velocity strain

The forging processes of the both kinds of billets were simulated by contrast with FEM and the distributions of their velocity, strain and fibre flown line were gotten.

然后采用有限元方法，对圆柱形和锥台形两种坯料的成形过程进行对比模拟，进一步得到了它们在成形过程中速度场、应变场和金属纤维流线的分布规律。

Triangular Velocity Field Used to Solve Plane Strain Due to Draw-Out/ Extrusion by Idle Rolls

三角形速度场解析平面变形辊拔与辊挤

By means of analysis of the effects of deformation degree, stretching velocity, geometrical dimensions of the blank, lubrication methods and operation modes on slip band, the critical deformation degree and the reasonable scope of stretching strain rates are determined.

通过分析镜面蒙皮拉形中变形程度、拉形速度、毛料几何尺寸、润滑与操作方式对滑移带的影响，确定了临界变形程度和拉形应变速率的合理范围。

The results show that the strain velocity mainly affects maximum principal stress.

研究结果表明,应变速率等因素对最大主应力的变化有一定影响.

The kinematically admissible velocity field and strain rate field extension forging of rounds have been established.

建立了圆坯拔长锻造的运动许可速度场与应变速率场.

Under high-velocity tensile impact, high strength was measured because of high strain-rate.

高速拉伸撞击下应力速度大，组织中缺陷的作用减弱，强度明显高于单向拉伸状态。

This paper is based on result of visioplasticity test of thick cylinder during axial pressure with support of mandrel, velocity field and strain rate field were established.

本文根据厚壁圆管在两端夹持、有芯轴支撑、轴向加载的条件下，视塑性试验流线分布的结果，建立了变形区域的速度场和应变速率场。

Myocardial velocity and strain in systolic and diastolic period, myocardial strain in systolic and early diastolic period in LADA group were significantly lower in comparison with control group ( P 0.01).

LADA组收缩期和舒张期心肌峰值速度、应变率及收缩期、舒张早期心肌应变明显低于对照组（P＜0.01）。