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加载波形
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  loading waveform
     EFFECTS OF TEMPERATURE AND LOADING WAVEFORM ON CREEP-FATIGUE CRACK GROWTH OF Ni_3Al(B)
     温度与加载波形对Ni_3Al(B)疲劳-蠕变裂纹扩展行为的影响
短句来源
     The study shows that the solder alloy has a significant strain-rate sensitivity,its instant deformation behavior under uniaxial cyclic loading is dependent on dwell time,loading waveform and strain amplitude,but the dependence of the cyclic deformation behavior on loading history is not significant.
     其单轴循环变形的瞬态行为受到保持时间、加载波形以及应变幅值的影响; 该钎料合金循环变形行为的加载历史依赖性不明显.
短句来源
  loading wave
     The following is concluded conformably from the result of experiment and the numerical simulation:(1) The smaller cross section of cylindrical shaper, the more loading wave is close to sine wave, while the ladder shaper can get appreciatively triangular wave.
     通过实验及数值仿真结果分析一致性表明: (1) 使用圆柱波形整形器,横截面积越小,产生的加载波形越接近正弦波,使用阶梯性的波形整形器组合产生的加载波近似三角性波,它们最大的特点是有较长的上升前沿时间。
短句来源
  load wave
     The Influence of Load Wave on the Rate of Fatigue Crack Growth in Axle Steel
     加载波形对车轴钢疲劳裂纹扩展速率的影响
短句来源
     Using the technology of the electrical potential method to measure the crack lengths,we discuss the effect of load wave on the rate of long and short fatigue crack growth in axle steel.
     采用电位法裂纹测量技术与断口形貌分析相结合,讨论了加载波形对车轴钢长、短裂纹扩展速率的影响。
短句来源
     Hopkinson bar has many prominent advantages,such as simple structure,easy operation,accurate measurement and easy-controlled load wave. It has been widely used in the test of the dynamic compression and tensile performance of the composites. Hopkinson theory and its related factors are discussed in this article.
     霍普金森杆具有结构简单、操作方便、测量方法精巧、加载波形易控制等优点,已经被广泛的用来测试复合材料的动态压缩、拉伸等性能,本文详细介绍了其原理、影响因素,以及这套装置在复合材料测试中的应用和发展。
短句来源
  “加载波形”译为未确定词的双语例句
     Started with the loaded wave of SHPB, the different wave dispersion of different diameter SHPB input bar with rectangle and half-sine wave-formed by using the 3D non-linear dynamic finite element code are analyzed.
     从SHPB实验装置加载波形入手,运用非线性动力分析有限元程序对传统矩形波和改进的半正弦波加载下不同直径入射杆中的波形弥散情形进行分析,显示并验证了SHPB半正弦加载波随杆径增大无明显弥散。
短句来源
     Influences of Loading Speed and Loading Waves on the Tensile Strength of Concrete
     加载速率与加载波形对混凝土抗拉强度的影响
短句来源
     According to the characteristics of high temperature pressure-bearing equipment of petrochemical enterprises and service conditions of 1.25Cr0.5Mo steel, the control mode for fatigue creep, load waveform, test temperature and maximum stress adopted in test are determined.
     根据石化企业高温承压设备的特点和1.25Cr0.5Mo钢的使用情况,确定了疲劳蠕变试验的控制方式、加载波形、试验温度、试验采用的最大应力。
短句来源
     Uniaxial cyclic strain tests for 63Sn-37Pb solder alloy were carried out under different loading
     在室温下对63Sn-37Pb 钎料合金开展了不同加载波形下的单轴应变循环实验。 研究了在具有不同保持时间、不同应变率、不同应变幅值、应变-时间加载波形及其历史对材料的循环变形行为的影响。
     The dynamical Brazilian test under different strain rate varing from 10~{-4}l/s to 10~{-1}l/s has been conducted with three wave forms. The method expands the range of intermediate strain rate in experiments and lays the foundation for the study on dynamic constitutive theory of materials.
     基于INSTRON电液伺服试验机,通过不同的加载频率及加载波形,完成了应变率由10-41/s~10-11/s4个数量级范围内的混凝土准动态抗拉强度试验,从而拓展了中应变速率的实验范围,为材料动态本构关系的研究奠定了理论和实验基础。
短句来源
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  loading waveform
The fragmentation test of granite subjected to strain rate of 100 - 102 s-1 was carried out using split Hopkinson pressure bar(SHPB) whose diameter is 75 mm, where half-sine loading waveform was performed.
      
