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K., Theory of elastic- plastic -damage behavior of plastic hinges, Proceedings of the First National ...

一般而言，金属材料初始状态的所谓线性弹性行为确实存在，但经历塑性变形后，材料是否仍然。。。

Plastic machinery mainly for PVC wire enhance the hose, fiber-reinforced hose and hose PVC production lines, as well as various types of plastic extrusion machines, traction machine, Kneader, shredders, reliable quality, superior performance, with Habitat Industry advanced level, the company responsible for equipment installation, commissioning and technical personnel training, has a good after-sales service.

塑料机械主要有用于PVC钢丝增强软管、纤维增强软管及PVC软管的生产线，以及各种型号的塑料挤出机、牵引机、捏合机、粉碎机等，质量可靠，性能优越，居同行业先进水平，公司负责设备的安装、调试及技术人员培训工作，具有良好的售后服务。

The method of producing the pulley assembly may include modifying as by knurl (22 the outer flat circumferential surface of the metal insert prior to molding the plastic annular body about the metal insert, for clamping, structurally bonding, and resisting relative rotation between the plastic body and the metal insert.

生产滑轮组件的方法可以包括：在金属插入件周围模制塑料环形体之前，改变金属插入件的外圆周表面（例如通过压花（22）），以夹紧、在结构上连接及防止塑料体和金属插入件之间的相对转动。

Based on the traits of the aspherical lens, the sunlight was focused on a very small spot, and then it was transferred into a plastic fiber by an aspherical lens and a selfoc lens. A formula for calculating the optimal length of selfoc lens is presented. The optimal assembly of the aspherical lens and selfoc lens was implemented by the aid of this formula. Therefore, sunlight is coupled into a plastic fiber efficiently.

根据非球面透镜垂轴球差小的特点把太阳光会聚到很小的光点，再利用长度约为1/4节距的自聚焦透镜改变光线的数值孔径使其满足光纤的数值孔径，通过一个计算公式来计算最佳的自聚焦透镜长度，实现非球面透镜和自聚焦透镜的最佳组合，把太阳光以较高的耦合效率耦合进塑料光纤。

I line my molds with plastic wrap, fill with my icecream and cover with the leftover plastic wrap.

我自己用塑料磨具填充我的冰激凌，剩余的用塑料包装上。

With the end of the second quarter compared with the proportion of super fund changes in the largest of several industries: finance and insurance industry from the previous quarter with the low-low with 3.35% to 8.58%, petroleum chemical plastic plastic from ultra-quarter to 3.62 percent with 2.23 percent super-distribution, mechanical equipment instrumentation quarter from 0.69 percent with a super-ultra-allocated 2.55 percent, real estate from the second quarter with a low 0.56% to 0.20% super-distribution.

与第二季度末相比，在最大的几个行业：金融和保险业的超级基金，从上季的变化与低与3.35％至8.58％的低水平，石油化工的比重胶从超季的百分之3.62至2.23百分之超分配，机械设备，仪器，从百分之0.69的超级超分配的低0.56％至0.20％，超百分之2.55，第二季度房地产销售季。

The planning of the processing parameter is based on the plastic deformation of the metal because the planning of the cold rolling technique is affected by the ability plastic deformation of the metal. Industrial PC is the master processor of the cold rolling machine. The process of cold rolling monitored by the corresponding functional component real-timely.

冷辗工艺的设计受金属塑性变形能力的影响，因此工艺参数设计以金属塑性变形为基础；冷辗机控制系统以工业PC为主控制器，通过相应的功能模块实现对冷辗进程的实时监控。

The hebei liancheng machine tool accessories co., ltd , has been focusing on the development , production and sales for the industrial automation products , the main products are hose , hose connectors , water-proof cable connectors , engineering plastic drag chains , steel plastic drag chain , pipes for cooling use and protective shield and guards , JR type rectangle metalic hose , DGT type conduit shield , scrap-excluding conveyor , scrapss-excluding chain , srap conveyor , hinge type flattop chain , machine mount , machine lamps , operation series , T type slot plate , scraping , plate , etc.

河北连城机床配件公司。有限公司，一直专注于开发，生产和销售工业自动化产品，主要产品有软管，软管接头，防水电缆连接器，工程塑料拖链，钢塑拖曳链，冷却管道的使用和保护罩和警卫和JR型矩形金属软管，电信总局型管道屏蔽，废料，但不包括输送带， scrapss ，排除链，分区域行动方案的输送，铰链型航母，机器安装，机灯，操作系列， T型槽板，刮，钢板等

The shenzhen z-deli machine tool accessories co.,ltd,has been focusing on the development,production and sales for the industrial automation products,the main products are hoses,hose connectors,water-proof cable connectors,cangshi ,cangshi engineering plastic drag chains,steel-plastic drag chains,pipes for cooling use and protective shields and guards ,anti-vibration machine mount ,work lamp ,JR-2type rectangle metalic hose ,DGT type conduit shield ,chip conveyor ,steel hinge type flattop chain ,spring dust absoring pipe and so on .

深圳市中德利数控机械有限公司是研发和制造中心。主要生产电缆保护系列（工程塑料拖链，钢制拖链，DGT导管护套，矩形金属软管），导轨防护系列（柔式风琴式防护罩，钢板防护罩，盔甲式防护罩，箱体式防护罩），操作件和排屑机等机床附件产品，配备了先进的切割，折弯，焊接设备，形成了设计，生产，制造等全套集成能力，成为珠三角地区一流的机械加工、模具制造和数控机械生产厂家的供应商

To establish the constitutive equation of material, the metric tensor for stress , strain and their transformation equations between different configurations are derived, and basic theory of finite deformation as well as elasto-plastic deformation criterion are studied. By analyzing the applicability of different element models, four-node quadrilateral degenerated Mindlin isoparametric element is adopted because of its good versatility, and the element stiffness matrix is derived. The static implicit elasto-plastic finite element equation for complex skin stretch-forming is put forward based on Updated Langrange formulation.

本文首先系统地阐述了有限变形的相关基本理论，针对板料成形建立了应力应变度量张量及其相应的转换关系；介绍了材料的屈服准则、塑性变形强化规律、塑性流动规律以及加、卸载准则，并在此基础上建立了有限变形各向异性弹塑性本构方程；对板料成形的单元模型进行了分析，针对飞机蒙皮零件特点，采用通用性强的四节点四边形退化Mindlin等参壳单元进行成形模拟，并导出其单元刚度矩阵的具体形式；基于以上研究，以逐级更新Langrange描述的持续虚功率原理为基础，建立了率形式的复杂蒙皮拉形过程静态隐式弹塑性有限元方程。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。