全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

残余应力对复合材料弹2塑性变形的影响

, PP. 60-65

Keywords: 残余应力,复合材料,细观力学,弹塑性

Full-Text   Cite this paper   Add to My Lib

Abstract:

从细观力学的角度给出了分析残余应力对一般复合材料塑性性能影响的一种解析方法,该方法基于应力二阶矩的割线模量法及PonteCastaneda和Willis给出的弹性细观模型。有残余应力时,所提的细观解析模型能够同时考虑纤维形状,体积百分比,纤维取向及纤维的分布对复合材料变形的影响。计算结果表明,残余应力的存在会引起复合材料拉压变形的不对称,材料宏观的拉压硬化曲线又与复合材料的细观结构参数密切相关。对单向复合材料,本文作者对其等效割线热膨胀系数,拉压应力-应变曲线的有限元分析结果与给出的细观解析模型定量吻合。

References

[1]  Shibata S.Taya M.Mori T.Mura T Dislocation punching from spherical inclusions in a metal matrix composite 1992
[2]  Arsenault R J.Taya M Thermal residual stress in metal matrix composite 1987
[3]  Withers P J.Stobbs W M.Pederson O B The application of the Eshelby method of internal stress determination for short fiber metal matrix composites 1989
[4]  Ramakrishnan N An analytical study on strengthening of particulate reinforced metal matrix composites 1996
[5]  Hu G K.Weng G J Influence of thermal residual stresses on the composite macroscopic behavior 1998
[6]  Hu G K.Weng G J Some reflections on the Mori-Tanaka and Ponte Casdaneda-Willis methods with randomly oriented ellipsoidal inclusion 2000
[7]  Mori T.Tanaka K Average stress in matrix and average elastic energy of materials with misfitting dislocation 1973
[8]  Ponte Castaneda P.Willis J R The effect of spatial distribution on the effective behavior of composite and cracked media 1995
[9]  Willis J R Variational and related methods for the overall properties of composite 1981
[10]  Laws N On the thermostatics of composite materials 1973
[11]  Weng G J Explicit evaluation of Willis bounds with ellipsoidal inclusions 1990
[12]  Mura T Micromechanics of defects in solids 1987
[13]  Hu G K A method of plasticity for general aligned spheroidal void or fiber reinforced composites 1996
[14]  Hu G K Composite plasticity based on second order stress moment 1997
[15]  Berveiller M.Zaoui A An extension of the self-consistent scheme to plastically-flowing polycrystals 1979
[16]  Tandon G P.Weng G J A theory of particle-reinforced plasticity 1988
[17]  胡更开, 侯静春. 复合材料宏观性能细观预测[J]. 北京理工大学学报, 1995, 15: 265~ 270.
[18]  Corbin S F.Wilkinson D S.Embury J D The Bauschinger effect in a particulate reinforced Al alloy 1996
[19]  Llorca J.Martin A.Ruiz J.Elices M Particulate fracture during deformation of a spray formed metal matrix composite 1993
[20]  Dutta I.Sims J D.Seigenthaler D M An analytical study of residual stress effects on uniaxial deformation of whisker reinforced metal-matrix composites 1993

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133