查询词典 surface creep

The results show that:there are obvious cyclic creep behaviour during constant stress amplitude low-cycle fatigue in 62Sn-36Pb-2Ag surface mount solder joints.

研究了表面封装焊在剪切应力作用下等温低周疲劳特征，得到疲劳寿命与循环应力幅的关系曲线。

The prior cycles with higher axial stress and larger strain range greatly restrains ratchetting strain of subsequent cycling with lower ones. Creep behavior plays an important role in the ratchetting strain and its influence on ratchetting behavior can not be neglected. Fracture morphology characteristics of two kinds of materials were investigated by scanning electron microscope. It shows that failure of material A is induced by cavitation and that of material B is induced by decohesion. For material A, with the decreasing strain amplitude the fracture surface shows more larger diameter globular particles under uniaxial loading and can be seen more obvious and deep crack under multiaxial loading. However for material B, with the decreasing strain amplitude fracture surface shows larger and larger scalelike shape and becomes more smooth under uniaxial loading, but fracture surface under multiaxial loading looks like more smooth than that of uniaxial loading, and shows gradually wave-like morphology.

通过扫描电子显微镜研究表明：材料A为空穴引起的失效，材料B为剥离导致疲劳破坏；随着载荷幅值的减小，材料A在单轴载荷下，断口表面浮出更多更大直径的球状颗粒，而多轴载荷下，可以看到很深的裂纹；随着载荷幅值的减小，材料B在单轴载荷下，断口表面鱼鳞片越来越大，表面越来越平整，而多轴载荷与单轴载荷相比，断口表面看上去更加平整，并且随着载荷幅值的减小，断口逐渐呈现波浪形貌；通过微观的傅立叶变换红外光谱分析，结果表明随着应变幅值的增加，无论载荷是单轴还是多轴状态下，橡胶材料吸光度比值随着幅值的增加而增加，这说明体系中的结晶含量也随之增加。

The distribution of temperature stress was calculated by finite element analysis. The results showed when the surface temperature of concrete was higher than 110℃, the temperature stress was more than 4 MPa without regard to the creep. This might be lead to the damage of the surface of concrete. At the same time, a lot of microstructure analysiss such as XRD, SEM, IR, HSA etc. were done to analysis the difference of the component and microstructre of concrete before and after corrosion. The results indicated that the decomposion of CSH gel and calcium hydroxide and the creation of dilatability calcium oxide were the internal reason of the deterioration of concrete in the corrosion form of high heat.

该文通过有限元方法计算了由于温度而产生的结构应力分布，计算结果表明当混凝土表面温度超过110℃时，如不考虑徐变时表层混凝土受到的温度应力将超过4MPa，这使得表层混凝土很容易因温度应力而破坏；同时通过X射线衍射分析、扫描电子显微分析和混凝土孔结构分析等多种微观结构测试手段，分析了混凝土受热前后的宏观性能以及微观组成和结构的变化，指出混凝土原水化产物如水化硅酸钙凝胶和氢氧化钙的分解以及膨胀性产物氧化钙的产生是高热腐蚀形式下混凝土破坏的内在原因。

The differences between surface creep and saltation are gradual and it is difficult to draw a fixed dividing line.

表面爬行和跳跃之间的差别是渐变的，它很难划一条固定分界线。

Results The creep characteristics, the isochrounous stress-strain characteristics and an empirical formula from creep curve of mica-quartzose schist have been obtained under the condition of the axial stress vertical to the direction of the schistosity surface.

结果 得到了当轴向力垂直于片理方向加载时，云母石英片岩的蠕变特性、等时应力应变特性和蠕变经验公式为σ1-σ3=178e(上标-0.0013t)ε1(上标 1.22e-0.0005t)和σ1-σ3=58.70e(上标-0.0071t)ε1(上标 1.67e-0.0068t)。

When a particle is dislodged from the surface it moves downstream by suspension , surface creep , or saltation

表面爬行和跳跃之间的差别是渐变的，它很难划一条固定分界线。

When a particle is dislodged from the surface it moves downstream by suspension, surface creep, or saltation

颗粒脱离表面后，以悬浮，爬行或跳跃形式向下游运移。

Firstly, triaxial compression creep tests with mica-quartzose schist which is a kind of soft metamorphic rock with lots of schistosity surfaces were carried out on the rock servo-controlling rheology testing machine under the condition of the axial stress vertical to the direction of the schistosity surface.

首先，对片理发育的软弱变质岩—云母石英片岩，在轴向力与片理垂直的条件下，采用岩石全自动流变伺服仪进行了三轴压缩蠕变试验，对轴向蠕变和径向蠕变进行了对比分析，提出径向蠕变比轴向蠕变敏感，以径向蠕变长期强度作为长期强度更合理。

After hears the yellow Jinlong commander in chief's order, already succeeded the hook to live this planetoid the starships, after passed through the very short time, had achieved with the planetoid the similar speed, likely the human rode in the acceleration the airship to be same, starts the anchor chain which back and forth vibrated this time already to pull taut, and started to maintain stably, all starship pilot, already not in the worry planetoid surface more than 1200 degrees high temperatures, the thick fog group which as well as raided intermittently, after received the order then the rapid start automatic hinge machine, to this planetoid superficial fast advancement, in order to set aside the enough debarkation space for the second interspace group,This time by far looks, the entire starry sky scene, looks like a big spider to lead only to creep along innumerably small spider such, has filled the mysterious visual effect, lets the human feel incomparably shocks!

在听到黄金龙总指挥官的命令后，已经成功钩住这颗小行星的星际飞行器们，在经过很短的时间后，就与小行星达到了同样的速度，就像人乘坐加速中的飞船一样，开始来回抖动的锚链此时已经绷紧，并开始保持稳定，所有星际飞行器的驾驶员，已经不在顾虑小行星表面1200多度的高温，以及阵阵袭来的浓雾团，接到命令后便迅速启动自动铰链机，向这颗小行星的表面快速推进，以便给第二星际小组腾出足够的登陆空间来，此时远远望去，整个星空场面，就像一只大蜘蛛带领着无数只正在爬动中的小蜘蛛那样，充满了神奇的视觉效果，让人感到无比震撼！

The products has high-precision horizontal spindle surface grinders with rectangular table, high-precision horizontal spindle surface grindes with rotary table, vertical spindle surface grinders with rotary table, CNC corrugated roller profile grinder, CNC creep-feed profile grinders and floor-type guideway grinder etc.

公司的产品有高精度卧轴矩台平面磨床、高精度卧轴圆台平面磨床、立轴圆台平面磨床、数控瓦楞辊成形磨床、数控圆弧剪刃成形磨床、数控强力成形磨床和导轨磨床等80多个品种规格的技术储备，其中有填补国内空白的产品和荣获国家银奖的产品。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。