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非局部弹性
相关语句
  nonlocal elastic
    Buckling of a single wall carbon nanotube under an axial pressure based on the nonlocal elastic theory
    基于非局部弹性理论的单壁碳纳米管轴向受压屈曲研究
短句来源
    A shallow shell model is developed for the elastic buckling of a single wall carbon nanotube under a uniform external axial pressure by using the nonlocal elastic theory.
    基于非局部弹性理论,在考虑小尺度效应影响的情况下,建立了单壁碳纳米管在均匀轴向外部压力下的壳体模型.
短句来源
  “非局部弹性”译为未确定词的双语例句
    The small scalar effect is considered when the relation of stress and strain is decided.
    基于非局部弹性理论,在考虑小尺度效应影响的情况下,建立了纳米丝的应力-应变关系。
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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.
      
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  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
      
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This paper addresses a few dynamic problems of carbon nanotubes through the illustrative examples of(5, 5)and(10, 10)armchair single-walled carbon nanotubes.It presents the results of molecular dynamics simulation for the normal impact of the carbon nanotubes with a rigid Wall,and the simulation results of the propagation of harmonic longitudinal waves in the carbon nonatubes.It also demonstrates the validity of dynamic model of an elastic rod for those dynamic problems.The elastic rod model enables one to study...

This paper addresses a few dynamic problems of carbon nanotubes through the illustrative examples of(5, 5)and(10, 10)armchair single-walled carbon nanotubes.It presents the results of molecular dynamics simulation for the normal impact of the carbon nanotubes with a rigid Wall,and the simulation results of the propagation of harmonic longitudinal waves in the carbon nonatubes.It also demonstrates the validity of dynamic model of an elastic rod for those dynamic problems.The elastic rod model enables one to study the high-speed impact of an armchair single-walled carbon nanotube with a rigid wall,but the model should include the effect of microstructures in those carbon nanotubes when the wave dispersion is under study.

以单壁纳米碳管为例,建立了其分子动力学模型,并对(5,5)和(10,10)扶手椅型纳米碳管与刚性壁的正碰撞过程和简谐纵波传播过程进行了模拟.在此基础上,探讨如何用弹性杆模型来研究纳米碳管的动力学问题。研究表明,弹性杆模型可以描述单壁扶手椅型纳米碳管与刚性壁高速碰撞的动力学行为;对于纵波传播中的色散描述,则需在弹性杆模型中计入纳米碳管微结构引起的非局部弹性效应.

The tensile test of metal nanorods is done by molecular dynamics and tensile stresses and strains of the metal nanorods are obtained. The small scalar effect is considered when the relation of stress and strain is decided. The elastic modulus of the metal nanorod has been calculated based on the relation between stress and strain according to nonlocal elastic theory, the small size effect on the elastic modulus has been modified.

用分子动力学的方法来模拟金属纳米丝的拉伸实验,得到纳米丝屈服前每一位移步的应力、应变值;基于非局部弹性理论,在考虑小尺度效应影响的情况下,建立了纳米丝的应力-应变关系。根据应力-应变关系,利用分子动力学模拟得到的纳米丝的应力、应变数值计算出金属纳米丝的拉伸弹性模量,修正了小尺度效应对纳米丝弹性模量的影响。

A shallow shell model is developed for the elastic buckling of a single wall carbon nanotube under a uniform external axial pressure by using the nonlocal elastic theory. Effects of the small size scale are incorporated in the formulation. Critical conditions are given under the axial buckling pressure for a single-wall carbon nanotube. Influences of the small size scale on the axial buckling pressure are found. It is concluded that the axial buckling pressure for a carbon nanotube could be overestimated by...

A shallow shell model is developed for the elastic buckling of a single wall carbon nanotube under a uniform external axial pressure by using the nonlocal elastic theory. Effects of the small size scale are incorporated in the formulation. Critical conditions are given under the axial buckling pressure for a single-wall carbon nanotube. Influences of the small size scale on the axial buckling pressure are found. It is concluded that the axial buckling pressure for a carbon nanotube could be overestimated by the classic shell model without considering the effect of the small size scale.

基于非局部弹性理论,在考虑小尺度效应影响的情况下,建立了单壁碳纳米管在均匀轴向外部压力下的壳体模型.得到了单壁碳纳米管的轴向受压屈曲的临界条件,验证了小尺度效应对纳米管轴向受压屈曲的影响.经典的壳体模型理论由于没有考虑小尺度效应影响而导致碳纳米管轴向屈曲临界压力值偏高.

 
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