胞元支架及填充料对多孔材料性能的影响研究

发布时间：2018-01-05 12:13

本文关键词：胞元支架及填充料对多孔材料性能的影响研究　出处：《江西农业大学》2015年硕士论文　论文类型：学位论文

【摘要】：胞元支架结构复合材料作为多孔材料的一种特殊延伸,由于它不仅含有多孔材料的优点,在填充料方面还具有很大的可设计性,可以满足诸多要求,因此有望在航空航天、汽车制造、船舶制造、建筑以及环保等领域被广泛应用。虽然目前多孔材料的研究日益趋于完善,但对于胞元支架结构复合材料的研究还是比较少。为了在多孔材料方面做出更多的探索,对胞元支架结构复合材料的胞元形态、填充料等方面的研究是必要的。本文主要以有限元分析软件ANSYS WORKBENCH为工具,做了如下研究工作:1.研究了胞元数目对胞元支架结构复合材料的性能的影响,试验表明,胞元数目越多,其材料强度越强;2.研究了胞元形态对胞元支架结构复合材料性能的改变,分别以正三角形胞元、正四边形胞元、正六边形胞元和圆柱形胞元为研究对象,仿真以它们为胞元的胞元支架结构复合材料的面内冲击,研究发现,胞元形态对胞元支结构复合材料的力学性能有很大改变;3.研究了填充料对胞元支架结构复合材料热学性能的影响,分别对以SiC和聚酰胺为填充料的两种胞元支架结构复合材料进行了稳态和热-结构耦合分析,为胞元支架结构复合材料的热学性能研究提供了参考。胞元支架结构复合材料在抗冲击和多功能材料领域具有很好的应用前景,本文的研究为胞元支架结构多功能复合材料的设计提供了一定的理论指导和技术支撑。
[Abstract]:The cell scaffold composite structure as a special extension of porous materials, because it not only contains the advantages of porous materials, the filling material has great design, can satisfy many requirements, it is expected in the aerospace, automobile manufacturing, shipbuilding, construction, environmental protection and other fields are widely used. Although study of porous materials are becoming more perfect, but for the study of cell scaffold composite structure is still relatively small. In order to make more exploration in porous materials, cell morphology of cell scaffold composite structures, research and other aspects of the material filling is necessary. In this paper, the finite element analysis software ANSYS WORKBENCH the tool, the research work as follows: 1. the influence of the number of properties of cellular, cellular structure of the composite test indicated that the cell number, the strength of the material 2. strong; the changes of cell morphology on properties of cellular scaffold composites, respectively by triangle cell, quadrilateral cell, hexagonal cell and cylindrical cell as the research object, cell scaffold composite simulation using them as cell surface impact, research found that the mechanical properties of cellular morphology on cell structure of composite materials has greatly changed; 3. the study of the effect of filler on the thermal properties of cellular scaffold composites, respectively for SiC and two kinds of polyamide cell support structure composite filling material were analyzed in the steady state and thermal - structure coupling which provides a reference for the study on thermal properties of cellular scaffold composites. Cell scaffold composite material has good application prospect in the field of anti shock and multi functional materials, this study is a multifunctional cell scaffold composite material The design provides a certain theoretical guidance and technical support.

【学位授予单位】：江西农业大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TB303

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