塑性流动

多晶Cu在双向加载下的后继屈服与塑性流动分析

Subsequent yield and plastic flow analysis of polycrystalline copper under biaxial loading

Na-Beta-Al2O3初、中期的热压致密化过程可用塑性流动机理描述。

The densification process of hot pressed Na-Beta-Al_2O_3 in the initial and the intermediate stages can be described by the plastic flow mechanism .

平面变形H型断面锻件金属塑性流动过程的数值模拟

The Numerical Simulation of Metal Plastic Flow on Forging of H Shape Section in Plane Deformation

Lode参数的物理实质及其对塑性流动的影响

Physical essence of Lode parameter and its effect on plastic flow

本文利用用Lagrange法计算二维柱对称弹塑性流动程序包，计算了飞板碰撞的弹塑性流动。

The elastic-plastic flow on flying plate impact has been evaluated with the package Two-Dimensional Cylindric-symmetrical Elastic-Plastic Flow Calculation by the Lagrange Method .

结果表明：PP/蒙脱土纳米复合材料的流动特性与常规PP相似，为典型的假塑性流动；

The results showed that PP / montmorillonite nano-scale composite had typical pseudoplastic behaviors as normal PP , its non-Newtonian index increased with the increase of the temperature .

316L不锈钢室温和高温单轴循环塑性流动特性分析

Analysis for Plastic Flow Characteristic under Uniaxial Cyclic Loading at Room and High Temperature of 316L Stainless Steel

超塑性Y-TZP的高温塑性流动行为

High temperature plastic flow behavior of superplastic 3Y-TZP

使用FLUENT流体工程仿真软件对搅拌摩擦焊缝金属的塑性流动进行了数值模拟；初步得出了搅拌摩擦焊焊缝塑性流体流动规律。

Numerical simulation of the flow pattern in friction stir weld is carried out based on FLUENT simulation software and the rule of flow pattern is obtained .

推导了MSG塑性流动理论的本构方程，其中考虑了摩擦应力的影响。

The constitutive relations of MSG flow theory are given , with consideration of the effect of friction stress .

结果表明：1000℃时.助烧剂的粘-塑性流动机制及粘结作用是实现Al/Al2O3陶瓷基复合材料烧结及性能提高的主要原因。

The results show : The viscous plastic and sticky affect of sintering aids is the main reason to realize the sintering of Al / Al2O3 , CMC and increase .

在高应变变形区域，相对温度来说，OFHCCu塑性流动应力对应变率依赖更强。

In the region of higher strains , the flow stress of OFHC Cu is more sensitive to strain rate than to temperature .

此模型可预测从低到高不同应变率不同温度下OFHCCu的塑性流动应力。

This model could be used to predict the flow stress of OFHC Cu over a wide range of temperatures and strain rates .

如果这部分曲线水平，也就是意味着，没有增加，，of，F，over，A，金属丝会继续变长，我们称之为塑性流动。

If this part of the curve is horizontal , it means that without any increase F / A the wire will continue to get longer and longer , and we call that plastic flow .

分析还表明，大变形J2塑性流动理论对缺陷比大变形J2塑性变形理论更敏感。

The study proves that the J2 flow theory of large strain plasticity is more sensitive to the shape of the defect than the J2 deformation theory of large strain plasticity .

经过挤压和轧制后，SiC颗粒的分布沿金属塑性流动方向有明显的取向变化，在轧制过程中SiC颗粒的破碎明显。

After the composite 's being extruded and rolled , the SiC particles distributed along the direction of the metal plastic flow . The size of the particles reduced markedly in the rolling process .

并对半固着磨具加工的工件表面进行了高分辨率的AFM和SEM分析测试，未发现微小裂纹存在，但有类似金属切削的塑性流动产生。

The high resolution AFM and SEM were used to test the workpiece surfaces that were processed by SFAP , the microcracks were not found and the plastic flow similar metal-cutting were found .

分析论述了烧结过程中烧结坯内部所形成的孔隙，在锻造时对大晶粒WC的碎裂及钢基体塑性流动所产生的影响。

Analysis is made of the effect of porosity of sintering compact on the fracture property of large-size tungsten carbide grain and the plastic fluidity of steel substrate during forging .

