1) rigid-plastic FEM
刚塑性有限元
1.
The validity of the new model has been examined by the bar rolling experiment and the rigid-plastic FEM simulation.
为验证新模型,完成了棒材轧制试验,并且利用刚塑性有限元法对轧制过程进行了模拟。
2.
The model of cutting process is established based on the rigid-plastic FEM,and the transient stress distribution of cutting tool in cutting process is obtained through the simulation.
基于刚塑性有限元方法建立了切削加工过程仿真模型,通过模拟获得了切削加工过程中刀具应力的分布和变化情况。
3.
Lagrange method for the static large deformation analysis is used to establish a rigid-plastic FEM(RPFEM) analysis model based on the orthogonal cutting process of 2D plain strain hypothesis.
针对典型的正交切削工艺过程,采用分析静态大变形过程的Lagrange描述法,建立了基于平面应变假设的正交切削过程的刚塑性有限元(RPFEM)分析模型;自行开发了模拟切削变形过程的刚塑性有限元分析程序,详细分析了正交切削变形全过程,计算出了变形体内部的网格变形图和速度场、应力场和应变场的分布结果和成形力随行程(时间)的变化曲线;对切削模拟过程中相关技术问题如切屑与基体材料分离准则、切屑与前刀面脱离判据等进行了系统的探讨;在网格重新划分时,采用面积加权平均和体积加权平均相结合的算法,实现新、旧网格体系之间参数的传递;以刨削为例完成了常温条件下铝试件模拟试验,试验结果证明了数值模拟的正确性。
2) Rigid-plastic finite element
刚塑性有限元
1.
With rigid-plastic finite element model,backward extrusion process of chain roller is simulated numerically by the software Marc.
采用刚塑性有限元模型,应用Marc软件对链条滚子的反挤压成形过程进行了数值模拟分析,得出了应力应变分布规律和压力行程曲线,其中压力—行程曲线与实验测试数据吻合良好。
2.
In this paper,the rigid-plastic finite element method is adopted to simulate the process,through which the distributions of velocity、effective stress and effective strain are obtained and utilized to reveal the deformation features of the process.
文章采用刚塑性有限元法对板材冲挤成形工艺进行了模拟,确定了板材冲挤变形的速度场、等效应力场和等效应变场,揭示了板材冲挤工艺的成形特点。
3.
Based on rigid-plastic finite element method,backward extrusion process of TB10 titanium alloy cylinder was simulated numerically.
基于刚塑性有限元法,对TB10钛合金筒体反挤压过程进行数值模拟。
3) rigid plastic FEM
刚塑性有限元
1.
In this paper,numerical simulation of drawing process of U shape sheet of Zn 22Al alloy is presented by rigid plastic FEM.
用刚塑性有限元法对Zn 2 2Al合金U形拉延过程进行了数值模拟 ,分析了变形过程中工件的应力、应变、摩擦和厚度分布 ,揭示了成形过程中金属的塑性变形规律 ,为成形工艺设计提供了有效的分析工具。
2.
A method dealing with the driven mandrel velocity and distribution of roll reduction in the rigid plastic FEM is presented in this paper.
提出了刚塑性有限元法中处理从动芯辊速度及压下量分配的方法,并在单道次轧制的基础上,对恒压力及恒压下速度两种不同的连续轧制过程进行了分析。
3.
The rolling force in strip rolling process was solved nonlinearly by the program we developed via the 2D compressible rigid plastic FEM.
用可压缩刚塑性有限元法,通过自行开发的计算程序对板带轧制过程进行了二维非线性求解。
4) rigid plastic finite element method
刚塑性有限元
1.
The results of roll configuration design are used as initial parameters for rigid plastic finite element method to analyze forming process,the analysis results,such as velocity field,strain,stress,are fed back to pass design system to modify primary pass design,and then the roll drawings are made which are in agreement with the need of technics.
把辊型设计的结果作为初始参数,由刚塑性有限元分析成型过程,将速度场、应变和应力反馈到辊型设计系统,调整辊型设计的初始参数,绘制出适应钢管冷斜轧工艺要求辊型图。
2.
Based on rigid plastic finite element method, in terms of experiment results, and by the means of FEM software ANSYS, the deformations, stresses, strains, plastic flowing in sheets, rolling forces and rolling moments in symmetrical or asymmetrical rolling of bimetal composite sheets were analyzed.
采用刚塑性有限元法 ,以实验结果为依据 ,以大型有限元软件ANSYS为分析工具 ,对双金属复合带材轧制过程进行计算机数值模拟。
3.
Full three dimensional rigid plastic finite element method (3D RPFEM) was used for numerical simulation of this rolling process.
采用全３ 维刚塑性有限元法对热带粗轧机组平辊立轧非稳态过程进行了分析和比较，所得到的轧件形状、轧制力及轧制力矩与文献的实验结果吻合较好，计算精度比文献的理论结果有所提高·表明全３ 维模型具有明显的优越性，同时所采用的处理轧件入口处奇异点的方法是有效的
5) rigidplastic FEM
刚塑性有限元
1.
Using the rigidplastic FEM,the forming process is analyzed.
利用刚塑性有限元法分析纵筋板的成形过程，首次得出筋高沿变形区的变形规律，以及轧制时的筋高、轧制力等，其计算结果与实测结果相吻合。
6) rigid-plastic finite element method
刚塑性有限元法
1.
Based on the stress-strain data gaining from experiment of isothermal compression 58SiMn steel, using rigid-plastic finite element method, the isothermal-extrusion deformation of 58SiMn double-cup part was simulated, the deformation force and metal flowing law in the course of isothermal-extrusion deformation was discussed.
根据等温压缩实验所得的58SiMn钢应力一应变数据,应用刚塑性有限元法模拟58SiMn钢双杯形件等温挤压成形,着重探讨58SiMn钢等温挤压成形过程中变形力及金属流动规律,从而为该类零件等温挤压成形工艺提供科学的依据。
2.
According to the stress-strain data gaining from isothermal compression experiment,and using rigid-plastic finite element method,the magnesium alloy isothermal-extrusion forming was simulated.
本文采用等温挤压工艺,成形温度为350～360℃;根据等温压缩实验所得变形镁合金应力-应变数据,应用刚塑性有限元法模拟变形镁合金等温挤压成形,探讨变形镁合金等温挤压成形过程中,变形力及金属流动规律;根据模拟得到的应力场、应变场、速度场及加载变化等,预测变形时产生的缺陷。
3.
The constrained superplastic bulging process is investigated by a large rigid-plastic finite element method.
采用大变形刚塑性有限元法模拟超塑性材料轴对称锥形模约束胀形过程。
补充资料：刚明
1.犹严明。
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