应变

There is a good linear relation among the height of semi-circle Drawbead, the thickness reduction and the equivalent strain of the sheet, The letter two will be risen along with the height of semi-circle drawbead.

筋高与板料的减薄量和累积等效应变之间存在良好的线性关系，随着筋高的增大二者也增大；并且拉深筋的各圆角半径的增大都使减薄量和累积等效应变减小。

The flow behavior of 5182 aluminum alloy for automotive body sheet at the strain rate ranging from 0.001 to 0.1 /s and temperature ranging from 323 to 573 K was studied on Instron8032 tensile tester. A constitutive equation using up-dated Fields-Backofen equation was established to describe the flow behavior of 5182 aluminum alloy during warm tensile.

摘 要：在变形温度为323~573 K、应变速率为0.001~ 0.1 /s条件下，采用Instron8032电子拉伸实验机对汽车用5182铝合金板的流变行为进行研究，采用修正后的Fields- Backofen方程描述5182铝合金温拉伸时的流变行为，建立5182铝合金在温拉伸时的应力－应变本构模型。

The strain of sheet mainly occurs in loading end in the initial load. With the increase of load, the strain extends to the remote end; the bond stress gradually reduces from the loading end to the remote end; the peak bond stress locates slightly away from the loading end. For 16.3% moisture content, the effective bond length between BFRP and wood is 100 mm.

结果表明，加载初期，纤维布上的应变主要存在于加载端附近，当荷载逐渐增加时，应变也向加载远端增大；随着与加载点距离的增加，粘结应力逐渐降低；随着荷载的增加，粘结应力峰值位置向远离加载点方向稍有移动；在含水率为16.3%条件下，BFRP与木材的有效粘结长度为100mm。

Normal or linear strain is defined as the change in length per unit length.

正改应变或线应变由每单位长度内的长度改变量来定义。

The results show that the peak stress and peak strain of cast-rolling and normal rolling AZ31 magnesium alloys both increase with decreasing the deformation temperature and increasing the strain rate.

结果表明：两种AZ31镁合金板的峰值应力和峰值应变均随着变形温度的降低和应变速率的增加而逐渐增大。

The normal strain resolution and shear strain resolution of the system is 50-100με and 50-110με respectively (The subset size is 51× 51pixels).

其位移的灵敏度可达到0.01Pixels以下，全场正应变和剪应变的灵敏度分别为50-100με和50-110με（子区为51×51Pixels）。

Based on the critical approach, a model for multiaxial fatigue life prediction was established by combining maximum shear strain and normal strain on the critical plane, and the effect of stress state under the multiaxial cyclic loading condition on the fatigue life was taken into account.

通过对薄壁圆管和缺口试样的高温多轴疲劳寿命特性分析，基于临界面方法提出了一个的多轴疲劳寿命预测模型，在考虑临界面上最大剪应变和正应变对多轴疲劳损伤贡献的同时，还引入了应力状态对多轴疲劳寿命的影响因素。

The boundary condition that the surface of the crust is kept at a constant temperature of 25℃, leads to relatively less obvious variation of temperature in the underground no deeper than 2 kilometers, so that the calculated strain rate is less than 10〓(normal geological strain rate is 10〓～10〓).

由于地表的边界效应，在深度小于2km的地壳里，温度变化相对不急剧，一般不出现大于10〓应变速率(典型的地质应变速率为10〓～10〓)。

Non-extension and equal shortening plane: The plane that cut through the center of the strain ellipsoid is normally elliptical but there are two tangential, global and strain ellipsoid circular sections.

无伸缩面与等伸缩面：切过应变椭圆球体中心的面一般为椭圆形状，但其中有两个切面的球形的，较应变椭球的圆截面。

We obtain the "misfit strain-misfit strain" phase diagram and energy diagram for BST thin film grown on tetragonal base at room temperature.

得到了室温下生长在四方基底上的BST50/50薄膜的&失配应变—失配应变&相图和能量图。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。