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- First, mathematical expressions for hoop strain based on linear elasticity theory and deformation plasticity theory, and thus diametral strain is derived. 模型推导过程是:首先根据线性弹性理论和变形塑性理论推导出周向应变的数学表达式,进而导出径向应变。
- Analysis of contraction ratio of section and external shape of localized necking zone was proposed based non-local gradient plasticity theory. 采用非局部的梯度塑性理论,得到了断面收缩率及颈缩区内部不同位置直径的解析解。
- A new method to determine the limit load of reinforced concrete deep beam when sheared was presented by upper-bound method based on reinforced concrete plasticity theory. 本文以钢筋混凝土塑性理论为基础,用上限方法确定了钢筋混凝土深梁剪切破坏时的极限荷载的计算方法。
- In order to circumvent the mesh-dependence problem in calculating the shear band for slope stability by finite element methods,the gradient-dependent plasticity theory is adopted. 为了解决边坡稳定分析中剪切带有限元网格的依赖性问题,采用梯度塑性理论,从本构关系中引入特征长度入手,建立计算模型。
- According to the gradient plasticity theory, we introduced two- class strain gradient into yield function, derived from the formula of deformation localization band width by using Drucker - Prager yield criterion and gave the internal length of coal. 并通过应变梯度塑性理论,在屈服函数中引入应变梯度二阶项。 采用Drucker-Prager准则解析得出了煤试件的变形局部化带宽度公式并根据试验确定煤的材料内部长度。
- By applying bisic method of plastic theory SLAB method, the optimization designing of blade balancing angle during forging is put forword and the FORTRAN program is organized. 应用塑性理论的基本方法SLAB法提出了涡轮叶片平衡角的优化方法,并编制了计算机程序。
- The deflection equation of column soleplate has been established according to the elastic- plasticity theory, and has analyses calculation for the deflection and stress of column soleplate. 应用弹塑性理论建立了柱脚底板挠度方程式,并对柱脚底板应力及挠度进行了分析计算。
- The associated flow rule for trandional plastic theory is not in accordance with the geotechnical experiment and the non-associated flow rule should be adopted. 实验证明,岩土材料不适应关联流动法则,而应采用非关联流动法则。
- A finite element program of wall beam structure under elasto-plasticity condition is compiled based on the plastic theory and used to test some practical samples. 并基于塑性理论,编制了“墙梁结构弹塑性有限元法计算程序”,对一些算例进行了验算,得到较好的结果。
- The man is carrying a small black plastic handbag. 这个人提着一个黑色的小塑料提袋。
- He is a plastic surgery specialist. 他是个整形外科医生。
- Many items in daily use are made out of plastic. 有很多日常生活用品是塑料制的。
- It is some kind of plastic made to imitate iron. 这是一种塑胶,但外观仿制得像铁。
- His theories were discredited by scientists. 他的理论科学家很怀疑。
- The fruit is prepackaged in plastic tray. 水果用塑料盘预先包装。
- Don't be led astray by false theories. 不要被错误的理论引入歧途。
- It is the translation of theories into practice. 这是理论到实践的转变。
- Many items in daily use are made of plastic. 很多日常生活用品是用塑料制成的。
- A kind of plastic stuff is used to make the plates. 这些盘子是用一种塑料制造的。
- According to these data and the basic principles of the plastic theory, the interrelation of basic and simulant deformation is studied, and the mathematical formulas of relation have been established. 根据这些试验数 据和塑性理论的原理,探讨了基本成形性和模拟成形性的相关性,建 立了具体的数学关系式。