2.5维机织复杂结构件的静强度

刘浩龙; 崔海涛; 温卫东

doi:10.13224/j.cnki.jasp.2015.03.016

2.5维机织复杂结构件的静强度

doi: 10.13224/j.cnki.jasp.2015.03.016

南京航空航天大学能源与动力学院江苏省航空动力系统重点实验室, 南京 210016

基金项目:

中央高校基本科研业务费专项资金(56XZA13085)

详细信息

作者简介:
刘浩龙(1988-),男,山东滨州人,硕士生,主要从事先进复合材料力学性能研究.

中图分类号: V258
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- 文章访问数: 1140
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- 被引次数: 0
出版历程
- 收稿日期: 2013-10-23
- 刊出日期: 2015-03-28

Static strength of 2.5 dimensional woven complex structures

Jiangsu Province Key Laboratory of Aerospace Power system, College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China

摘要

摘要: 采用宏细观结合方法,针对经纱和纬纱等材料组分可能发生的多种失效模式,分别建立了基于改进的Hashin准则的系统性的材料失效准则及不同失效模式下的刚度退化模型.引入逐渐损伤的思想,建立了2.5维机织复杂结构件静强度系统性分析方法.模拟并分析了材料经向拉伸和纬向拉伸的应力-应变曲线,与实验得到的材料应力-应变曲线相比,相同应变下应力误差不超过6.5%,具有较好的重合度;对2.5维机织压气机静子连接结构模拟件开展了逐渐损伤模拟,结果表明:结构损伤主要集中在叶根倒角附近,其中吸力面叶根处的基体压缩失效形式会引起结构大幅变形,是结构破坏的主要原因.
- 2.5维机织复合材料 /
- 结构静强度 /
- 失效模式 /
- 刚度退化 /
- 逐渐损伤
Abstract: From the perspective of macro and micro combinations, a series of failure criterions and corresponding stiffness reduction methods for multi-failure models of warps and wefts were developed based on modified Hashin criterion. Systematic static strength analytical method for 2.5 dimensional woven complex structures was presented based on gradually damage concept. Also, the tension stress-strain curves along the warp and weft were simulated, and the fitting curves were in good agreement with the experimental results with the errors of calculated stress less than 6.5% for given strains; and for 2.5 dimensional woven connection structure simulation of compressor, gradually damage process was simulated. The result shows that main damage of the structure occurs around the chamfer of the root; specifically, matrix compress failure on the root of suction surface can cause great deformation as a major cause of the destruction of the structure.
- 2.5 dimensional woven composite /
- structural static strength /
- failure model /
- stiffness reduction /
- gradually damage

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参考文献(18)

