压应力

词组短语

compressive stress

与压应力相关的网络例句 [注：此内容来源于网络，仅供参考]

In Late Jurassic period (159-135Ma), when the orientation of maximum principal compressive stress was NW direction, the Wuzhangshan granite intruded to upward, accompanied the formation of NW trending Sanrenchang and Huangshuian breccia pipe belts; In the Early Cretaceous period (135-120Ma), when the orientation of maximum principal compressive stress was NNW trending, the second stage of Huashan granite intruded to upward, accompanied the formation of NW trending Qiyugou breccia pipe belts; In 120-105 Ma, when the orientation of maximum principal compressive stress changed to NE direction, the gold-bearing quartz veins and gold orebodies in breccia pipes were formed along the NE trending fractures; In the Middle Cretaceous period (105-85 Ma), when the orientation of maximum principal compressive stress was NEE, the NEE trending Leimengou granite porphyry intruded to upward, accompanied the formation of NEE trending Leimengou breccia pipe belts.

在晚侏罗世(159～135Ma)，构造应力场最大压应力方向为NW向，形成了NW走向的五丈山岩体以及NW向展布三人场、黄水庵两个角砾岩带；在白垩纪早期(135～120Ma)，最大压应力为NNW向，形成了花山岩体第二期上侵，并伴有NW向的祁雨沟角砾岩带；其后(120～100Ma)，构造应力场最大压应力方向变为NE向，形成了NE向含金石英脉及角砾岩体中金矿体；最后(100～80Ma)，形成了雷门沟花岗斑岩以及NEE向展布的雷门沟-杨河沟角砾岩带(区域构造应力场的最大主压应力方向为NEE向)。

The pattern of camber die-drawing are optimized. The physical innate character of drawing with camber die is analyzed thoroughly. For the first time, the periodical relation between the limit drawing coefficient and the large longitudinal stress in dangerous section is established. Furthermore, the rationale to judge limit deforming degree is developed. Then, the limit drawing coefficient of drawing with camber die is proposed. Based on the criterion that the large stress in flange is smaller than that of limit value, the formula of drawing with camber die without wrinkles is deduced.

对拉深凹模的型式进行了优化；深入地分析了曲面凹模拉深成形的物理本质，首次定量地确定了极限拉深系数与危险断面最大径向应力的关系，提出了判断极限变形程度的依据，分析了极限承载能力，建立了曲面凹模拉深的极限拉深系数的表达式；以凸缘切向最大压应力小于凸缘切向压应力临界值为准则，推导出了曲面凹模拉深不起皱的理论表达式。

Using elastic multilayer theory , the compressive stress and tensile stress of the subbase course by vibrating compaction are calculated and analyzed.

将振动压路机对被压实层施加的作用力简化为圆形均布荷载，利用弹性层状体系理论，对基层振动压实作用下的底基层压应力和拉应力进行了计算分析。

Positive tensile stress on iron undersurface relaxes to the inner of iron and negative tensile stress on iron undersurface concentrates on the side of iron as the temperature declining, so cracks easily appear at the site where positive and negative tensile stress cross.

在冷却过程中，铸铁下表面的拉应力逐渐向铸铁内部释放；同时，压应力逐渐向铸铁的两侧端面集中。因此在拉应力和压应力的交界处，容易产生裂纹。

The results show that the concentration of displacement and stress in surrounding rock intensifies with the increase of excavation steps. The maximum compression and tension stress reach 54 MPa and 3.9 MPa, which are close to the peak strength of surrounding rock. When the tailings are backfilled, the magnitude of floor heaves reduces about by 5 mm, and the maximum compressive stress drops to 32 MPa. Distribution of both stress and displacement fields are improved and the stability of stopes can be ensured during the mining process.

研究结果表明：随着开挖逐步推进，围岩位移不断增大，应力集中现象明显，最大压应力达54 MPa，最大拉应力达3.9 MPa，接近围岩的极限强度；在尾砂回填后，底鼓量下降5 mm，最大压应力降至32 MPa，表明应力场和位移场均得到改善，能确保回采期间采场的稳定。

Results: Before the fixed bridge was applied, under vertical load, the high-stress region was near around the apical of periodontal ligament with mainly compressive stresses. Under oblique load, the high-stress region was near around the cervical of periodontal ligament with both tensile and compressive stresses. After the fixed prosthodontics, stress and strain distributions were similar with that when the fixed bridge was not applied. But the maximum stress, strain and displacement increased apparently. The stresses in exterior surface of periodontal ligament were larger than that of interior surface; this character of periodontal ligament under vertical load was more obvious than that under oblique load.