3Y-TZP的高温塑性流动应力随着温度的降低和应变速率的提高以及晶粒尺寸的增大而提高。

Plastic flow stress increased with the increase of strain rate and grain size and the decrease of temperature .

磨损亚表层中基体金属沿滑动方向的塑性流动是铝基复合材料磨损的基本特征，Al2O3纤维可有效地阻止基体的塑性流动，提高复合材料的耐磨性；

Wear behavior of MMCs is characterized by plastic deformation of matrix in sliding direction along sub-worn surface . Al_2O_3 fiber can prevent matrix from plastic deformation and improve wear-resistance property effectively .

结果表明：在冲击磨料磨损条件下，复合材料基体磨损以凹坑和塑性流动为主，TiC颗粒则起到增强基体的作用。

The result indicates that : in the condition of the impacting abrasives wearing , there are mainly notches and plastic flow of the matrix of the composites , and TiC particulates reinforces the matrix .

另外还发现：随着边界吸引强度的提高，临界钉扎力Fc不断增加，并在运动近晶相向塑性流动相的过渡区陡然增加。

In addition , we find that the critical force Fc increases with the strength of the pinning , and sudden increase is found in Fc within the crossover from the smectic to plastic flows .

在316L不锈钢室温、高温单轴应变控制和应力控制下的系统循环试验结果基础上，对两种控制模式下循环过程中的塑性流动特性进行了定量分析。

: Based on the experimental results of 316L stainless steel subjected to uniaxial strain and stress cycling at room and high temperature , the properties of plastic flow of material were quantitatively analyzed .

黑色PEEK复合材料的摩擦系数为021，比磨损率为061×10-6mm3/（N·m），两种复合材料主要受粘着磨损机制控制，并伴有热塑性流动磨损

Meanwhile , those of the black PEEK composite were 0 21 and 0 61 × 10 - 6 mm 3 / ( N · m ) respectively The wear of the black PEEK composite was controlled mostly by adhesive mechanism and going with thermoplastic flow

算例和分析结果表明，不同黏塑性流动参数下所得的结果与利用ANSYS有限元求解的差分法结果一致，弹性和弹塑性是弹黏塑性的两种极限情况。

Two numerical examples showed that the results of the stress sensitivity with different viscoplastic parameters agreed with the finite difference solution based on the ANSYS finite element method ( FEM ), and that the elastic problem and elastoplastic problem are both of the elastic viscoplastic limit cases .

不同温度下的转矩测定和190℃二次热压的塑性流动证实交联BIIR具备热塑加工性。

The torque measurement at different temperature and thermal recompression indicated that the crosslinking BIIR had good thermal induced flowability and thermal reprocessing ability at190 ℃ .

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 .

提出了CFD仿真环境下非牛顿流体压力相关的粘度模型及密度模型的自定义方法，实现了对EPB盾构密封舱土压力系统工作过程中改性土体粘-弹-塑性流动行为的数值模拟。

The model provides the basis for the numerical simulation for the work process of the working chamber earth pressure system . ( 2 ) The pressure dependent viscosity model and density model of viscoplastic non-newtonian fluid is established by user-defined method in CFD simulation environment .

本文依据Kirchhoff薄壳理论与J2塑性流动理论，提出了分析轴对称刚性冲头胀形成形的大变形弹塑性拉格朗日有限元分析的数学模型。

According to Kirchhoff 's theory of elastic-plastic finite deformation of thin shell and the theory of J2 plastic flow , a mathematical model is proposed for large deformation elastic-plastic Lagrangian finite element analysis of rigid punch made of thin metal plate .

采用Mises塑性流动准则对热胀式塑料密封热采封隔器的热胀筒和塑料密封套的塑性与热胀剂内压的关系进行了研究。

By using the Mises plastic flow criterion , the relation between the plasticity of the heat expansion harrel and the plastic sealing sleeve on a heat expansion - type plastic sealed packer and the internal pressure of the heat expanding agent is investigated .