The effect of loading waveform and amplitude on the fatigue behaviour of intact sandstone was investigated using uniaxial cyclic loading conditions in the laboratory.
      
It was found that loading waveform as well as amplitude is of great significance and affects the rock behaviour.
      
Fatigue tests were carried out at 600 °C with a trapezoidal loading waveform at 0.25 Hz.
      
  loading wave
The dynamical loading on rock with different loading wave shapes conventional SHPB
      
Since loading wave shapes are very important in the study of rock dynamical properties, a new procedure for obtaining a variety of wave shapes using equi-diameter impact hammer of conventional SHPB device is proposed based on theoretical analysis.
      
Experiment shows that different loading wave shapes can be obtained through varying the radius at impact end of hammer.
      
Finally, the variations of loading wave damping and stress phase angles with water depth and soil's parameters have been obtained as loading waves range in ocean waves.
      
The M2 ocean tide loading wave in Alaska: vertical and horizontal displacements, modelled and observed
      
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  load wave
Relationship between the electric signal in a conductor-dielectric-conductor system and the parameters of a plane load wave
      
Decay of the elastic precursor of a plane load wave and its relation to parameters of the equation of state
      
The tests were carried out at a 5 Hz frequency, with a sinusoidal load wave form and at a stress ratio of R=min/max=0.1.
      


This paper presents derivations of the equations which can be used to construct the stress-strain-strainorate relations of materials by strain profiles. On the basis of these equations,a method of assessment of the strain rate independent materials is proposed. The errors of the physical quantities, such as stress, particle velocity etc.,derived from strain are discussed. An example of application of this method is illustrated and it shows that at low pressure, the dynamic properties of the limestone can be...

This paper presents derivations of the equations which can be used to construct the stress-strain-strainorate relations of materials by strain profiles. On the basis of these equations,a method of assessment of the strain rate independent materials is proposed. The errors of the physical quantities, such as stress, particle velocity etc.,derived from strain are discussed. An example of application of this method is illustrated and it shows that at low pressure, the dynamic properties of the limestone can be approximated by linear hysteresis model . It is also shown that the ratio of the attenuation of peak stress not only depends on the properties of materials but also on the shape of the stress wave.

这篇文章导出了从应变波形计算材料的应力、应变和应变率关系的方程式。利用这些方程,本文建议了一个鉴别应变率无关材料的方法,指出了仅从测应变波形来得到其它物理量的基本步骤及算得的物理量可能具有的误差。作为应用的例子,我们得到了石灰岩在低压区的应力应变关系。 本上还指出,应力峰值的衰减指数不仅依赖于材料性质,也依赖于加载波形。因而不能用化爆来模拟核爆炸时的应力峰值衰减。

In order to investigate the propagating characteristics of stress waves and their energy

为考察不同形式的应力波通过夹层等岩体结构时的传输效应和能量传递效果,本文给出了一种求解应力波在层状矿岩结构中传播效应的新算法——等效波阻法。使用这种方法即可很容易地求算不同加载波形和不同矿岩结构条件下的透射效应和能量传递效果。

Using the technology of the electrical potential method to measure the crack lengths,we discuss the effect of load wave on the rate of long and short fatigue crack growth in axle steel.The results show that the propagation properties of fatigue crack in axle steel is fairly sensitive to the load wave.It is pointed out that in the case of the same driving force (△K) the propagatoin rate of a crack under the rectangular pulse load is faster than that under the sinusoidal wave load,especially in the short crack...

Using the technology of the electrical potential method to measure the crack lengths,we discuss the effect of load wave on the rate of long and short fatigue crack growth in axle steel.The results show that the propagation properties of fatigue crack in axle steel is fairly sensitive to the load wave.It is pointed out that in the case of the same driving force (△K) the propagatoin rate of a crack under the rectangular pulse load is faster than that under the sinusoidal wave load,especially in the short crack stage.And this is also demonstrated by the fractographic with SEM.

采用电位法裂纹测量技术与断口形貌分析相结合,讨论了加载波形对车轴钢长、短裂纹扩展速率的影响。结果表明,车轴钢对加载波形的变化具有一定的敏感性,在相同的驱动力(△K)作用下,矩形波加载的裂纹扩展速率普遍高于正弦波加载的裂纹扩展速率。从断口形貌SEM照片上也证实了这一点。

 
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