Plastic flow failure is mainly induced by building up of excess-static pore pressure.
塑性流动失稳破坏是由孔隙水压力的累积作用起主导作用;
If the die material is transparent, the process of the plastic flow can be observed easily.
如果将模具用透明材料制造,则可就地观察到塑性流动的整个过程。
Most of the cracks would propagate along the direction of plastic flow into the inside of the rail.
在靠近钢轨表面一定的深度内,裂纹萌生后基本上沿着塑性流变的方向向钢轨内部斜向下扩展。
If, when the stress is removed, the deformation remains, the material is said to exhibit plastic flow.
如果在撤去应力后变形仍保留,则称此材料呈现塑性流动。
There's a good agreement between the plastic flow modelling of FEM and the experimental grid distortion patterns.
塑性流动模型与网格实验结果在趋势上得到较好的吻合。
The incremental elastic stress-strain relation is derived. The process is similar to the analysis in plastic flow.
类似于塑性流动分析方法,定义了增量弹性应力应变关系。
From the plastic flow theory, the three-dimensional deformations and stresses of the deformation zone are formulated.
根据塑性力学流动理论,分析推导了变形区三维变形和应力的数学模型。
The main reason of casing failure in most oilfields is the plastic flow in salt rock, gypsolyte and shale due to creep.
我国大部分油田套管损坏的原因主要是岩盐层、膏岩层、泥岩层等由于蠕变产生的塑性流动而挤坏套管的。
Injecting the mixing liquid of mud and foam achieves good effects for plastic flow property conditioning of gravel with sand.
注入泥浆和泡沫的混合液对砂卵石地层进行塑流化改善效果良好。
The defects of the component metal during drawing results from the inhomogeneous plastic flow between the two component metals.
组元金属之间不均匀的塑性变形是导致组元金属在拉延过程中产生缺陷的主要根源。
It is shown that essentials of the method is the discretion of plastic flow rule and that the method is modified in general meaning.
结果表明:该方法的物理实质是所述的塑性流动定理的离散。
A new technique is described for the numerical investigation of the time - dependent elastic - plastic flow with sliding interfaces.
文中叙述了一种适用于具有滑移面的,和时间有关的弹塑性流数值计算方法。
Then plastic flow mechanics are depicted in three aspects as follows: heat transfer, physical state changing and viscoelastic formation.
从传热学、物理状态变化和粘弹形变三方面阐述了微通道热压成形过程中塑料的流动机理。
The powerful stress is big enough to cause plastic strain and plastic flow on the interface which can provide good conditions for bonding.
强大的应力使材料发生塑性变形,产生塑性流动,为界面生成键合强度提供良好的条件;
Silicone rubber insulation compounds are inherently soft and pliable and resists the plastic flow that characterizes many insulation systems.
硅橡胶绝缘化合物性质柔软圆滑可抵抗具有许多绝缘系统的塑性流动。
Because of the complexity of the soft foundation, it is much difficult to calculate the additional settlement caused by the plastic flow accurately.
由于软土地基的复杂性,要准确计算塑流引起的附加沉降有相当大的难度。
Based on the plastic flow theory of soils, an elastoplastic constitutive model for describing the dynamic behavior of the saturated sands is developed.
利用土体的塑性流动理论,提出了用于描述饱和砂土动力反应性质的弹塑性本构模型。
The micro wear mechanism for PEN is plastic flow and broken of the fiber structure, while that for PI is crack initiation, extending and block fracture.
PEN薄带的微观磨损机理主要是纤维组织的塑性流动和拉断,而PI薄带的微观磨损机理为裂纹的萌生、扩张和块状剥落。
A new viewpoint was advanced, in which the plastic flow of metal layer to be cut becomes the cutting burr, and it was confirmed by experimental results.
并提出了被切削层金属沿刀具切削刃向工件两侧的自由表面产生塑性流动是形成两侧方向毛刺主要原因的新观点,得到了试验结果的证实。
The experiment showed that the mode of deformation and the plastic flow mechanism of solid and liquid phase under different solid phase ratio were different;
实验表明:半固态浆料模锻成形的变形方式是不同的,不同的固相率下其固液两相的塑性流动机制也是不同的;
This paper studies the bounding problems of the complete solution of limit analysis for a rigid-perfectly plastic medium, allowing for discontinuity of plastic flow.
本文研究了非连续流动场中,刚塑性介质极限分析完全解的界限问题。
The theoretical calibration curves for friction of plastic working was plotted and the exact position of the neutral layer of plastic flow was given in the solution.
进而采用该解绘制塑性加工中测量摩擦系数的理论校准曲线。
In this paper, the deformation of the axisymmetrical tunnel in soft rocks is studied by using the Mohr-Coulomb yield criterion and non-associative plastic flow rule.
本文采用莫尔-库仑屈服准则和非关联塑性流动法则分析了轴对称软岩巷道的变形规律。
Hence, three-dimension plastic flow problems are translated into two-dimension problems, and the plastic velocity field function is given in special-shaped extruding.
将三维塑性流动问题转化为简单二维问题,求解了异型挤压塑性速度场函数。
The results indicate that the wear of gauge-rail and the plastic flow are dominant for heavy-haul curve rail, and the fatigue behavior is primary for high-speed rail.
钢轨侧磨与压溃是重载曲线段钢轨的主要损伤类型,而高速铁路钢轨主要表现为疲劳损伤特征;
Special instances of plastic flow are cold flow, which occurs in vulcanized rubber after low stress has been continuously applied for a long time, and creep of metals.
塑性流动的特殊情况是冷变形,发生在硫化橡胶长时间连续承受低应力时以及金属蠕变时。
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.
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。
Investigation indicated that plastic flow characteristic is not obvious at the interface between ASBs and matrix, which observed long crack in lamellar microstructure.
片层组织绝热剪切带与基体的界面塑性流变特征不明显,并且在该区域观察到了呈快速扩展特征的长裂纹。
According to stress distribution pattern in working region of the workpiece, the plastic flow condition is inspected, the mechanism of cold rolling forming is analyzed.
通过工件工作区的应力分布云图考察金属材料的塑性流动情况,分析冷辗成形的机理。
The experimental results show that the failure of specimens will be either hydraulic fracturing or shearing plastic flow, it depends on the initial principal stress ratio.
研究结果表明,在不同起始主应力比条件下,试件可以表现为水力劈裂破坏,也可以为剪切塑流破坏。
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