[1]	孙慧玉.三维编织复合材料力学行为研究进展[J].材料科学与工程学报,2010,28(1):140-144. SUN Huiyu.Mechanics research progress of 3D braided composite[J].Journal of Materials Science and Engineering,2010,28(1):140-144.(in Chinese)
[2]	汪星明,邢誉峰.三维编织复合材料研究进展[J].航空学报,2010,31(5):914-927. WANG Xingming,XING Yufeng.Developments in research on 3D braided composites[J].Acta Aeronautica et Astronautica Sinica,2010,31(5):914-927.(in Chinese)
[3]	左惟炜.三维编织复合材料力学性能与工程应用研究[D].武汉:华中科技大学,2006. ZUO Weiwei.Research on mechanical properties and engineering application of 3-D braided composites[D]. Wuhan:Huazhong University of Science and Technology,2006.(in Chinese)
[4]	Ko F K.Three-dimensional fabrics for composites:an introduction to the magna weave structure[C]//Proceedings of the 4th International Conference on Composite Materials.Tokyo:Japan Composite Materials,1982:1609-1619.
[5]	DU Guangwu,Ko F K.Unit cell geometry of 3D braided structures[J].Journal of Reinforced Plastics and Composites,1993,12(7):752-768.
[6]	Ma C L,Yang J M,Chou T W.Elastic stiffness of three dimensional braided textile structural composites[J].American Society for Testing and Materials Special Technical Publication,1986,893:404-421.
[7]	Yang J M,Ma C L,Chou T W.Fiber inclination model of three-dimensional textile structural composite[J].Journal of Composite Materials,1986,20(5):472-484.
[8]	姜黎黎,曾涛.三维编织复合材料力学性能研究进展[J].哈尔滨理工大学学报,2011,16(1):34-41. JIANG Lili,ZENG Tao.Development of investigations into mechanical properties of 3D braided composites[J].Journals of Harbin University of Science and Technology,2011,16(1):34-41.(in Chinese)
[9]	Kaildindi S R,Abusafieh A.Longitudinal and transverse moduli and strengths of low angle 3D braided composites[J].Journal of Composites Materials,1996,30(8):885-905.
[10]	左惟炜,肖来元,廖道训.Tsai-Wu准则用于三维编织复合材料矩形梁强度计算[J].华中科技大学学报:自然科学版,2006,34(12):74-76. ZUO Weiwei,XIAO Laiyuan,LIAO Daoxun.Calculating the strength of 3D braided composite rectangle beam by using Tsai-Wu criteria[J].Journal of Huazhong University of Science and Technology:Nature Science Edition,2006,34(12):74-76.(in Chinese)
[11]	董伟锋,肖军,李勇, 等.2.5维编织复合材料弹性性能的理论研究[J].南京航空航天大学学报,2005,37(5):659-663. DONG Weifeng,XIAO Jun,LI Yong,et al.Theoretical study of elastic properties of 2.5D braided composites[J].Journal of Nanjing University of Aeronautics and Astronautics,2005,37(5):659-663.(in Chinese)
[12]	董伟锋,肖军,李勇.2.5维编织复合材料力学性能的有限元分析[J].材料科学与工程学报,2007,25(5):657-661. DONG Weifeng,XIAO Jun,LI Yong.Finite element analysis of the mechanical properties of 2.5D braided composites[J].Journal of Materials Science and Engineering,2007,25(5):657-661.(in Chinese)
[13]	卢子兴,刘振国,麦汉超.三维编织复合材料强度的数值预报[J].北京航空航天大学学报,2002,28(5):563-565. LU Zixing,LIU Zhenguo,MAI Hanchao.Numerical prediction of strength for 3D braided composites[J].Journal of Beijing University of Aeronautics and Astronautics,2002,28(5):563-565.(in Chinese)
[14]	庞宝君,杜善义,韩杰才,等.三维多向编织复合材料非线性本构行为的细观数值模拟[J].复合材料学报,2000,17(1):98-102. PANG Baojun,DU Shanyi,HAN Jiecai,et al.Nonlinear behaviour of the constitutive simulation of meso-scopic computational mechanics for 3D braided composites[J].Acta Materiae Compositae Sinica,2000,17(1):98-102.(in Chinese)
[15]	徐焜,许希武.三维编织复合材料渐进损伤的非线性数值分析[J].力学学报,2007,39(3):398-407. XU Kun,XU Xiwu.Nonlinear numeric analysis of progressive damage of 3D braided composites[J].Chinese Journal of Theoretical and Applied Mechanics,2007,39(3):398-407.(in Chinese)
[16]	郑君,温卫东,崔海涛.2.5维机织复合材料强度准则[J].材料科学与工程学报,2012,30(5):672-676. ZHENG Jun,WEN Weidong,CUI Haitao.Failure criteria of 2.5D woven composites[J].Journal of Materials Science and Engineering,2012,30(5):672-676.(in Chinese)
[17]	朱元林.碳/碳复合材料疲劳寿命预测模型与分析方法研究[D].南京:南京航空航天大学,2012. ZHU Yuanlin.Research on prediction of damage failure and fatigue life for C/C composites[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2012.(in Chinese)
[18]	郑君.2.5维机织复合材料刚度预测及失效准则研究[D].南京:南京航空航天大学,2008. ZHENG Jun.Research on elastic property prediction and failure criteria of 2.5D woven composites[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2008.(in Chinese)