试验结果表明：加载应变路径的变化会影响成形极限曲线的高低。
It is shown that the change of loading strain path will affect the forming limit curve.
在数值模拟中应用最小厚度作为成形极限判据，研究最小厚度值与应变路径的关系。
In numerical simulation minimum thickness was taken as forming limit criterion. The research on the relation between minimum thickness and strain paths was carried out.
单拉预应变路径将显著提高正应变比区的成形极限，而对负应变比区的成形极限影响不大。
Uniaxial prestrain will obviously improve the forming limit on positive strain ratio zone, while it has little effect on negative strain ratio zone.
应变路径理论与传统的增量理论不同之处在于其偏应力增量和偏应变增量之间为一非线性关系。
The strain path theory is different from the plastic flow theory since it gives a nonlinear relation between stress deviation increment and strain deviation increment.
而以极限应力构成的成形极限应力图FLSD由于不依赖加载应变路径，已成为目前研究的热点。
While FLSD, which is stress-based and independent of strain path, has become the hotspot in this field.
因极限应变构成的FLD受应变路径的影响很大，在研究复杂应变路径的成形极限问题时带来极大不便。
Strain-based FLD is strongly affected by the strain path and has brought much inconvenience to the study of forming limit under complex strain paths.
研究结果表明：有限元数值模拟可以实现复杂应变路径； 应变路径的不同对冲压成形的结果有很大影响。
The results indicate that FEM can realize the complex strain paths and different strain paths will affect the result of sheet metal forming greatly.
结果表明，成形极限应力图不受应变路径影响，对于同一失稳准则，在不同加载应变路径下几乎为同一条曲线。
The result shows that FLSD is independent of strain path, and that the FLSD under different strain paths are almost the same curve according to the same instability theory.
本文通过实例验证了FLSD在判断复杂应变路径下的多道次零件成形比基于应变的成形极限图更加可靠、有效。
The thesis validates through actual experiments that FLSD is much more reliable and effective than the strain-based FLD in determining the multistage part formability under complex strain paths.
研究表明不同可控拉深筋路径对盒形件侧壁和凹模圆角部位的应变路径影响不大，而对凸模圆角处的影响较为显著。
The results show that the different CD moving paths have little effect on the strain paths of box sidewall and die corner, which have significant effect on punch corner.
平面应变条件下土体中主应力之间的关系，其实质是特定应变路径条件下土的应力–应变关系，为土的一个重要力学特性。
The relationship between principal stresses in the plane strain state is the stress-strain relationship of soil with a certain strain path.
结果表明，对于同一失稳准则，在不同加载应变路径下FLSD几乎为同一条曲线，FLSD作为复杂加载路径板料成形极限判据更加方便。
The result shows that the FLSD under different strain paths are almost the same curve according to the same instability theory and it's more convenient to use FLSD as the criterion of forming limit.
头部载有记录火箭飞行路径和其他资料的摄录机和电子设备；尾部有温度和应变传感器。
The nosecone carried a video camera and avionics to record the rocket’s flight path and other information; the aft end, temperature and strain sensors.
增强指导在向你指出路径方面是很好的，但是如果你不确定如何开始使用随需应变技术呢？
The enablement guides are great at showing you a path, but what if you're not sure how to get started with On Demand technologies?
这就从试验上判明，即使在相同的应力状态下，应变速率敏感性指数也与变形路径密切相关。
These prove that the strain-rate sensitivity index depends tightly on the deformation route from experiment, even on the condition that those stress-state are similar.
并且给出用与切线模量相关的标准确定加工硬化型应力——应变关系曲线的破坏点的方法，提供了利用任意固结度下的应力路径求解不排水抗剪强度的计算式。
The method to ascertain the damage point of process harden type stress-strain curve was shown, and the calculate expression of shear strength used by stress path under random consolidation degree.
讨论了J积分的路径无关性和裂尖应力，应变奇异性。
A path independent of the J-integral and the stress, strain on the crack tip are discussed.
对非饱和砾质土心墙料做一组等应力比和等应力增量比为常数的试验，发现邓肯-张模型基本能反映该应力路径下的应力应变关系。
Analyzing the test results, the Duncan-Chang model can basically reflect the coarse grained soil's stress-strain relationship under the stress path of dam.
介绍了不同应力-温度路径下q 235钢材性能的试验，以研究应力-温度历史对钢材应变的影响。
Experiments on the material properties of Q235 steel under different stress-temperature paths were conducted to learn the influence of stress-temperature history on the steel strain.
在伺服试验机上对岩样进行了多种路径的加载、卸载试验，分析岩样轴向应变、环向变形与轴向应力、围压之间的关系。
Various loading and unloading paths are carried in servo-controlled testing machine to study the relationships among axial stress, strain, confining pressure and circumference deformation.
同时由应力路径旋转对模量的影响也随着剪切应变的增加而逐渐衰减。
At the same time, the effect of stress path circumgyration on shear modulus decreases gradually along with the increase of shear strain.
研究结果表明，低周拉扭疲劳加载下，拉与扭应力响应的硬化与软化特性取决于应变加载路径和加载参数。
The results showed that the characteristics of cyclic hardening or softening depend to the strain loading paths and the loading parameters.
但应力路径、应变范围不同其衰减幅度不同。
Finally, different stress paths and strain areas would lead to different attenuation trends.
提出考虑土的应变软化、剪胀（剪缩）性和应力路径影响的非线性弹性模型。
Suggest the nonlinear elastic Constilutive model taking into the account of strain-softening, shear dilatancy(shrinkage)properties and stress path.
本文在分析试验获得的不同恒定温度下砼应力—应变曲线的基础上，通过假定，提出了映射温度流动路径，给出了具体的计算公式，并进行了试验验证。
From the analysis of the test results, the method of determining temperature increment path, shining temperature flowing path, is presented and relative formulas are given.
当沿着等应变增量比路径加载时，应力比最终趋于一个常数，即渐近状态的应力比；
When the sand is loaded along the constant strain increment ratio paths, the ratio of lateral to axial stress will eventually approach a constant value, i. e. the asymptotic stress ratio.
有限元解析中所采用的砂土本构模型以修正塑性应变能量为硬软化基本参量，它可以较为精确地模拟砂土的应力路径效果。
The constitutive model is developed to have a stress path-independent work-hardening parameter based on the modified plastic strain energy concept.
根据前面的研究，在第六章提出了复杂动态环境下高技术企业战略应变能力的提升路径。
Based on the research work and theory discussed in previous chapters, some Suggestions are put forward to improve the strategic countermeasure ability in complex and dynamic environment.
和往常一样，美联储的政策并不是预定好的，如果经济预期发生转变，适当的政策路径将会相应变化。
As always, our policy is not on a preset course and if the economic outlook shifts, the appropriate path of policy will shift correspondingly.
和往常一样，美联储的政策并不是预定好的，如果经济预期发生转变，适当的政策路径将会相应变化。
As always, our policy is not on a preset course and if the economic outlook shifts, the appropriate path of policy will shift correspondingly.
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