国家自然科学基金(11090333)

作品数：7被引量：19H指数：2
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Line-integral representations for extended displacements, stresses,and interaction energy of arbitrary dislocation loops in transversely isotropic magneto-electro-elastic bimaterials被引量：1
《Applied Mathematics and Mechanics(English Edition)》2014年第8期1005-1028,共24页袁江宏 陈伟球 E.PAN 
Project supported by the National Project of Scientific and Technical Supporting Programs Funded by Ministry of Science&Technology of China(No.2009BAG12A01-A03-2);the National Natural Science Foundation of China(Nos.10972196,11090333,11172273,and 11321202)
In addition to the hexagonal crystals of class 6 mm, many piezoelectric materials （e.g., BaTiO3）, piezomagnetic materials （e.g., CoFe2O4）, and multiferroic com-posite materials （e.g., BaTiO3-CoFe2O4 composites）...
关键词：dislocation loop MULTIFERROIC transverse isotropy BIMATERIAL half space extended displacement extended stress interaction energy 
半无限土体圆形隧道结构中地震波的传播
《东北大学学报（自然科学版）》2014年第2期299-304,共6页杨旭姣 胡振东 梁君 贾洪瑞 
国家自然科学基金资助项目(11090333)
基于弹性波的散射理论,研究了半无限土体内圆形隧道中土体对SH波的多重散射和动应力集中,采用波函数展开法和镜像法,将待解问题归结为一组无穷代数方程组的求解,得到了问题的解析解.作为算例,给出了衬砌附近动应力集中因子的数值解,分...
关键词：圆形隧道 SH波散射 边界条件 动应力集中因子 解析解 
空气耦合层状复合材料的声传播研究被引量：10
《固体力学学报》2014年第1期8-14,共7页刘磊 杨扬 潘永东 仲政 
国家自然科学基金项目(10834009,11090333);中央高校基本科研业务费专项资金同济大学(0270219037)资助
论文研究了空气耦合层状复合材料的声传播.从基本波动方程出发,由气固边界条件,利用势函数法求解声波任意角入射层状复合材料的声传播,并通过数值计算得到其透声系数幅度和相位随频率变化的规律.基于MATLAB建立了测量任一入射角透声系...
关键词：空气耦合 层状复合材料 势函数 透射系数 
WAVES IN PRE-STRETCHED INCOMPRESSIBLE SOFT ELECTROACTIVE CYLINDERS:EXACT SOLUTION被引量：4
《Acta Mechanica Solida Sinica》2012年第5期530-541,共12页Weiqiu Chen Huihui Dai 
supported by the National Natural Science Foundation of China (Nos. 10832009 and 11090333);the Fundamental Research Funds for Central Universities (No. 2011XZZX002)
This paper studies wave propagation in a soft electroactive cylinder with an under- lying finite deformation in the presence of an electric biasing field. Based on a recently proposed nonlinear framework for electroel...
关键词：electroelastic waves finite pre-stretch soft electroactive cylinder dispersion rela-tion 
Indentation of a compressible soft electroactive half-space: Some theoretical aspects被引量：1
《Acta Mechanica Sinica》2012年第4期1133-1142,共10页Wen-Liang Zhang Jin Qian Wei-Qiu Chen 
supported by the National Natural Science Foundation of China(10832009 and 11090333);the Fundamental Research Funds for Central Universities(2011XZZX002)
We theoretically study the indentation response of a compressible soft electroactive material by a rigid punch. The half-space material is assumed to be initially subjected to a finite deformation and an electric bias...
关键词：Soft electroactive material Finite pre-stretch Indentation Contact analysis Exact solution 
PHASE FIELD SIMULATION OF DOMAIN SWITCHING IN FERROELECTRIC SINGLE CRYSTAL WITH ELECTRICALLY PERMEABLE AND IMPERMEABLE CRACKS被引量：2
《Acta Mechanica Solida Sinica》2012年第1期1-8,共8页Hua qiao Jie Wang Weiqiu Chen 
supported by the National Natural Science Foundation of China (Nos. 10832009,11002123 and 11090333);the Zhejiang Provincial Natural Science Foundation under grant R6110115;the Chinese Universities Scientific Fund under grant 2009QNA4035;the program of Key Team of Technological Innovation of Zhejiang Province under grant2011R09025-07
Domain switching around electrically permeable and impermeable cracks in ferro-electric single crystals subjected to a mechanical load is investigated by using a phase field model.It is found that the electrical bound...
关键词：ferroelectric ceramics impermeable crack domain switching phase field model 
Surface effect on Bleustein-Gulyaev wave in a piezoelectric half-space被引量：2
《Theoretical & Applied Mechanics Letters》2011年第4期11-14,共4页Weiqiu Chen a) Department of Engineering Mechanics,Zhejiang University,Yuquan Campus,Hangzhou 310027,China 
supported by the National Natural Science Foundation of China (11090333,10832009 and10725210)
Surface effect,which is attributed to the different environment surrounding the surface or near-surface atoms from that embracing the bulk atoms,may become significant when the surface-to-volume ratio of a body is lar...
关键词：surface piezoelectricity plane boundary state-space formalism Bleustein-Gulyaev wave 
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