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非局部弹性    
相关语句
  nonlocal elastic
    Ritz Method for the Frequencies of Nonlocal Elastic Bar
    非局部弹性杆固有频率的Ritz法求解
短句来源
    Vibration of Carbon Nanotubes Based on the Nonlocal Elastic Theory
    基于非局部弹性理论的碳纳米管振动特性研究
短句来源
    TRANSFER FUNCTION METHOD FOR FINDING NATURAL FREQUENCIES OF A NONLOCAL ELASTIC BAR
    非局部弹性杆固有频率求解的传递函数法
短句来源
    APPLICATION OF TRANSFER FUNCTION METHOD TO DYNAMIC ANALYSIS OF A NONLOCAL ELASTIC BEAM
    传递函数法在非局部弹性梁动力学分析中的应用
短句来源
    In this paper, a nonlocal theory of fracture for brittle materials has beenproposed. It contains the nonlocal elastic stress fields of mode-I, II, III Griffith cracks, the asymptotic forms of the stress fields at the neighborhood of the crack tips, and the maximum tensile stress criterion of brittle fracture.
    本文提出一种脆性材料断裂的非局部力学理论,内容包括:Ⅰ、Ⅱ、Ⅲ型Griffith裂纹的非局部弹性应力场,裂纹尖端邻域非局部弹性应力场的渐近形式,脆性开裂的最大拉应力准则。
短句来源
更多       
  nonlocal elasticity
    ON MODIFICATION OF THE LINEAR NONLOCAL ELASTICITY
    线性非局部弹性理论的修正
短句来源
    New Points of View on the Nonlocal Field Theory and Their Applications to the Fracture Mechanics(Ⅲ)——Re_Discuss the Linear Theory of Nonlocal Elasticity
    关于非局部场论的几个新观点及其在断裂力学中的应用(Ⅲ)——重论线性非局部弹性理论
短句来源
    The reported research on carbon nanotubes(CNTs) is introduced, and then statics, buckling and dynamics of CNTs are studied on the basis of micropolar and nonlocal elasticity appropriate to microscopic mechanics,respectively.
    本文综述了碳纳米管国内外研究现状及进展,然后在总结前人研究成果的基础上,应用适合于研究微观力学的微极性弹性理论和非局部弹性理论对碳纳米管的静力学、屈曲以及动力学性能进行了研究。
短句来源
    A three-dimensional problem of disk crack of type I is studied according to the theory of nonlocal elasticity in this paper.
    本文采用非局部弹性理论研究了三维圆盘状Ⅰ型裂纹问题。
短句来源
    In this paper, it is proven that the balance equation of energy is the first integral of the balance equation of momentum in the linear theory of nonlocal elasticity. In other words, the balance equation of energy is not an independent one. It is also proven that the residual of nonlocal body force identically equals zero.
    证明了在线性非局部弹性力学中能量平衡方程是动量平衡方程的首次积分,论证了在非局部场论中局部化体力残余恒为零· 详细推导了线性非局部弹性理论的本构方程,得到了反对称应力存在的新结果
短句来源
  nonlocal elasticity
    ON MODIFICATION OF THE LINEAR NONLOCAL ELASTICITY
    线性非局部弹性理论的修正
短句来源
    New Points of View on the Nonlocal Field Theory and Their Applications to the Fracture Mechanics(Ⅲ)——Re_Discuss the Linear Theory of Nonlocal Elasticity
    关于非局部场论的几个新观点及其在断裂力学中的应用(Ⅲ)——重论线性非局部弹性理论
短句来源
    The reported research on carbon nanotubes(CNTs) is introduced, and then statics, buckling and dynamics of CNTs are studied on the basis of micropolar and nonlocal elasticity appropriate to microscopic mechanics,respectively.
    本文综述了碳纳米管国内外研究现状及进展,然后在总结前人研究成果的基础上,应用适合于研究微观力学的微极性弹性理论和非局部弹性理论对碳纳米管的静力学、屈曲以及动力学性能进行了研究。
短句来源
    A three-dimensional problem of disk crack of type I is studied according to the theory of nonlocal elasticity in this paper.
    本文采用非局部弹性理论研究了三维圆盘状Ⅰ型裂纹问题。
短句来源
    In this paper, it is proven that the balance equation of energy is the first integral of the balance equation of momentum in the linear theory of nonlocal elasticity. In other words, the balance equation of energy is not an independent one. It is also proven that the residual of nonlocal body force identically equals zero.
    证明了在线性非局部弹性力学中能量平衡方程是动量平衡方程的首次积分,论证了在非局部场论中局部化体力残余恒为零· 详细推导了线性非局部弹性理论的本构方程,得到了反对称应力存在的新结果
短句来源
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  nonlocal elastic
The theorem given in this paper can be applied to the theories of the nonlocal elastic mediums and the nonlocal micropolar elastic mediums.
      
It perfects and expands the nonlocal elastic field theory developed by Eringen and others.
      
We show that there is the nonlocal body moment in the nonlocal elastic solids.
      
A nonlocal damage field theory is proposed and a response model of nonlocal elastic damage is given.
      
A constitutive modeling for nonlocal elastic damage near crack tip is proposed.
      
更多          
  nonlocal elasticity
In the linear nonlocal elasticity theory, the solution to the boundary-value problem of the crack with a constant stress boundary condition does not exist.
      
