国家自然科学基金(11172095)

作品数：6被引量：1H指数：1
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相关作者：方棋洪张艳兵刘又文冯慧更多>>
相关机构：湖南大学更多>>
相关期刊：《Acta Mechanica Solida Sinica》《固体力学学报》《Chinese Physics B》《Applied Mathematics and Mechanics(English Edition)》更多>>
相关主题：INTERACTINGDISCLINATIONDIPOLEDISLOCATIONTHREE-PHASE更多>>
相关领域：一般工业技术理学金属学及工艺更多>>
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A WEDGE DISCLINATION DIPOLE INTERACTING WITH A COATED CYLINDRICAL INHOMOGENEITY
《Acta Mechanica Solida Sinica》2015年第1期62-73,共12页Yingxin Zhao Qihong Fang Youwen Liu 
Project supported by the National Natural Science Foundation of China(Nos.11172094 and 11172095);the New Century Excellent Talents in University(NCET-11-0122);Hunan Provincial Natural Science Foundation for Creative Research Groups of China(No.12JJ7001)
A three-phase composite cylinder model is utilized to study the interaction of a wedge disclination dipole with a coated cylindrical inhomogeneity. The explicit expression of the force acting on the wedge disclination...
关键词：three-phase composite disclination dipole coating layer complex variable function method 
Dislocation stability in three-phase nanocomposites with imperfect interface
《Acta Mechanica Sinica》2014年第5期693-702,共10页Ying-Xin Zhao You-Wen Liu Qi-Hong Fang 
supported by the National Natural Science Foundation of China(11172094 and 11172095);the NCET-11-0122 and Hunan Provincial Natural Science Foundation for Creative Research Groups of China(12JJ7001)
Interface imperfection can significantly affect the mechanical properties and failure mechanisms as well as the strength and toughness of nanocomposites. The elastic behavior of a screw dislocation in nanoscale coatin...
关键词：Nanocomposites -Dislocation Imperfect inter- face - Interface effect Complex variable method 
Elastic behavior of disclination dipole near nanotube with surface/interface effect
《Chinese Physics B》2014年第3期77-90,共14页赵迎新 曾鑫 陈昌萍 
Project supported by the National Natural Science Foundation of China(Grant Nos.11172094 and 11172095);the Program for New Century Excellent Talents in University of Ministry of Education of China(Grant No.NCET-11-0122);the Hunan Provincial Natural Science Foundation for Creative Research Groups,China(Grant No.12JJ7001)
In this paper, we present an analytical solution of the interaction of the nanotube （NT） with a wedge disclination dipole in nanotube-based composites. The corresponding boundary value problem is solved exactly by u...
关键词：nanotube-based composites disclination dipole nanotube thickness surface/interface effect 
穿透夹杂界面的半无限楔形裂纹尖端螺型位错的发射研究被引量：1
《固体力学学报》2013年第5期501-507,共7页张艳兵 冯慧 方棋洪 刘又文 
国家自然科学基金(11172094和11172095);湖南大学汽车先进设计制造国家重点实验室自主课题(61075005,51075001)资助
研究了穿透圆形夹杂界面的半无限楔形裂纹与裂纹尖端螺型位错的干涉问题.应用复变函数解析延拓技术与奇性主部分析方法,得到了位错位于半圆形夹杂内部时,半无限基体和半圆形夹杂内复势函数的解析解.然后利用保角映射技术得到了穿透圆形...
关键词：半无限楔形裂纹 圆形夹杂 螺型位错 屏蔽效应 位错发射 
Electroelastic interaction between piezoelectric screw dislocation and circularly layered inclusion with imperfect interfaces
《Applied Mathematics and Mechanics(English Edition)》2013年第1期45-62,共18页方棋洪 冯慧 刘又文 
Project supported by the National Natural Science Foundation of China(Nos.11172094 and 11172095);the Program for New Century Excellent Talents in University of China(No.NCET-110122);the Science Fund of State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body(Nos.61075005 and 51075001);the Hunan Provincial Natural Science Foundation for Creative Research Groups of China(No.12JJ7001)
The interaction between a piezoelectric screw dislocation and an interphase layer in piezoelectric solids is theoretically investigated. Here, the dislocation located at arbitrary points inside either the matrix or th...
关键词：composite material DISLOCATION PIEZOELECTRICITY mechanical property 
Screw dislocations interacting with two asymmetrical interfacial cracks emanating from an elliptical hole
《Chinese Physics B》2013年第1期356-362,共7页曾鑫 方棋洪 刘又文 P. H. Wen 
Project supported by the National Natural Science Foundation of China (Grant Nos. 11172094 and 11172095);the Program for New Century Excellent Talents in University of Ministry of Education of China (Grant No. NCET-11-0122);the Science Fund of State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, China (Grant Nos. 61075005 and 51075001);the Fundamental Research Funds for the Central Universities (Hunan University), China
The interaction between screw dislocations and two asymmetrical interfacial cracks emanating from an elliptic hole under loads at infinity is studied. The closed-form solution is derived for complex potentials. The st...
关键词：interfacial crack elliptic hole shielding effect dislocation emission 
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