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损伤模拟
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  damage states simulation
    At the same time, simple evaluation is given to the present methods of damage states simulation and points out that this kind of damage states appears as a abrupt result, which doesn' t come up to the fact for the actual damage states have to experience a course of damage accumulation, so it breaks the continuance of feasibility verifying and makes only two points, namely pre-damage and step-damage, is checked.
    同时对现行的损伤模拟方法进行了简单评价,指出这些方法所模拟的损伤是以一种突变的形式出现的,使得检验过程演变为对损伤前后两种状态下损伤诊断方法的有效性进行检验,这与结构损伤程度逐步加深的实际情况不符,且导致了检验过程的不连续。
短句来源
  “损伤模拟”译为未确定词的双语例句
    Study on simulation of statistical damage in the full process of rock failure
    岩石破裂过程的统计损伤模拟研究
短句来源
    Anisotropic Elastic-plastic Damage Modeling of Saturated Rock
    饱和岩石各向异性弹塑性损伤模拟(英文)
短句来源
    The paper also described the multi-level damage detection technology and tactics realized based on the neural network. Used computer to simulate different damage of a frame structure, detected the structure by the trained network.
    论述了基于神经网络的多级损伤检测技术及实现策略,并对一框架结构进行了损伤模拟,应用多级神经网络进行损伤检测。
短句来源
    (4)The difference of the result when adopting the two different ways of simulating part damageis small.
    (4) 采用两种不同的损伤模拟方式对损伤进行识别分析,其识别效果相差不大。
短句来源
    Cracks can be simulated as many models according to different theories. Here, damage is simulated as a small part of constant cross section, diminished inertia moment to compare with the results of a rotational spring model.
    梁损伤可以有多个模型来模拟,在使用转动弹簧模型计算之后,本文又计算了把梁损伤模拟为一段惯性矩减小、截面不变的梁,对此方法进行了理论分析,并通过数值计算,与前面的比较发现,相差不大。
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  simulate the damage
The present method may be a good tool to simulate the damage accumulation problem of CFRP laminates.
      
An interface element which accounts for the properties of both material strength and fracture mechanics is proposed to numerically simulate the damage propagation process in composite laminates.
      
Damage mechanics constitutive model for eutectic Pb/Sn solder alloys is used to simulate the damage effects of concurrent cyclic thermal loads and vibrations on Ball Grid Array (BGA) packages.
      
Then, to simulate the damage process in its entirety, we have interfaced these calculations of the energy absorption with a 2-D Lagrange-Euler hydrodynamics code, which can simulate crack formation and propagation leading to craters.
      
Based on the thermal kinetic and mass conservation, a series of controlling equations for the finite element are derived and related programs are developed to simulate the damage microcrack healing process controlled by surface diffusion.
      
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In this paper, by using the shaking table test of one-story and multi-storyR.C frame models, the effect of their earthquake damage on the dynamical properties is brougth to light. Then, in accordance with the fundamental theory of dam age mechanics, an earthquake damage model experessed by the identificableparameter is presented. Thirdly, an identification method of the damage stateparameters of struCture is proposed to evaluate the structural earthquake damageTherefore, a theoretical foundation is provided...

In this paper, by using the shaking table test of one-story and multi-storyR.C frame models, the effect of their earthquake damage on the dynamical properties is brougth to light. Then, in accordance with the fundamental theory of dam age mechanics, an earthquake damage model experessed by the identificableparameter is presented. Thirdly, an identification method of the damage stateparameters of struCture is proposed to evaluate the structural earthquake damageTherefore, a theoretical foundation is provided for the identification of R.C. structural earthquake damage and for the structural retrofit.

通过单层及多层钢筋混凝土框架模型的地震损伤模拟试验,揭示了钢筋混凝上结构地震损伤与动力特性变化的关系;根据损伤力学方法,建立了利用可识别参数的地震损伤模型;提出了结构损伤状态参数的识别方法和以此为基础估计结构地震损伤的方法,从而为钢筋混凝土框架结构的震后损伤识别和修复加固提供了理论依据.

In this paper, the effect and the feasibility of seismic retrofit of R.C. frame using energy dissipation device are presented. In the experiment, a two-story and a three-story shear type R.C. frame are made. Firstly, a simulative earthquake damage test is carried out. Then, the method of parameter of earthquake damaged structure is established. The retrofit design rule with energy dissipation device is set up. Based on these results, two damaged R.C. frames are retrofitted. Again the retrofitted frame are tested...

In this paper, the effect and the feasibility of seismic retrofit of R.C. frame using energy dissipation device are presented. In the experiment, a two-story and a three-story shear type R.C. frame are made. Firstly, a simulative earthquake damage test is carried out. Then, the method of parameter of earthquake damaged structure is established. The retrofit design rule with energy dissipation device is set up. Based on these results, two damaged R.C. frames are retrofitted. Again the retrofitted frame are tested on the shaking table.The test results show that the retrofit method is feasible.

本文通过地震模拟振动台试验研究用耗能减震装置修复震后有损伤钢筋混凝土框架的效果和可行性。文中制作了两层和三层两座钢筋混凝土剪切型框架,首先进行了地震损伤模拟试验;其次提出了震后有损伤结构的参数识别方法、修复准则和修复用耗能减震装置的设计准则;在此基础上,采用了软钢屈服型耗能器对两座试验框架在地震损伤后进行修复,并再次对修复后的框架模型进行地震模拟试验,证实了采用这种修复措施可以恢复震后有损伤结构的抗震能力。

The strain gradient enhanced damage model based on strain gradient theory and continuum damage mechanics is established and applied to forecasting the localized damage in rock material.In FEM calculation of plane problem,the combination of nodal strain gradient determined by finite differential method with traditional FEM can avoid large modification of original FEM code and attain high efficiency and high accuracy.A tetrahedron C\-1\|continuum element is proposed to simulate the 3\|D problem.The validity of...

The strain gradient enhanced damage model based on strain gradient theory and continuum damage mechanics is established and applied to forecasting the localized damage in rock material.In FEM calculation of plane problem,the combination of nodal strain gradient determined by finite differential method with traditional FEM can avoid large modification of original FEM code and attain high efficiency and high accuracy.A tetrahedron C\-1\|continuum element is proposed to simulate the 3\|D problem.The validity of the simulation is verified by uniaxial tension and compression test data.

本文提出基于应变梯度的损伤模型 ,并用于材料局部化损伤模拟预测中。在有限元数值计算中对平面问题 ,使用平面高阶连续高精度单元和有限差分方法耦合 ,在保证精度情况下可提高计算效率 ,还避免对传统有限元程序作较大的改动 ;对三维情况 ,本文构造了四面体高阶连续单元。算例表明该模型对于避免有限元数值方法局部化预测模拟的单元网格依赖性有非常好的效果 ,其预测出的局部化损伤与实际破坏情况非常相近

 
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