[1]王 涛,张建华,郝世美,等.基于分形级配的树脂矿物复合材料 骨料尺寸效应研究[J].南京理工大学学报(自然科学版),2013,37(04):597.
 Wang Tao,Zhang Jianhua,Hao Shimei,et al.Size effect of aggregate in resin mineral composite based on fractal gradation[J].Journal of Nanjing University of Science and Technology,2013,37(04):597.
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基于分形级配的树脂矿物复合材料 骨料尺寸效应研究
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《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

卷:
37卷
期数:
2013年04期
页码:
597
栏目:
出版日期:
2013-08-31

文章信息/Info

Title:
Size effect of aggregate in resin mineral composite based on fractal gradation
作者:
王 涛12张建华12郝世美12任秀华12何旭峰3
山东大学 1.高效洁净机械制造教育部重点实验室; 2.机械工程学院,山东 济南 250061; 3.南京理工大学 工程技术研究院,江苏 南京 210094
Author(s):
Wang Tao12Zhang Jianhua12Hao Shimei12Ren Xiuhua12He Xufeng3
1.Key Laboratory of High Efficiency and Clean Mechanical Manufacture,Ministry of Education; 2.School of Mechanical Engineering,Shandong University,Jinan 250061,China; 3.Engineering and Technology Research Institute,NUST,Nanjing 210094,China
关键词:
树脂矿物复合材料 骨料级配 尺寸效应 分形理论
Keywords:
resin mineral composite aggregate gradation size effect fractal theory
分类号:
TH145.9; TB332
文献标志码:
A
摘要:
作为树脂矿物复合材料的主要受力单元,骨料的级配设计与不同粒径骨料所对应的尺寸效应影响复合材料的整体力学性能。基于粒子干涉理论提出了一种最优级配控制筛孔的确定方法,根据分形理论进行相应的配比调整,形成有效的骨料尺寸效应评价参数。建立了简化的骨料微观应力传递模型,并仿真分析了骨架强度的变化趋势,基于树脂矿物复合材料典型试样的抗压强度测试验证了上述理论的合理性。骨料级配实验结果与仿真分析结果基本吻合,合理地增大骨料粒径在提高材料物理机械性能的同时可有效降低树脂用量。
Abstract:
Aggregate is the key component in resin mineral composite(RMC)to bear loads and its gradation design and size effect corresponding to different aggregate dimension determines the mechanical properties of RMC.An optimal method to determine the critical dimension of screen holes is proposed based on the particle interference theory.A fractal method is adopted to adjust the corresponding proportion of each component in order to form an effective evaluation parameter of aggregate size effect.A simplified micro-stress transfer model of aggregate is established.The variation tendency of frame strength is acquired by simulation.The compressive strength of the representative RMC samples is measured to validate the aforementioned assumptions.Experimental results of aggregate gradation are consistent with the simulation results.Increasing aggregate dimension reasonably can not only improve the mechanical properties of the RMC,but also decrease the usage amount of resin effectively.

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备注/Memo

备注/Memo:
收稿日期:2012-06-21 修回日期:2013-04-19
基金项目:国家科技重大专项(2012ZX04010032); 国家自然科学基金(51175308)
作者简介:王涛(1986-),男,博士生,主要研究方向:树脂矿物复合材料的制备与应用,E-mail:15153187189@163.com; 通讯作者:张建华(1964-),男,教授,博士生导师,主要研究方向:数控技术与装备等,E-mail:jhzhang@sdu.edu.cn。
更新日期/Last Update: 2013-08-31