The effect of each inherent strain component on the angular distortion of the lap joint is studied using inherent strain method.
运用固有应变法研究了六个固有应变分量分别对搭接接头焊接角变形的影响。
The method proposed by Gordo and Guedes Soares was empl oyed to generate the average stress-strain relationship of the compressive rect angular plates by means of the existing empirical formulae. The effect of weldin g residual stresses was discussed. Based on the investigation into the stress dis tribution in the plates during different stages of compression, an approximate me thod to generate the average stress-strain curve of compressive rectangular pla tes with residual stresses was developed by taking into account the condition of static equilibrium.
采用Gordo和Guedes Soares提出的利用经验公式的方法导出了受压矩形板的平均应力-平均应变关系，着重讨论了焊接残余应力的影响，在分析板受压时各阶段板内应力分布的基础上，根据静力平衡条件提出了一个生成计及残余应力影响的平均应力-平均应变曲线的近似方法。
We obtained tissue doppler image of the apical 4-chamber view and RV right ventricular outflow long-axis view, regions of interest were placed in the basal and mid-ventricular segments of the right ventricular free wall, interventricular septum, and posterior wall(becouse of unsharp image of RV anterior wall and the angular dependence of apex-ventricular segment, the segments mentioned above were excluded). Obtaining strain curve of 6 segments, we measured the peak longitudinal systolic strain and the time to peak strain(TQ-S, the time from onset of QRS complexes to Sa) of each segment, calculated the maximal difference of TQ-S(Max-ΔTQ-S, RV dyssynchrony parameter) and PST in all 6 segments. All parameters velue were averaged from 3 beats.
获取心尖四腔心和右室流入道长轴切面3个以上心动周期组织多普勒图像，在应变模式下，获得游离壁、后壁、室间隔处基底段、中间段(由于右室前壁组织速度图像不满意，心尖部心肌存在取样角度依赖性，上述室壁节段被排除在外)应变曲线，测量各节段室壁长轴收缩期应变峰值(peak systolic strain，PST)、应变达峰时间(TQ-S心电图QRS波起点至应变峰值时间)，计算6个节段间TQ-S的最大差值(Max-△TQ-S反映右室心肌整体不同步收缩参数)、并计算6个节段间PST的最大差值。
Friction moment is one of the critical indices reflecting the performance of bearings. A complete high-precision friction moment testing system for angular contact bearings is established in this research subject, making use of cantilever structure and high-precision strain gauge.
本课题针对角接触球轴承建立了一套完整的摩擦力矩测试系统，采用悬臂梁机构和高精度应变计进行测试，完成的主要研究工作包括：1。
Grain refinement and its correlation with strain for pure copper subjected to high pressure torsion; 2. With a view to the situation of ultra fine-grained material manufacturing home and abroad, some practical ultra fine-grained aluminum and aluminum alloy manufacture technologies are summarized in this paper, such as accumulative roll-bonding, high pressure torsion, and equal channel angular pressing.
结合目前国内外大塑性变形制备超细晶粒材料的现状，重点阐述了累积轧制、高压扭转和等通道挤压等具有实际生产意义的制取超细晶粒铝及铝合金材料的技术，分析了这些制备超细晶粒铝及铝合金材料技术细化晶粒的机制；展望了大塑性变形制取超细晶粒铝及铝合金材料的发展前景。
3-D Finite Element Analysis of Strain Distribution and Plastic Deformation Zone in Equal Channel Angular Extrusion of Cylinder Workpiece
圆形工件等通道转角挤压应变分布和塑性变形区的三维有限元分析
The rheological properties under dynamic test are associated with strain and angular frequency. 2.
动态测试下的流变性能既与应变也与角频率相关。
Fatigue life, surface deformation morphology, fatigue cracking and fatigue fractography of Al-0.7% Cu (mass fraction) alloy, produced by equal channel angular pressing (ECAP) for 4 passes, were investigated under constant stress or plastic strain control.
通过恒应力和恒塑性应变控制疲劳实验，比较了等通道转角挤压四道次的Al-0.7%Cu（质量分数）合金的疲劳寿命、表面变形形貌、疲劳开裂和疲劳断口。
In case that the driving constraint is released, it is shown that the plastic strain leads to the decrease of the amplitude of the angular velocity.
在驱动约束释放之后，塑性应变会影响系统的刚体运动，使角速度变化的幅度减小。
This may originate from shear strain induced by in-plane angular mismatch, which forces the film lattice to array in periods after post annealing. It may be responsible for the charge ordering behavior in films mentioned above.
这可能是由于面内角度失配造成了较大的剪切应变，在退火作用下，薄膜晶格形成了面内长程周期排列，这种周期排列可能就是上述薄膜中电荷有序行为的来源。
A method for analytical calculation of the resonance length for ultrasonic torsional fatigue samples is recommended. The angular displacement amplitude and torsional stress/strain amplitude on the surface of samples are derived.
介绍了一种超声疲劳扭转试样谐振长度解析计算方法，并给出了扭转谐振状态下试样表面的角位移和应力应变分布函数。
The equation was used for the calculation of the equivalent true strain for equal channel angular pressing, and the result is exactly the same as that obtained from directly analyzing the geometrical change of the specimen in the process, and corresponds to the experimental result.
将该公式应用于等径弯曲通道变形中真应变的计算，与直接分析试件的几何变形得出的计算公式完全相同，而且与实验测定的真实等效应变吻合很好。
The uniformity of the wheelset structure, process layout of wheel angular velocity, strain sensor, wheel and rail contact point position, the air humidity, has the outside temperature, electromagnetic interference and so on, will have an impact on measurement accuracy of wheel-rail force.
轮对构成的均匀性，轮对角速度，布置应变传感器的工艺，轮对与钢轨接触点的位置，以及外界的空气湿度，温度，电磁干扰等等，都会对轮轨作用力的测量精度产生影响。
The effect of billet size on the effective strain and unit extrusion pressure was investigated during equal channel angular pressing.
研究了坯料尺寸对等径角挤压材料等效应变及单位挤压力的影响。
Angular stiffness and elastomer shear strain on maximum swinging angle are important indexes in flexible joint design of solid rocket motor.
角刚度（又称弹性比力矩）及弹性件在最大摆角下的剪切应变是固体发动机柔性接头设计的重要指标。
The effect of tilt angles and angular displacement on many key parameters of fretting such as contact pressure, relative slip distance, dynamic curves, plastic accumulated strain and contact status is investigated in details.
分别研究了不同倾斜角与角位移幅值对接触应力、相对滑移量、动力学曲线、塑性应变和接触状态等微动摩擦学关键参数的影响规律，并结合实验数据，对模型的模拟结果进行验证。
The results show that the main cause of the angular distortion of the lap joint is the non-uniform distributed inherent shear strain component that is vertical to the weld line and exists in the plane paralleling to the weld line.
结果表明：搭接接头焊接角变形的产生主要是由焊缝及其附近区域与焊缝平行的平面内垂直于焊缝方向上不均匀分布的固有剪切应变分量引起的。