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材料工程  2019, Vol. 47 Issue (7): 35-49    DOI: 10.11868/j.issn.1001-4381.2018.001411
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多孔材料性能模型研究2:实验验证
刘培生, 夏凤金, 程伟
北京师范大学 核科学与技术学院射线束技术教育部 重点实验室, 北京 100875
Study on property model for porous materials 2: experimental verification
LIU Pei-sheng, XIA Feng-jin, CHENG Wei
Key Laboratory of Beam Technology of Ministry of Education, College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China
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摘要 在三维网状多孔材料"八面体结构模型"及其系列基本物理、力学性能相关数理模型和表征方式基础上,本文对传导和拉伸等若干性能指标的数理关系验证进行了综述。重点讨论了数理关系的实践性、修正系数的合理性、对计算结果的影响、对应致密体的许用应力取值和塑性指数取值等问题。按照这种数理关系,通过多孔产品孔率等基本参量即可计算其电阻率等性能指标,实验结果证明了其可行性。本方法可以优越于有限元等复杂计算。
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刘培生
夏凤金
程伟
关键词 多孔材料性能模型实验验证    
Abstract:The "octahedral structure model" is introduced for three-dimensional reticulated porous materials, as well as the mathematical relations of their basic physical and mechanical properties. On this basis, the verification works about some performance relations, including the conductivity and tension, etc, are reviewed in this paper. A number of issues were discussed with the emphases on the practicality of these mathematical and physical relations, the rationality of the correction coefficients, the significant influence on the calculation results, and the allowable stress and the plastic index value of the corresponding dense body were also analyzed in details. According to this mathematical and physical relationship, the performance indexes such as the electrical resistivity of porous products can be calculated by the easily measurable basic parameters like the porosity. The experimental results prove this way feasible. Therefore, this method can be superior to the finite element and other complex computational methods.
Key wordsporous material    property model    experimental verification
收稿日期: 2018-12-04      出版日期: 2019-07-19
中图分类号:  TB383  
通讯作者: 程伟(1973-),男,副研究员,博士,现从事材料计算等方面的研究工作,联系地址:北京师范大学核科学与技术学院(100875),liu996@263.net;chengwei@bnu.edu.cn     E-mail: liu996@263.net,chengwei@bnu.edu.cn
引用本文:   
刘培生, 夏凤金, 程伟. 多孔材料性能模型研究2:实验验证[J]. 材料工程, 2019, 47(7): 35-49.
LIU Pei-sheng, XIA Feng-jin, CHENG Wei. Study on property model for porous materials 2: experimental verification. Journal of Materials Engineering, 2019, 47(7): 35-49.
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http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2018.001411      或      http://jme.biam.ac.cn/CN/Y2019/V47/I7/35
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