(2):199-208. (in Chinese)
[7]  刘海峰,宁建国.强冲击载荷作用下混凝土材料动态本构模型[J].固体力学学报,2008,29(3):231-238. Liu Haifeng, Ning Jianguo. Constitutive model of concrete subjected to intense impact loading[J]. Chinese Journal of Solid Mechanics, 2008,29(3):231-238. (in Chinese)
[8]  宋卫东,宁建国,毛小南.TiC颗粒增强钛基复合材料细观动态力学性能[J].稀有金属材料与工程,2011,40(9):1555-1560. (in Chinese) Song Weidong, Ning Jianguo, Mao Xiaonan. Meso-mechanical behavior of TiC particle-reinforced titanium matrix composites under dynamic loadings[J]. Rare Metal Materials and Engineering, 2011,40(9):1555-1560. (in Chinese)
[9]  商霖.混凝土材料动态本构特性及其加筋力学行为的研究.北京:北京理工大学宇航科学技术学院,2005. Shang Lin. Studying of dynamic constitutive behavior and failure mode of reinforced concrete. Beijing: School of Aerospace Science and Technology, Beijing Institute of Technology, 2005. (in Chinese)

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