|
OALib Journal期刊
ISSN: 2333-9721
费用：99美元
|
|
|
|
大模量比短纤维增强复合材料应力分布预测
DOI: 10.3969/j.issn.1671-7627.2015.02.013, PP. 65-69
Keywords: 短纤维,复合材料,大模量比,应力分布,有限元
Abstract:
提出了适用于纤维模量远大于基体模量时短纤维增强复合材料(sfrc)轴向应力分布的预测公式。建立了sfrc的轴对称单胞模型,对不同模量比下sfrc的纤维轴向应力分布进行了数值计算。通过与现有理论模型得到的应力分布对比表明,当纤维和基体弹性模量比小于37时,现有理论模型得到的纤维轴向应力和界面剪切应力均与有限元分析结果相吻合;当模量比大于37时,现有理论模型得到的界面剪应力与有限元分析结果基本保持一致,但是纤维轴向应力与有限元分析结果相差较大。与hsueh模型相比,提出的预测公式与实验结果更为接近。
| [1] | coxhl.theelasticityandstrengthofpaperandotherfibrousmaterials[j].britishjournalofappliedphysics,1952,3(3):72-79.
|
| [2] | starinkmj,syngellakiss.shearlagmodelsfordiscontinuouscomposites:fibreendstressesandweakinterfacelayers[j].materialsscienceandengineering:a,1999,270(2):270-277.
|
| [3] | nardonevc,prewokm.onthestrengthofdiscontinuoussiliconcarbidereinforcedaluminumcomposites[j].scriptametallingica,1986,20(1):43-48.
|
| [4] | clynetw.asimpledevelopmentoftheshearlagtheoryappropriateforcompositeswitharelativelysmallmodulusmismatch[j].materialsscienceandengineering:a,1989,122(2):183-192.
|
| [5] | hsuehch.amodifiedanalysisforstresstransferinfibrereinforcedcompositeswithbondedfibreends[j].journalofmaterialsscience,1995,30(1):219-224.
|
| [6] | nairsv,kimhg.modificationoftheshearlaganalysisfordeterminationofelasticmodulusofshort-fiber(orwhisker)reinforcedmetalmatrixcomposites[j].journalofappliedmechanics,1992,59(2):s176-s182.
|
| [7] | okabet,takedan.estimationofstrengthdistributionforafiberembeddedinasingle-fibercomposite:experimentsandstatisticalsimulationbasedontheelasto-plasticshear-lagapproach[j].compositesscienceandtechnology,2001,61(12):1789-1800.
|
| [8] | coffeyab,o’bradaighcm,youngrj.interfacialstresstransferinanaramidreinforcedthermoplasticelastomer[j].journalofmaterialsscience,2007,42(19):8053-8061.
|
| [9] | 李红周,贾玉玺,姜伟,等.纤维增强复合材料的细观力学模型以及数值模拟进展[j].材料工程,2006(8):57-65.
|
| [10] | 张志成,郑元锁.短纤维复合材料应力传递理论研究进展[j].橡胶工业,2003,50(2):116-122.
|
| [11] | 孙开俊,顾伯勤,周剑锋,等.单向短纤维增强复合材料纵向弹性模量预测[j].南京工业大学学报:自然科学版,2011,33(2):85-88.
|
Full-Text
|
|
Contact Us
service@oalib.com QQ:3279437679 
WhatsApp +8615387084133
|
|
