综合论述了金属的电致塑性和电致超塑性效应的研究状况。
The present research results about the electro plastic and electro superplastic effect of metals are summarized in this paper.
在金属压力加工中,利用电塑性效应可降低金属变形抗力,增加金属成型极限,改善产品表面质量。
Electroplastic effect can be employed to increase metal forming limit, reduce deformation resistance and improve surface quality of product.
谈及音乐的迁移效应时,科学家们经常提到大脑的可塑性,即大脑会随着使用方式的变化而发生改变的事实。
When it comes to transfer effects of music, scientists frequently point to brain plasticity—the fact that the brain changes according to how we use it.
这是首个能够证明跨越世代效应不仅仅体现在行为上,更体现在大脑可塑性上。
This study is probably the first study to show there are transgenerational effects not only on behavior but on brain plasticity.
在此基础上,本文首次采用弹-粘塑性边界元法并结合锚喷支护考虑了隧洞掘进面时空效应作用问题,从而拓展了边界单元法的工程应用。
Based on the above work a space-time effect on the excavation face of tunnel with the function of bolting support is considered, thus the engineering application of BEM is developed.
在经典弹-塑性理论的屈服函数中引入应变梯度及考虑应变率效应的函数。
The second shear strain gradient and the function reflecting the effect of strain rate are introduced into the yield function of classical elastoplastic theory.
基于应变叠加原理的基本思想。阐释了金属振动塑性加工平均应力减小的原因,给出了体积效应机理的数学描述。
Based on the strain superposition principle, the phenomenon of mean stress reduction in metals plastic processes with vibration is explicated. and the mechanism of volume effect is described.
以粉煤灰的火山灰效应、微集料效应分析为基础,分析研究了粉煤灰对混凝土塑性收缩、干缩、自缩和温度收缩裂缝的影响。
Based on analyzing the eruption and tiny aggregate effect of fly ash, the influence of fly ash on the shrinkage fissure of concrete is studied, caused by the plastic deformation, dry or temperature.
文中假定,弹性阶段的粘性效应可以略去,仅在塑性应变中粘性才起作用。
It is assumed that the viscosity effect can be neglected for elasticity strain, and only for plasticity strain, the viscosity is significant.
针对复杂的交变载荷,采用运动强化模型反映塑性应变引起的各向异性和包辛格效应。
The (aeolotropism) and Bauschinger effect resulted from plastic deformation under cyclic loading were reflected by the kinematic hardening model in the SFEM.
从实验中同时得出大塑性变形鲍辛格效应的特征。
In addition, the feature of the Bauschinger effect for large plastic deformation was revealed in this work.
采用弹塑性理论研究了具有柱状结晶构造的海冰的SD效应。
The SD effect of the sea ice with cylindrical crystal construction has been study with the elastic-plastic theory.
过载效应是裂尖钝化、裂尖附近残余压应力和裂尖尾部塑性诱导闭合等共同作用的结果。
The overload effects were controlled by various factors such as crack blunting, residual compressive stress ahead of the crack tip and crack closure induced by wake zone plasticity.
本方法可以考虑任意实际初始缺陷和材料弹塑性加卸载效应的影响。
All practical initial imperfections can be considered, and, the effect of loading, unloading and reloading to the material of members can be included in analysis.
该模型给出了一个新的背应力演化方程,引入了非比例度参量,并且还考虑了最大塑性应变幅值记忆效应和温度效应的影响。
In this model, a new kinematic hardening equation was used; the non-proportionality, the effect of temperature and memorization for the maximum plastic strain amplitude were also considered.
另外大量之高温塑性变形可以产生较小之肥粒铁晶粒这样可以抵消高温热浸温度所造成之晶粒粗大效应。
Large amounts of deformation can lead to smaller ferrite grains which can balance the high temperature soaking effect.
管料的数控弯曲是一种先进的管弯曲塑性加工技术,而数控弯管技术的高效应用需要相关的软件支持。
The nc tube bending process is one of the advanced tube bending technologies, and its high effective application needs the corresponding software to support its performance.
应用有限元方法建立了可考虑屈服应力温度相关效应的粗糙表面热弹塑性接触模型。
A thermal elastoplastic contact model which can take into account the effects of temperature-dependent yield strength was developed by using finite element method.
对于非均质各向异性软土地基上管桩基础的承载力,基于塑性极限分析理论考虑软土强度的非均质与各向异性效应,提出了一种改进的三维极限分析上限解法。
A modified three-dimensional plastic limit analysis method is proposed for lateral bearing capacity of the large-diameter pipe pile in the inhomogeneous and anisotropic soft ground.
对于形变理论,假定塑性应变张量与总应变偏量张量成比例,其比例因子是总有效应变的标量函数。
For plastic deformation theory, it is assumed that the plastic strain tensor is proportional to the total strain deviation tensor and the ratio is a sealer 'function of the effective total strain.
由于微结构效应,基于梯度塑性理论的剪切带内部的最大塑性剪切应变及最高温度的预测值高于经典理论的预测值。
The prediction values of shear strain and temperature in shear band based on gradient-dependent plasticity are higher than those by use of classical elastoplastic theory.
对国外相变诱发塑性影响因素的研究进展做了概述,介绍了T RIP效应及其影响因素。
The research progress of transformation induced plasticity (TRIP) effect was briefly reviewed and the TRIP effect and its influencing factors were introduced.
本文应用基于多重剪切塑性本构模型和液化状态面的有效应力分析方法,探索了液化场地微型斜桩的抗震性状和桩土动力相互作用机制。
Herein an effective stress analysis method using a multiple shear plasticity model and a concept of liquefaction front was used to investigate the static and dynamic.
一般认为将机械振动引入到金属的塑性成形加工中,不但可以降低材料变形时所需的外力,还能大幅度提高产品成形质量,这些效果的产生主要缘于体积效应的影响。
Volume effect is in the case of the plastic processing system with vibration, under this process the deformation resistance force of materials is reduced, and the deformation rate is risen.
分析中考虑了大位移引起的几何非线性;塑性、应变强化及应变率效应引起的材料非线性的影响。
It takes into account the influences of geometrical nonlinearities due to large, deflection and material nonlinearities due to plasticity, strain-hardening and Strain-rate Sensitivity.
由于加工硬化效应的影响,随着冷拔变形量的增加,合金丝材的室温强度增加,扭转塑性下降。
Due to the effect of strain hardening, higher amount of cold deformation resulted in superior room temperature strength and inferior torsion ductility.
研究结果表明,通过采用塑性有效应力概念的方法提出的本构模型能用来描述饱和多孔白垩岩的孔隙力学特性。
It is shown that the proposed model is able to describe the poromechanical behaviour of saturated porous chalk by using the concept of effective stress.
研究结果表明,通过采用塑性有效应力概念的方法提出的本构模型能用来描述饱和多孔白垩岩的孔隙力学特性。
It is shown that the proposed model is able to describe the poromechanical behaviour of saturated porous chalk by using the concept of effective stress.
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