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...

双相介质界面附近裂纹的断裂力学特征

, PP. 78-82

Keywords: 双相介质,界面,裂纹,能量释放率,J,积分守恒性

Full-Text   Cite this paper   Add to My Lib

Abstract:

复合材料界面附近的力学性态对于材料的性能和强韧化影响是非常重要的。首先研究和讨论了含裂纹的双相介质的J积分守恒定律的适用性问题,采用有限元法证明了当裂纹平行靠近界面时,其J积分数值与裂纹位置无关的假设。文中建立了一种双相介质界面附近存在斜裂纹的分析模型,用有限元和数值拟合相结合的方法,得到了在远场单轴拉应力作用下,斜裂纹处在不同介质中,近界面一端裂尖的é型能量释放率近似计算公式,和相应的应力强度因子的计算方法。

References

[1]  吴人洁. 金属基复合材料的现状与展望[J]. 金属学报, 1997,33 (1) : 78284.
[2]   蔡 叶, 苏华钦. SiCP/AZ80 镁基复合材料的界面与断口特征[J]. 复合材料学报, 1997, 14 (2) : 76279.
[3]   郝 远, 陈休军, 寇生中. 铸造成Grp. SiCP/ ZA 27 混杂复合材料磨损行为的研究[J]. 复合材料学报, 1998, 15 (1) : 56261.
[4]   刘 宁, 徐根应, 许育东, 等. 金属陶瓷热冲击疲劳裂纹形成机理[J]. 复合材料学报, 1998, 15 (2) : 36241.
[5]  Lammerant L.Vorpoest I The interaction between matrix cracks and delaminations during quasi-static impact of composites 1994
[6]  Liu Gang.Shang J K Subcritical crack growth at bimaterial interface: Part II.Microstructural effects on fracture resistance of metal/ceramic interfaces 1996
[7]  Akisanya A K.Fleck N A Brittle fracture of adhesive joints 1992
[8]  Yu H.Yang W Mechanics of transonic debonding of a bimaterial interface:the in-plane case 1995(02)
[9]  Evans A G.Hutchinson J W The thermomechanical integrity of thin films and multilayers 1995(07)
[10]  Hutchinson J W.Mear M E.Rice J R Crack paralleling an interface between dissimilar materials 1987
[11]  Chen Haoran.Wang Limin.Karihaloo B L Fracture mechanics for multi-materials with interface crack 1998
[12]  Zuo Z.Hutchinson J W Sandwich test specimen for measuring interface crack toughness 1989
[13]  Rice J R A path independent integral and the approximate analysis of strain concentration by notches and cracks 1968
[14]  Hutchinson J W Fundamentals of the phenomenological theory of nonlinear fracture mechanics 1983
[15]  Dundur J Edge-bonded dissimilar orthogonal elastic wedges under normal and shear loading 1969
[16]  Romeo A.Ballarini R A crack very close to a bimaterial interface 1995
[17]  Shih C F.Asaro R Elastic-plastic analysis of cracks on bimaterial interfaces:Part 1.Small scale yielding 1988

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133