| 林谋金,刘荣凤,王晓春*.孔网钢增强复合材料管的弹性模量研究[J].实验力学,2011,26(1):26~31 |
| 孔网钢增强复合材料管的弹性模量研究 |
| Study of Elastic Modulus of Composite Pipe Reinforced by Perforated Sheet Steel |
| 投稿时间：2010-04-26 修订日期：2010-06-20 |
| DOI： |
| 中文关键词: 孔网钢带 聚乙烯 复合材料 等效弹性模量 开孔因子 |
| 英文关键词:perforated sheet steel polyethylene composite equivalent elastic modulus factor of perforations |
| 基金项目: |
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| 中文摘要: |
| 以孔网钢聚乙烯复合管为例,利用单轴压缩实验研究了孔网钢增强复合材料管的力学性能,包括复合管的抗压强度和弹性性质,提出了孔网钢等效弹性模量和开孔因子的概念(分别记为Es和η),根据实验结果和复合材料理论,得到孔网钢等效弹性模量Es和开孔因子η的实验值。运用单孔模型,推导得到了孔网钢等效弹性模量Es和开孔因子η的解析计算公式,由此可计算得到孔网钢增强类复合材料弹性模量的理论值。最后,通过ANSYS有限元分析得到Es和η的数值计算值。研究表明：Es和η 的理论计算值与其实验结果、有限元数值计算结果比较,三者吻合较好,可推广用于工程实际。 |
| 英文摘要: |
| The mechanical properties, including compressive strength and modulus of elasticity, of perforated sheet steel plastics (for instance, polyethylene) pipe (in short words PSS-PL pipe) were studied by uniaxial compression experiment. Concepts of equivalent elastic modulus of perforated sheet steel (or PSS) and factor of perforations, represented with Es and η respectively, were introduced. Experimental values of equivalent elastic modulus Es of PSS and factor of perforations η were obtained based on the theory of mechanics of composite materials and data of uniaxial compression test. Analytical expressions of Es and η which could be extended to calculate the Yong’s module of PSS-PL pipe, were derived out by means of single hole model. Finally, numerical results of Es and η were also obtained by finite element software ANSYS. Comparison among theoretical, experimental and finite element numerical results of Es and η shows that they coincide well and the formulae of Es and η could be used in engineering. |
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