体外预应力筋的应变增量与结构整体变形的关系。
The relationship between the strain increment of external prestressed tendons and the whole structural deformation.
标定试验结果表明,测点应变增量与残余应力间存在良好的线性关系。
The experiment results show that the measured additional strain keep a linear relationship with residual stress in the structure.
用有限元法进行钢筋混凝土结构徐变分析时,必须应用徐变应变增量方程。
Stochastic finite element method for random thermal creep stress in massive concrete structures is presented.
研制开发的试验设备可用于研究砂土在等应变增量比加载条件下的应力应变响应。
The device can be applied in the investigation of stress-strain behavior of sand loaded along constant strain increment ratio paths.
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.
从理论上说明塑性应变增量的方向不仅与应力的主方向有关,还与应力增量的方向有关。
The theoretical result shows that the direction of plastic strain increment is determined by the direction of principal stress and stress increment.
当材料的应力应变关系为弱硬化型时,应力比与应变增量比关系为两段斜率不同的直线;
When the stree strain relationship is the weak hardening, the relationship between stress ratio and strain incremental ratio shows the straight line with two different slopes.
通过在屈服面的切线方向增加一项非共轴塑性应变增量,即可实现对非共轴现象的反映。
In order to reflect the non-coaxial phenomenon, a non-coaxial plastic strain rate term is added to the tangential direction of conventional constitutive model's yield surface.
结果表明,在扩展强度发挥面上,这几种材料的应力比与应变增量比之间仍具有线性关系。
The results indicate that the relationship between stress ratio and strain incremental ratio in these materials is still a linear relation on the extended moblized plane.
在剪胀条件下,分析了剪切带内部的局部体积应变增量及由于剪胀而引起的剪切带的法向变形。
For dilative material in shear, the increment of local volumetric strain in shear band and the normal deformation of shear band due to shear dilatancy were derived.
基于材料的各向同性理论,根据应力—应变增量关系,建立了一个混凝土的三维本构关系模型。
The 3d constitutive relationship of concrete model is based on the isotropic approach of material with stress strain increment relationship.
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.
当扩容角较高时,应力峰值时试样内部的最大剪切应变增量较高,因而试样破坏的前兆比较明显。
Higher DA leads to higher value of maximum shear strain increment within the specimen. Therefore, more apparent precursor to failure can be observed at higher DA.
塑性应变增量方向与应力路径没有很大关系,以等塑性体应变为硬化参数的屈服面形状也是椭园。
The direction of plastic strain increment is nearly independent of the stress path. The shape of yield sur- face on hardening e…
塑性应变增量方向与应力路径没有很大关系,以等塑性体应变为硬化参数的屈服面形状也是椭园。
The direction of plastic strain increment is nearly independent of the stress path. The shape of yield sur - face on...
渐近状态是比临界状态更为广泛的一个概念,临界状态是渐近状态在体应变增量为零时的特殊情况。
And asymptotic state is a more common concept than critical state, which is a particular case when volumetric strain increment equals zero.
若规定简单拉伸时两种屈服条件重合,则两者的等效塑性应变增量的相对偏差为15 .5 % ;
Their relative deviation of the equivalent plasticity strain increments was 15.5%, assuming that the two conditions coincide under simple tension;
此外,还对FLAC - 3d内嵌的本构模型深入研究,塑性流动发生时塑性应变增量对应力增量的修正。
In addition, the constitutive models included in FLAC-3D are deep into research, and the stress increments are corrected in terms of the plastic strain increment while occurrence of plasticity flow.
利用常规有限元法确定增量位侈,然后再根据余虚功原理求得后屈曲复合材料受剪板的应力增量和应变增量。
The rigidity of the equivalent shear panel is equal to the incremental rigidity of the post-buckled composite shear panel, while the latter is determined by th…
它与夸脱理论相结合,得到了在角点处的塑性增量应力应变关系,在角点上剪应力增量与剪应变增量间是单值确定的。
Then the increment stress - strain relation of plasticity on the corner of the yielding surface is presented by the Koiter theory which is connected with the above hardening function.
研究砂土在沿着应变增量比(侧向应变增量与轴向应变增量的比值)为常数的路径加载时的力学响应具有十分重要的意义。
It is of vital importance to study the mechanical response of sand in strain-path controlled tests during which the ratio of lateral to axial strain increments is kept constant.
目前通过应变增量计算残余应力的方法仍然是通过事先试验标定,测量超强或低强匹配焊缝中的残余应力时采用的仍然是母材的标定系数,因而会带来严重误差。
The great error could be produced in measuring the residual stress in a weld with the use of calibration coefficient for the base metal instead of the weld metal.
这个阶段有时作为一个随需应变的特性来实现,被嵌入到收集器的结构(例如半空间收集器)中,或以一种增量的形式来实现。
This phase is sometimes implemented as an on-demand feature, embedded into collector's fabric (semispace collectors being an example), or in an incremental fashion.
采用塑性增量理论,建立了波纹管液压胀形的应力、应变数值计算方法,解决了波纹管液压胀形工艺的理论计算问题。
By plasticity increment theory, the stress strain numerical calculate methods of bellows bulge forming, solvers theory calculating problems of bellows bulge forming technology are put forward.
指出了其基本的问题是其中应力(应变)或者其增量是否为一有势场的梯度矢量。
The keystone is whether or not there is unique potential field in which the stresses (strains) or their increments are its gradient vectors.
本文也指出了由于应变率敏感性所引起的内耗增量和过应力的类比性。
The analogy between internal friction increment and overstress due to strain-rate sensitivity is clarified.
本文采用有限元法和增量理论对小位移小应变的弹塑性接触问题进行分析。
In this paper, the contact problems of small displacement and strain have been analysed by finite element method and incremental theory.
然后,以增量方法逐波累计计算残余应变。
Then, the residual strain is calculated by using the incremental method of the cycle-by-cycle accumulation.
在这一理论框架下,增量的应力应变关系可以从所构造的能量函数中推导出来。
Under this framework, the stress-strain relations are derived from a pseudo-elastic strain-energy density.
本文采用塑性应变分量的分部屈服概念,提出了适用于增量法计算的分部屈服加载准则;
This paper, adopting the Concept of divitional yield of plastic strain components, proposes a loading criterion of divitional yield, which is suitable for incremental numerical method.
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