应变

Analyzing and simulating of the deformation law of the ceramic downspout product after overcoming the shortage of powder material models in the software of MSC. MARC. It shows out the important effects of various factors and the shape of mandril during the process. And it is obvious that the shape of the top mandril has more effects on the process than the bottom.(3) Showing out the important effects of model figure on the flowing of powder and the forming of low-density fields from the analysis. After changing the top of the mandril into spherical shape, an improving model is putting out so that the distribution of stress and strain turns to be even and proper and that the flow rule of powder grains is better.(4) Calculating of the dimensional precision and the cutting ratio of the product and analyzing of the effects of such factors as rubber aging, loading process, mandril, friction etc. on the cutting ratio.

MARC存在的粉末材料模型方面的设计缺陷后，对连铸水口粉末成形件的变形规律及影响因素作用进行了模拟分析，指出芯棒形状对成形件的变形有较大影响，并且芯棒顶部形状与芯棒底部形状相比，对粉末变形有更大影响；(3)分析了成形件出现低密度区域的原因，指出模具形状对粉末流动以及粉末成形件低密度区域的形成有重要作用，提出了密度分布优化改进模型：改进模具顶部形状，并将芯棒顶部设计成球面后，粉末成形件顶部区域的应力、应变分布更加均匀、合理，粉体颗粒流动情况明显改善，低密度区域明显缩小；(4)计算了成形件的尺寸精度及切削率，并指出除模具形状的影响外，充填密度、橡胶模具老化、加载工艺等其他因素对总体切削率也有相当的影响。

By the dynamic strain response test and its wavelet analysis of the driving axle housing models with and without prefabricated cracks respectively, the feasibility of the crack detection method which is based on the wavelet multiresolution analysis and the modern spectrum estimation is demonstrated.

通过对微型汽车驱动桥壳有、无预制裂纹模型试样在瞬态激励下的动态应变响应试验和小波分析，论证了采用小波多分辨分析和现代谱估计技术，通过对小波分解所得到的各尺度下细节信号的频谱分析，检测结构裂纹故障的可行性。

An American maker supplies a rod of " twisted bam boo " which he claims equalizes the strain and pro duces better action.

一位美国一杆用品制造者"扭倒巴姆"声称均衡的应变和比特率分配好行动。

The strength of 6066 aluminum alloy was increased and the ductility was decreased with the increase of strain rate.

研究结果表明：随着应变速率的提高，6066铝合金强度升高，塑性下降，断口从韧性向脆性转变。

Using this method proposed in this thesis, superplastic free bulging process of duralumin LY12CZ under an external electric field is analysed, both with the constant pressure and with the constant strain rate at the apex.

将此解析—数值混合分析法应用于LY12CZ铝合金在强电场中的超塑性自由胀形过程的数值模拟，其中包括恒定胀形压力和恒定应变速率两种情况。

The effect of strain rate upon dynamic dent resistance is analyzed.

分析了应变速率对动态局部凹痕抗力的影响。

Based on the nonlinear response of stress and strain of rock,the physical mechanism of loading and unloading response ratio of groundwater level to earth tide is analysed and the corresponding method is studied.

应用加卸载响应比的理论和方法，根据从岩石的应变与应力的非线性响应，分析了井水位固体潮加卸载响应比的机理，并研究出利用地下水位对固体潮响应来计算加卸载响应比的方法。

Many research works have been done on the moving characteristics of ground-fluid controlled by structural stress in China and abroad , but the research on microseepage of microcrack caused by Earth tide is complete blank .

目前国内外对构造应力作用下地球内部流体运动的规律与特征的研究已经很多，但面向地应变固体潮对地壳微裂缝系统的微渗漏作用影响的研究尚属空白。

The evolution of strain energy with the aspect ratio (length/width) of the epitaxial structures was found to be affected by the height, the elastic constant of the substrates and the epilayers, and the symmetry of the lattice mismatch of these structures.

我们发现磊晶结构应变能随长宽比变化的方式将受到结构的高度、磊晶薄膜和基板的弹性系数、及晶格的对称性所影响。

However, the elastic deformation behavior of nanotubes is not affected by the strain rate.

然而，应变率对纳米管的弹性变形没有影响。

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。