加载速率为每份钟不超过40次。
加载速率越大，声发射能量最大值也越大。
The acoustic emission energy signals become stronger with the increase of loading rate.
存在由加载速率变化引起的韧脆断裂转变。
And there exists a ductile to brittle fracture transition caused by loading rate.
但加载速率愈快，裂纹扩展实测平均速度愈高。
However, increasing loading rate will result in an increase of measured average crack velocity.
当加载速率增大时，蜂窝纸板的侧压强度随之增大。
As the loading velocity increases, the edgewise compressive strength of honeycomb paperboard increases accordingly.
断裂韧度数值在高加载速率下呈现出明显的离散性。
There was obvious scattering for the test results of dynamic fracture toughness under high loading rates.
试验范围内加载速率对果实的抗挤压能力影响不显著。
The loading rate in this experiment had no significant anti-extrusion capacity.
且强度变化主要是由于粘聚力随加载速率变化引起的。
The change of strength with loading rate is primarily due to the variation of cohesion with loading rate.
研究表明，水平向渗透系数和加载速率对复合地基固结有重要影响。
It is shown that the consolidation process of the composite ground is much more affected by both horizontal permeability coefficient and loading rate.
系统地探讨了有侧应力作用时，混凝土在不同加载速率下的劈拉强度规律。
The effect of loading rate on concrete splitting tensile strength for different lateral stresses is studied.
加载速率是影响裂解质量的重要因素，合理的加载速率可以提高材料的脆性。
Loading speed is a key factor affecting the fracture splitting quality, and proper loading speed can increase the brittleness of material.
加载速率是影响裂解质量的重要因素，合理的加载速率可以提高材料的脆性。
Effect of lower temperature and high loading rate on the fracture behaviors of weld metal was studied.
通过热激活分析，获得了断裂激活能以及与温度和加载速率相关的定量化关系。
There is a fracture transition caused by loading rate. Through thermal activation analysis, a quantitative relationship was found.
结果表明本文建立的方法简便易行，可用于高加载速率下裂纹扩展速度的测定。
The results show that the method is simple and convenient, and can be used for measuring the crack propagation speed at high loading rate.
采用不同的拉伸速率对复合材料加载，分析了加载速率对复合材料性能的影响。
Different tensile rates were adopted during the experiment, and the influence of loading rate on the mechanical properties of the composite material was analyzed thoroughly.
通过热激活分析，可以获得定量描述动态断裂韧性、温度及加载速率之间的关系。
A quantitative relationship between dynamic fracture toughness and temperature and loading rate has been obtained through thermal activation analysis.
系统地探讨了有侧应力作用时，混凝土在不同加载速率下的受压变形和强度特性。
The compressive deformation and strength of the concrete under different loading rates and lateral stresses are studied systematically in the paper.
在准静态及中低加载速率下，开展了饱和与干燥混凝土力学性能变化的试验研究。
The compressive properties of saturated and dry concretes including strength, elastic modulus and peak strain under different loading rates are studied by experiments.
通过室内试验，研究同一矿区煤在不同加载速率下的变形破裂过程的电荷感应规律。
The law of charge induction of coal in the same mine during the coal deformation and fracture process is studied under different loading rates in laboratory.
老式液压万能试验机，因不能对加载速率准确控制，已不符合国际标准对实验条件的规定。
Because hydraulic universal testing machine does not control speed of loading accurately, it does not with national criterion of testing condition.
结果显示，断裂韧度随加载速率降低和试验温度提高而增大，而切口深度对结果的影响不显著。
The results show that the fracture toughness of Kic increased with lower loading rate and higher test temperature and the incision depth has no significant impact on the test results.
在较高加载速率下，合金表现出类线性超弹性变形行为，可获得高达4.5%的类线性超弹性。
At higher strain rate, the alloy exhibits linear-like pseudoelasticity, which is up to 4.5%.
本文研究了加载速率对PVC拉仲、弯曲性能的影响规律及试验温度对PVC冲击强度的影响。
Effects of temperature on impact strength of PVC and the effects od load rate on mechanical properties under tension and bending load of PVC are Studied.
瞬时剪切行为存在加载速率、温度相关性；剪切蠕变曲线形状和蠕变寿命与温度及应力大小有关。
Shortterm shear behaviors depend on loading rate and test temperature while the shapes of the shear creep curve and the creep lives depend on test temperature and stress.
加载速率效应、蠕变以及应力松弛都是砂土材料本身黏性的反映，而与超孔隙水压力的消散无关。
Loading rate effect, creep and stress relaxation should be attributed to the viscous properties of the sand specimens, but not to the delayed dissipation of excess pore water pressure.
试验分恒定载荷和加载速率为定值两类情况进行，分析了试样在不同情况下的声发射监测试验结果。
The experiment is conducted in two cases, one with constant load and another with constant loading rate. Experiment results of acoustic emission monitoring of different cases are analyzed.
在岩石相似材料单轴压缩试验中，不同的材料配比和加载速率将直接影响到相似材料的变形与强度特性。
During the rock similar material uniaxial compressive test, the deformation and strengthen character were directly affected by different material proportion and loading rate.
利用柔度变化率方法确定起裂时间，分别得到在两种加载速率下CFRP、GFRP层板的动态断裂韧性。
With the compliance changing rate method, the crack initiation time and the dynamic fracture toughness of CFRP and GFRP laminates were obtained at two kinds of strain rates separately.
考虑分形特性，在相同加载速率条件下，所得分形维数越大，则分形裂纹速度也越大，这与理论推导是相符的；
This study also finds that under the same loading rates, increasing fractal dimension will result in an increase of fractal crack velocity which is in full agreement with the theoretical prediction.
考虑分形特性，在相同加载速率条件下，所得分形维数越大，则分形裂纹速度也越大，这与理论推导是相符的；
This study also finds that under the same loading rates, increasing fractal dimension will result in an increase of fractal crack velocity which is in full agreement with the theoretical prediction.
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