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   线性强化 在 金属学及金属工艺 分类中 的翻译结果: 查询用时:1.922秒
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线性强化    
相关语句
  linear hardening
    Inspired by the symmetric collapse model of thin-walled tube under axial compression and expanding its applicable material type from the ideal plastic case to the linear hardening one,this dissertation for the first time proposes a zoning model to explore the local wrinkling characteristic of the THF.
    受到轴向载荷作用下的薄壁管轴对称坍塌的机构化模型的启发,在将该机构化模型的适用材料类型由理想塑性材料推广至线性强化材料之后,本论文针对管材无模轴压胀形端部皱曲的局部性特征,首次提出了一种“皱曲区—膨胀区—皱曲区”的管坯区划理论模型。
短句来源
    Firstly, this paper analyzes the process of the linear hardening strip’s tension levelling on the basis of the theory of metal strip’s elasto-plastic deformation deeply, it also compares two kinds of different computing mehods of bending radius in combination with experimental data to obtain more reasonable bending radius and establishes experimental elongation model and tension loss model.
    首先,本文以金属材料弹塑性变形理论为基础,对线性强化金属带材的拉伸弯曲矫直过程进行了深入的分析。 分析比较了两种不同的弯曲半径计算方法,并结合实验数据,探讨了带材拉弯时延伸率计算的修正方法。
短句来源
  linear strengthening
    The process of deformation for plate accords with the theory of linear strengthening.
    板料成形过程符合线性强化理论。
短句来源
  linear work-hardening
    Based on the assumption of rigid and linear work-hardening, and the analogy between the deformation of the rigid and linear work-hardening beam after yield and the linear elastic beam, computing model and formula for air bending of sheet-metal V-shape are set up, program to calculate air bending force is realized and basic features of air bending are analyzed.
    基于材料刚-线性强化的假定,以刚-线性强化梁在屈服以后的弯曲行为与弹性梁的弯曲行为相类似为前提,建立了板料V形自由弯曲过程的计算模型和数学方程,实现了自由弯曲力的程序求解,并分析了自由弯曲的基本特征。
短句来源
  linear work-hardening
    Based on the assumption of rigid and linear work-hardening, and the analogy between the deformation of the rigid and linear work-hardening beam after yield and the linear elastic beam, computing model and formula for air bending of sheet-metal V-shape are set up, program to calculate air bending force is realized and basic features of air bending are analyzed.
    基于材料刚-线性强化的假定,以刚-线性强化梁在屈服以后的弯曲行为与弹性梁的弯曲行为相类似为前提,建立了板料V形自由弯曲过程的计算模型和数学方程,实现了自由弯曲力的程序求解,并分析了自由弯曲的基本特征。
短句来源

 

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  linear hardening
Basic space-time features of strain localization at the stages of yield plateau, easy glide, and linear hardening are established.
      
Stress field near an interface edge of linear hardening materials
      
The domain region of the elastic-plastic singular stress becomes larger with the increasing of the linear hardening coefficient.
      
When the linear hardening coefficient decreases to a certain value, the effective stress in most of the yield zone equals approximately the yield stress.
      
Either linear hardening or power law hardening uniaxial stress-strain curves are assumed in the analysis.
      
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  linear strengthening
The main space-time characteristics of deformation localization at the stages of easy slip and linear strengthening in these single crystals are established.
      
The quantitative characteristics (wavelength, propagation velocity) of deformation waves that are formed at the stage of linear strengthening were determined.
      
Propagation of a load pulse in rods manufactured from an elastic-viscous-plastic material with linear strengthening
      
  linear work-hardening
In the easy-glide and linear work-hardening stages of flow, waves of new type are found to propagate.
      
The linear work-hardening coefficient, the fracture time, the yield stress and the fracture stress of annealed and quenched samples decreased with increasing deformation temperature and exhibited a minimum at 733 K.
      
The constant 67-3 for a linear work-hardening solid where S is the dimensionless slope of the stress strain curve and 67-4 for a non-linear work-hardening solid where h is the work-hardening coefficient.
      
