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纳米颗粒对复合材料横向拉伸强度影响的数值模拟 被引量:1

Numerical simulation for the influence of nanoparticles on the transverse tensile strength of composites
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摘要 纤维增强复合材料中添加纳米颗粒能够改性基质,提高材料的横向拉伸强度.建立了复合材料周期性单胞的三维有限元模型,考虑了纤维与基质间的粘结特性,模拟了材料在固化完成后冷却到室温的全过程.基质中未添加纳米颗粒和添加纳米颗粒两种模型的计算结果表明,纳米颗粒减小了纤维与基质间的剪应力,降低了纤维与基质热膨胀系数不匹配引起的残余应力,从而导致复合材料横向拉伸强度提高. The transverse tensile strength of fiber reinforced composite could be increased by involving nanoparticles in the matrix.Three-dimensional finite element models of periodic cells were established to simulate the cooling processes after curing.The interface between fiber and matrix was described with Cohesive bonding.The results of the models with and without nanoparticles were compared.The shear stress in the interface,as well as the residual thermal stress due to the mismatch of the thermal expansion coefficients between matrix and fibers decreased with nanoparticles,which could explain the reinforcing mechanism of nanoparticles.
出处 《中国科学技术大学学报》 CAS CSCD 北大核心 2011年第3期213-218,共6页 JUSTC
基金 国家自然科学基金(10632080)资助
关键词 纳米颗粒 热残余应力 粘结强度 有限元法 nanoparticle thermal residual stress bonding strength finite element method
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参考文献15

  • 1Jiang Zhenyu,Zhang Hui,Zhang Zhong.Improved bonding between PAN-based carbon fibers and fullerence-modified epoxy matrix[J].Composites:Part A,2008,39:1762-1767.
  • 2Hobbiebrunken T,Hojo M,Adachi T,et al.Evaluation of interfacial strength in CF/epoxies using FEM and in-situ experiments[J].Composites:Part A,2006,37:2248-2256.
  • 3Yuan M N,Yang Y Q,Luo H J.Evaluation of interfacial properties in SiC fiber reinforced titanium matrix composites using an improved finite element mode 1[J].Materials Characterization,2008,59:1684-1689.
  • 4Rosso P,Váradi K.FE macro/micro analysis of thermal residual stresses and failure behaviour under transverse tensile load of VE/CF-fibre bundle composites[J].Composites Science and Technology,2006,66:3241-3253.
  • 5Lu Chun,Chen Ping,Yu Qi,et al.Thermal residual stress distribution in carbon fiber/novel thermal plastic composite[J].Applied Composties Materials,2008,15:157-169.
  • 6高庆,康国政,杨川,张娟.高温下短纤维增强金属基复合材料界面的微观结构和热残余应力状态研究[J].复合材料学报,2002,19(4):46-50. 被引量:11
  • 7王惠民,张武.复合材料残余应力的测定及对强度的影响[J].玻璃钢/复合材料,1990(1):1-3. 被引量:1
  • 8Rao M V,Mahajan P,Mittal R K.Effect of architecture on mechanical properties of carboncarbon composites[J].Composite Structures,2008,83:131-142.
  • 9邵军超,刘越.颗粒增强金属基复合材料力学行为有限元模拟研究现状[J].材料导报,2007,21(9):111-115. 被引量:20
  • 10Suh Y S,Joshi S P,Ramesh K T.An enhanced continuum model for size-dependent strengthening and failure of particle-reinforced composites[J].Acta Materialalia,2009,57:5848-5861.

二级参考文献30

共引文献54

同被引文献11

  • 1Gu B Q, Chen Y.Development of a new kind of sealing compositematerial reinforced with aramid and pre-oxidized fibers [ J ]. KeyEngineering Materials, 2007,353 :1243-1246.
  • 2Kim K S, Hahn H T. Residual stress development duringprocessing of graphite/epoxy composites [ J]. Composites Scienceand Technology, 1989,36( 2) : 121-132.
  • 3Kuntz M, Meier B, Grathwohl G, et al. Residual stresses in fiber-reinforced ceramics due to thermal expansion mismatch [ J ].Journal of the American Ceramic Society, 1993,76 ( 10):2607-2612.
  • 4Parlevliet P P, Bersee H E N, Beukers A. Residual stresses inthermoplastic composites : a study of the literature. Part M : effectsof thermal residual stresses [ J ]. Composites Part A: AppliedScience and Manufacturing, 2007,38(6) : 1581-1596.
  • 5Jayaraman K,Reifsnider K L. Residual stresses in a compositewith continuously varying Young's modulus in the fiber/matrixinterphase [ J ]. Journal of Composite Materials, 1992, 26 ( 6):770-791.
  • 6Liu H T,Sun L Z.Effects of thermal residual stresses on effectiveelastoplastic behavior of metal matrix composites[ J].InternationalJournal of Solids and Structures,2004^41(8) :2189-2203.
  • 7胡可文,罗贤,杨延清.纤维增强金属基复合材料中轴向热残余应力分析[J].热加工工艺,2009,38(18):64-67. 被引量:4
  • 8张博明,杨仲,孙新杨,王晓宏.含界面相复合材料热残余应力分析[J].固体力学学报,2010,31(2):142-148. 被引量:9
  • 9樊建平,张斌.树脂基纤维复合材料的热残余应力数值分析[J].材料导报,2011,25(8):115-117. 被引量:4
  • 10时光辉,杨庆生,张蕾.碳化硅增强钛合金基复合材料热残余应力的有限元分析[J].计算机辅助工程,2012,21(4):32-35. 被引量:1

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