结果：固定桥修复前，垂直载荷下，基牙牙周膜的应力以压应力为主，应力集中在根尖；斜向载荷下，基牙牙周膜的应力主要是拉应力和压应力，应力集中在唇、舌颈缘；固定桥修复后，基牙牙周膜的应力和应变分布规律与修复前相似，但最大应力、应变值都明显增大；牙周膜内表面的应力大于牙周膜外表面；垂直载荷时，牙周膜内、外表面的应力差异更为显著。

Ultra-high strength 23Co 14Ni 12Cr3MoE steel was shot peened and the surface residual stress of shot-peened specimens was determined during rotating bending fatigue by X-ray diffraction method.The surface residual stress decreases greatly in the first 10 cycles and it is steady alter 100 cycles.

工件表面的残余应力，对其疲劳性能具有重要的影响，喷丸强化工艺主要利用的就是在表层产生一定数值大小的残余压应力以提高疲劳抗力，但喷丸残余压应力在疲劳过程中并不是稳定的，在一定外力或/和温度的单独或共同作用下，残余应力可发生松弛['一5]。

According to the stress-strain curve equation of concrete compression, we simplified the rectangle stress graph of the stress on the area of its bending cross-section in this paper. A general formula for the height of equivalent compression stress block and the stress strength formula were deducted.

根据混凝土受压应力－应变关系的常用曲线方程，对受弯截面压区混凝土应力进行了矩形应力简化，推导得到了等效矩形应力图形高度及应力强度的一般公式。

The effect of the friction between rolls and ring can be ignored and the effect of the spread velocity of rolling on the deformation of ring is illustrated.

通过模拟分析比较，揭示出了环件轧制过程中的金属流动规律：轧制时，环件外侧的变形最大，厚向中心部位变形最小，内侧的变形程度介于中间；环件内外环面的压应力分布和变化规律：在垂直于环件轴线的对称面上，压应力分布近似对称状态，而且在对称面上的应力最大，往端面方向开始减小；指出了环件轧制中轧辊与环件摩擦对环件成形的影响：对于环件的宽展变形，摩擦的影响很小，可以忽略；分析了环件进给速度对环件成形的影响并阐述了环件厚向中心部位凹陷产生的原因，提出防止凹陷的措施：在轧制时，尽量使用快的进给速度有利于防止端面凹陷的产生；研究了导向辊位置对环件成形以及轧辊受力的影响：导向辊的位置对环件的宽展变形影响很小，但对轧辊的受力影响较大，当导向辊的中心位置位于毛坯初始中心位置之上时，驱动辊和芯辊的受力相对较小，这是导向辊导向时优先考虑的位置。

The results showed that the surface layer and the bottom layer of the road pavement experience the repeated horizontal tensile and compressive stresses under cyclic loading and small residual tensile and compressive stresses build up in the surface layer and bottom layer respectively. This is probably one of the factors causing top-down or bottom-up fatigue cracking in the asphalt pavement.

结果表明在循环荷载作用下，路表和沥青层底都经受水平压应力和拉应力的重复作用，且在路表和沥青层底分别产生少量的残余拉应力和残余压应力，这有可能是造成沥青路面从上到下或从下到上疲劳开裂的原因之一。

与压应力相关的网络解释 [注：此内容来源于网络，仅供参考]

compressive stress：压应力

当电荷产生时,即形成电场与电压,在受到拉应力(Tensile Stress)与压应力(Compressive Stress)时,其电场与电压的方向恰好相反. 此一现象亦是可逆的,亦即当压电材料受到不同极性的电场时,将会导致其长度的增减. 所以压电效应可包括正电效应及逆电效应.

compressive stress：抗压应力

抗压强度 compressive strength | 抗压应力 compressive stress | 抗噪音 noise abatement

concentration of stress：应力集中

压应力 compression stress | 应力集中 concentration of stress | 预应力 prestressing force, prestress

confining stress：受限应力,围压应力

围压,受限压力 confining pressure | 受限应力,围压应力 confining stress | 汇流点 confluence of rivers

flexibility stress：柔性应力

位移应力 displacement stress | 柔性应力 flexibility stress | 内压应力 internal pressure stress

normal stress：正向应力

在基桩承受压应力时,於FLAC3D中取桩底与岩石间介面元素之正向应力(normal stress)与桩底面积之乘积为点承载力,并且记录桩底元素之位移,以压力桩为例,其q-z 曲线如图二十二所示.

tensile stress：拉应力

当电荷产生时,即形成电场与电压,在受到拉应力(Tensile Stress)与压应力(Compressive Stress)时,其电场与电压的方向恰好相反. 此一现象亦是可逆的,亦即当压电材料受到不同极性的电场时,将会导致其长度的增减. 所以压电效应可包括正电效应及逆电效应.

com pressive stress：压应力

压缩机 com pressor | 压应力 com pressive stress | 压力角 press ure angle

stressing：加力、加载、应力

stress in compression压缩应力、压应力 | stressing加力、加载、应力 | stress in tension拉伸应力、拉应力

stressing：施加应力;受力

yield stress 屈服应力 | zero heel stress 坝踵零压应力 | stressing 施加应力;受力