It predicts linear work-hardening, whereby the ratio of the work-hardening rate,H, to the shear modulus,G, is constant when a crystal is tested in the absence of recovery.
      
It predicts linear work-hardening, whereby the ratio of the work-hardening rate,H, to the shear modulus,G, is constant when a crystal is tested in the absence of recovery.
      
更多          
  linear work-hardening
In the easy-glide and linear work-hardening stages of flow, waves of new type are found to propagate.
      
The linear work-hardening coefficient, the fracture time, the yield stress and the fracture stress of annealed and quenched samples decreased with increasing deformation temperature and exhibited a minimum at 733 K.
      
The constant 67-3 for a linear work-hardening solid where S is the dimensionless slope of the stress strain curve and 67-4 for a non-linear work-hardening solid where h is the work-hardening coefficient.
      
It predicts linear work-hardening, whereby the ratio of the work-hardening rate,H, to the shear modulus,G, is constant when a crystal is tested in the absence of recovery.
      
It predicts linear work-hardening, whereby the ratio of the work-hardening rate,H, to the shear modulus,G, is constant when a crystal is tested in the absence of recovery.
      
更多          
  其他


The deformation of rigidplastic ring under lateral compression is studied in this paper .The ring is linear hardening one. When laterally compressed by rigid plates ,instability occurs. The cause of instability is discussed and the critical condition is given.

线性强化圆环横向压扁进行了研究,探讨了接触面内凹产生的机理,提出了内凹产生的判据。将理论结果与实验结果进行了比较。

Based on the theory of dynamic explicit elastic plastic FEM, the strip rolling process was simulated and analyzed. In the simulation, the roll was modeled by the rigid material and the strip by the bilinear isotropic hardening material. The rolling was carried out by the contact friction after the strip had moved towards to the roll gap with an initial velocity and bitten into the gap. The stress and strain distribution of the whole rolling process was obtained, including during the bite stage, the steady stage...

Based on the theory of dynamic explicit elastic plastic FEM, the strip rolling process was simulated and analyzed. In the simulation, the roll was modeled by the rigid material and the strip by the bilinear isotropic hardening material. The rolling was carried out by the contact friction after the strip had moved towards to the roll gap with an initial velocity and bitten into the gap. The stress and strain distribution of the whole rolling process was obtained, including during the bite stage, the steady stage and the exit stage. Out of the calculation results, the rolling pressures on the width symmetry center were compared with the experiment values. They are in good agreement. The calculation results also showed that there are a pre elastic deformation zone, a plastic deformation zone and an elastic recovery zone in the contact surface at the steady stage. The rolling pressure distribution along the contact surface varies much steeper at the entry and exit zones than at the middle zone.

分析了显式动力学弹塑性有限元方法的计算过程 ,并用其对平板轧制问题进行了模拟计算·模拟时轧辊采用刚性材料模型 ,轧件采用双线性强化材料模型 ,轧件具有一定的初始速度并向辊缝运动 ,咬入后靠摩擦完成轧制过程·通过模拟计算 ,得出咬入、稳定轧制和抛钢阶段整个轧制过程的应力 应变场·将板宽对称中心线轧制压力分布的计算结果与实验值进行对比 ,表明计算结果准确·另外通过对计算结果进行分析还可以得出 ,在稳定轧制阶段存在弹性预变形区、塑性变形区和弹性恢复区 ;轧制压力沿接触面的分布在入口和出口的变化梯度较大 ,中间区域的变化梯度较小·

By analyzing the defect of the Lee-Shaffer cutting model and emphasizing the existence of work harden process in the chip formation, an improved metal cutting model based on the linear reinforced elastic and plastic material is established. The parameter λ is defined as chip-tool contact ratio by which the lever of the chip curl can be determined. The results of theoretic analysis based on this new model are supported by the experiments.

分析了Lee—Shaffer刚塑性滑移线场切削模型的不足 ,强调切屑形成过程中存在加工硬化 ,据此建立了基于线性强化弹塑性材料的切屑卷曲模型 ,定义了衡量切屑卷曲程度的参数———刀—屑接触长度比λ,并通过切削试验对新的切屑卷曲模型进行了验证。

 
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