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damage parameter d
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  损伤参量d
     It is proved that the acoustic emission count N shows no difference with damage parameter D. The acoustic emission count N is therefore used to describe the constitutive relation of the rock.
     文中还证明,声发射积累N的变化与损伤参量D具有一致性,得到了用声发射积累N描述的岩石本构关系。
短句来源
     Based on the analysis of the ultrasonic wave attenuation of crack damage in rocks,the connection of damage parameter D with attenuation coefficient a has been formulated. The crack set has been formed,by which the distribution character of flaw length and quantity can be expressed.
     在分析岩石裂隙损伤声衰减基础上,形成了损伤参量D与衰减系数α的关系式,建立了表达缺陷尺度与数量分布特征的裂隙集合。
短句来源
     When one dimensional tensioning steel fiber reinforced concrete its damage behavior is researched. And damage evolution equation and damage constitutive equation are determined. According to the curve of one dimensional tension test the changeable law about damage parameter D is obtained.
     研究了钢纤维混凝土一维拉伸时的损伤行为 ,建立了损伤演化方程及损伤本构方程 ,并根据钢纤维混凝土一维拉伸试验曲线得到了损伤参量D的变化规律 ,提出了一种由损伤行为预测材料泊松比变化的矩形模型
短句来源
  “damage parameter d”译为未确定词的双语例句
     ln this paper, the authors make use of a physical quantity, the intensity ratio K of laser diffraction spectrum, directly connected with surface roughness of metals, and define a fatigue damage parameter D(K). The detection of tension tension non symmetry fatigue damage of 30CrMnSiA is proceeded, the results of the test show the method is reliable. Moreover, the micromechanism of fatigue damage in different fatigue cycles is investigated by the use of the scaning eletron microscope.
     利用激光反射衍射谱面光强随疲劳损伤试样表面逐步粗糙化而变化的原理,用一种非接触、非破坏的间接疲劳损伤检测方法,对30CrMnSiA材料轴线平行于轧制方向(L)和垂直于轧制方向(T)两种不同试样进行拉——拉非对称循环疲劳损伤检测,证明谱面光强比K对疲劳损伤是敏感的;
短句来源
     Theoretical study and experiments show that in calculation, for the damage definition in this paper, damage parameter D=0.40 can be used to define the edge of fragmentation field of limestone. The experimental blast funnel is simulated with numerical method and the result shows that D=0.40 is feasible to be used to define the edge of fragmentation field.
     将岩石高速冲击损伤实验所获得的损伤参数D=0.40作为破碎区的边界,对现场爆破漏斗实验进行了数值模拟,证明应用D=0.40作为破碎区边界完全可行。
短句来源
     Both the damage parameter D vs. creep time and the fractal dimension vs. creep time curves include two stages: a fast developing stage of creep damage followed by a slower changing stage.
     用分形维数和弹性模量衰减都可表征2D-C/SiC的蠕变损伤,两种损伤参量所描述的蠕变损伤总的发展趋势基本一致,即蠕变开始阶段损伤发展较快,随后进入缓慢发展的第二阶段。
短句来源
  相似匹配句对
     A UNIFIED MULTIAXIAL FATIGUE DAMAGE PARAMETER
     一种统一的多轴疲劳损伤参量
短句来源
     Definition and measuring method of the“damage parameter”were suggested.
     由此提出了“损伤参数”D的定义和测量方法;
短句来源
     A New Parameter for Multiaxial Fatigue Damage
     一种新的多轴疲劳损伤参量
短句来源
     Parameter Identification of a Plasticity-based Damage Model
     一个基于塑性的损伤本构模型的参数辨识
短句来源
     THE DAMAGE-BACK ANALYSIS STUDYOF ROCK MECHANICS PARAMETER
     岩体力学参数的损伤─—反分析优化性研究
短句来源
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  damage parameter d
The damage is included by a damage parameter D, which converges to "one" with increasing damage.
      


The application of ultrasonic technique to a new area, Damage Mechanics, for evaluating the plastic damage characterized by micro-defects in metal is tentatively proposed. The relationship between the isotropic damage parameter D and the sound velocity in damaged material is found. The plastic damage of three different nodular case iron specimens were measured.

本文试图将超声技术应用于新的领域——损伤力学,去估价金属材料的微观缺陷(由塑性变形引起的)所产生的损伤.建立了超声参数与材料损伤变量D之间的联系,并用这个技术测量了三种球墨铸铁的塑性损伤.

The methods for measuring the damage parameters D and Ω are given. The relations of D-εp, Q-εp and D-σ for two kinds of steel sheet were determined experimentally. The factors σD, σu and s for the material were obtained, and the linear relation between parameters D and Ω found. The behaviours of the origina damage and its influence on the damaging process and three different stages in the evolution of micro- void are described.

本文论述了测量损伤参数D、Ω的方法,由实验确定了两种钢板塑性损伤的D~ε_p、Ω-ε_p、D~σ及D~Ω的关系;给出了损伤演变方程中的材料常数σ_D、σ_u及s的值,描述了初始损伤的特征及其对损伤演变的影响以及损伤过程中孔隙的形核、长大和聚合三个不同阶段的特征。

The damage theory of rock is used to introduce the statistic distribution function of microelement strength for rock materials, in which the regularity of acoustic emission counts N vs. strain e is deduced theoretically. For the cfect loading condition, the Kaiser effect function is also given in this paper. It is proved that the acoustic emission count N shows no difference with damage parameter D. The acoustic emission count N is therefore used to describe the constitutive relation of the rock....

The damage theory of rock is used to introduce the statistic distribution function of microelement strength for rock materials, in which the regularity of acoustic emission counts N vs. strain e is deduced theoretically. For the cfect loading condition, the Kaiser effect function is also given in this paper. It is proved that the acoustic emission count N shows no difference with damage parameter D. The acoustic emission count N is therefore used to describe the constitutive relation of the rock. The theoretical result agress quite well with that from experiments.

本文运用岩石的损伤理论,通过对岩石材料微元强度的统计分布假设,得到声发射积累N随应变ε的变化规律,并对于循环加载情形,给出了Kaiser效应函数的通式。文中还证明,声发射积累N的变化与损伤参量D具有一致性,得到了用声发射积累N描述的岩石本构关系。理论结果与实验资料吻合很好。

 
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