The contents studied contain of examining objectivity of the energy balance, deducing the constitutive equations of nonlocal thermoelastic bodies, and determining nonlocal force and the linear nonlocal elasticity theory.
      
In this paper, it is proven that the balance equation of energy is the first integral of the balance equation of momentum in the linear theory of nonlocal elasticity.
      
When time approaches infinite, the strain of bar is equal to the one of nonlocal elasticity.
      
The image force on a dislocation near an elliptic hole in nonlocal elasticity
      
更多          
  nonlocal elasticity
In the linear nonlocal elasticity theory, the solution to the boundary-value problem of the crack with a constant stress boundary condition does not exist.
      
The contents studied contain of examining objectivity of the energy balance, deducing the constitutive equations of nonlocal thermoelastic bodies, and determining nonlocal force and the linear nonlocal elasticity theory.
      
In this paper, it is proven that the balance equation of energy is the first integral of the balance equation of momentum in the linear theory of nonlocal elasticity.
      
When time approaches infinite, the strain of bar is equal to the one of nonlocal elasticity.
      
The image force on a dislocation near an elliptic hole in nonlocal elasticity
      
更多          
  non-local elasticity
Field equations of the non-local elasticity are solved to determine the state of stress in a plate with a Griffith crack subject to uniform tension.
      
The analysis of crack problems with non-local elasticity
      
In this paper, the displacement discontinuity fundamental solutions (DDFS) corresponding to the unit concentrated displacement discontinuity for plane problems of non-local elasticity are obtained.
      
Based on the displacement discontinuity boundary integral equation (DDBIE) and boundary element method (BEM), a method of analysis of crack problems in non-local elasticity with generalized purpose is proposed.
      
The method of analysis of crack problem in three-dimensional non-local elasticity
      
更多          
  其他


In this paper, a nonlocal theory of fracture for brittle materials has beenproposed. It contains the nonlocal elastic stress fields of mode-I, II, III Griffith cracks, the asymptotic forms of the stress fields at the neighborhood of the crack tips, and the maximum tensile stress criterion of brittle fracture. As an application of the theory, the fracture criteria of cracks of mode-I, II, III and mixed mode I-II, I-III are given in detail and compared with some experimental data and the theoretical results of...

In this paper, a nonlocal theory of fracture for brittle materials has beenproposed. It contains the nonlocal elastic stress fields of mode-I, II, III Griffith cracks, the asymptotic forms of the stress fields at the neighborhood of the crack tips, and the maximum tensile stress criterion of brittle fracture. As an application of the theory, the fracture criteria of cracks of mode-I, II, III and mixed mode I-II, I-III are given in detail and compared with some experimental data and the theoretical results of minimum factor of strain energy density.

本文提出一种脆性材料断裂的非局部力学理论,内容包括:Ⅰ、Ⅱ、Ⅲ型Griffith裂纹的非局部弹性应力场,裂纹尖端邻域非局部弹性应力场的渐近形式,脆性开裂的最大拉应力准则。文中给出了这种理论应用于三种基本型裂纹和Ⅰ-Ⅱ、Ⅰ-Ⅲ复合型裂纹临界开裂条件的计算结果,并把它们与一些试验资料和最小应变能密度因子理论进行了对比。

A three-dimensional problem of disk crack of type I is studied according to the theory of nonlocal elasticity in this paper.The influence function of the axisymmetrical problem is given,and dual integral equations of the problem are derived.An effective method is devised to deal with the nitegral equation of unbounded kernels by changing the unbounded kernel into bounded ones.The nUmerical solution of stress field at the adge of disk crack is presented,it is found that no stress singularity is present at the...

A three-dimensional problem of disk crack of type I is studied according to the theory of nonlocal elasticity in this paper.The influence function of the axisymmetrical problem is given,and dual integral equations of the problem are derived.An effective method is devised to deal with the nitegral equation of unbounded kernels by changing the unbounded kernel into bounded ones.The nUmerical solution of stress field at the adge of disk crack is presented,it is found that no stress singularity is present at the acrck tip.The.;value and distribution of stresses at.the crack tip are also studied in the paper.

本文采用非局部弹性理论研究了三维圆盘状Ⅰ型裂纹问题。给出了轴对称问题的影响函数,导出了圆盘状Ⅰ型裂纹非局部理论解的对偶积分方程。对具有无界核积分方程的求解问题提出了一种有效的解决方法,使无界核问题转化为有界核问题。给出了圆盘状Ⅰ型裂纹问题裂纹尖端应力场的数值解,结果表明,非局部理论消除了本文三维问题裂纹尖端应力场的奇异性,文中还对裂纹尖端应力场的大小和分布等进行了研究。

In this paper, the linear nonlocal elasticity is modified by considering the influence of nonlocal residual force. A stress boundary condition which contains the effect of the long-distance force of micro structure of matter is given in the modified theory. This result not only answers the problem that the solution of the linear nonlocal elasticity under the

本文通过考虑局部化残余力的影响对线性非局部弹性理论进行了修正,由修正后的理论所导出的应力边界条件包含了物体微观结构的长程力的作用,这个结果不仅解释了在裂纹混合边界值问题中线性非局部弹性理论方程的解在常应力边界条件下不存在的问题,而且可以自然地得到裂纹尖端的Barenblatt分子内聚力模型。

 
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