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   各向同性硬化 的翻译结果: 查询用时:0.026秒
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各向同性硬化
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  isotropic hardening
     The Mises' Bilinear isotropic hardening model is applied to simulated the springback processes with different thickness and different curvature and analyze the factors which have effect on the springback.
     模拟中采用Mises屈服准则的双线性各向同性硬化材料模型。 对不同板厚和不同变形量的成形件进行回弹数值模拟,分析回弹的趋势和回弹的影响因素。
短句来源
     An isotropic hardening model for describing natural soft clay with structural damage is proposed.
     在边界面塑性理论的基础上,利用Dafalias的径向映射概念,提出了一个可以描述天然状态结构性软黏土力学特性的各向同性硬化弹塑性模型。
短句来源
     Finite-strain constitutive relationship based on Oldroyd objective rate of Kirchhoff stress by τ-γ curve of torsion test with cylindrical specimens is presented. Large strain constitutive equation is obtained by popularizing small deformation constitutive theory to large deformation issue,and representation of plasticity rigidity function h is derived and Isotropic hardening models and J2 flowing plasticity theory of large strain are used in the literature.
     以扭转实验测得的τ-γ曲线为基础,采用各向同性硬化大应变J2流动本构理论,给出了基于Kirchhoff应力的Oldroyd客观导数的塑性刚度函数h的表达式,建立了相应的大应变本构关系。
短句来源
     ASYMPTOTIC INTEGRATION OF ELASTO-PLASTIC CONSTITUTIVE RELATION FOR ISOTROPIC HARDENING MATERIAL AND ITS COMPUTATIONAL PRECISION
     各向同性硬化材料弹塑性本构关系的渐近积分及其计算精度
短句来源
     Based on the isotropic elastoplastic damage and multi-surface models, a new elastoplastic dynamic model for saturated clay under cyclic loading is proposed which can consider not only isotropic hardening and kinematic hardening but also isotropic shear damage and compression damage.
     根据动荷载作用下饱和软粘土的各向同性弹塑性损伤理论与多曲屈服面模型,提出了一个能分别考虑各向同性硬化、运动硬化以及压缩和剪切损伤的动力损伤本构模型。
短句来源
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  isotropic harden
     The critical rupture damage variable for isotropic harden material is studied on basis of the Lemaitre law of damage evolution.
     在Lem aitre 损伤演变规律基础上,对各向同性硬化材料临界破坏损伤变量进行了研究。
短句来源
  “各向同性硬化”译为未确定词的双语例句
     Finite element analyses and calculations show that if the characteristics of element material is defined as nonlinear brick Von Mises c
     而采用正交各向异性单元属性,有限元分析结果与实测曲线差异较大。 这表明简化模型与各向同性硬化V,Mises曲线的单元属性,对于弯曲性能的有限元分析计算是合理与适用的。
短句来源
     When this method is used for isotropic or mixed hardening, it is still exaet for radial loading, and is an accurate approximate solution for noa-radsal loading.
     将它推广应用于各向同性硬化材料和混合硬化材料时,对于径向加载情况,此积分仍是精确解; 对于非径向加载情况,此积分是具有很高精度的近似解。
短句来源
     The extended model (new B-P) contains two isotropic internal variables: one plays the role of representing the fast hardening in smaller inelastic strain range, while the other evolutes at slower speed accompanied by larger accumulated inelastic deformation, such as cyclic hardening.
     改进模型包含两个各向同性硬化内变量 :一个用于描述小非弹性应变范围内快速的各向同性硬化 ,另一个以缓慢的演化速率来表述大的累积非弹性变形 ,如循环硬化过程中非弹性应变累积。
短句来源
     The dependence of the evolutions of isotropic and kinematic hardening on the loading history was observed.
     观察到了各向同性硬化和随动硬化演化对加载历史的依赖性。
短句来源
     second,the new constitutive relationship of soil particulate has been solved,the elastic-plastic deformation of soil particulate under flow force has been solved by applying the principle of J2 flow theory and isotropic,the volumetric strain is solved by the discrete element method;
     其次,建立了新的土颗粒本构关系,利用J2流动理论及各向同性硬化原理计算土体颗粒在渗流力作用下的弹塑性变形,利用离散元法求解土体骨架的体应变;
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  isotropic hardening
The electrical yielding criterion, mechanical yielding criterion and isotropic hardening model are established.
      
The anisotropic hardening rule was based on the generalization of isotropic hardening rule and included a simple hardening function with respect to a unique internal variable.
      
Simultaneously the Helmholtz free energy function and a non-associated flow potential function are given, which include the internal variables of kinematic hardening, isotropic hardening and damage.
      
For the solutions of an initial-boundary value problem for the equations of viscoelasticity with isotropic hardening we derive a uniform bound under a growth condition for the nonlinearities in the case of one-space dimension.
      
The material is elastic/viscoplastic, satisfying Mises condition, isotropic hardening, and viscoplastic incompressibility.
      
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In this paper, the numerical computational results of st(?)ady crack growth. of mode III are presented for anisotropic hardening materials. The unknow coefficients contained in the asymptotic solutions for three cases: (1) oerfectplasticity, (2) isotropic hardening and (3) anisotropic hardening are determined by means of the results of finite element analysis. The deformation field around the crack tip for mode III steady crack growth are obtained. With, the COD or critical strain-based fracture criterion, the...

In this paper, the numerical computational results of st(?)ady crack growth. of mode III are presented for anisotropic hardening materials. The unknow coefficients contained in the asymptotic solutions for three cases: (1) oerfectplasticity, (2) isotropic hardening and (3) anisotropic hardening are determined by means of the results of finite element analysis. The deformation field around the crack tip for mode III steady crack growth are obtained. With, the COD or critical strain-based fracture criterion, the ratio of crack growth resistance K_(SS)K_C versus the constants of the mechanical behaviour of materials are determined. The results of the calculation show the ratio K_(SS)/K_C varies strongly with the anisotropic hardening parameter M and the hardening exponent N.

本文讨论对于各向异性硬化材料,裂纹定常扩展过程中,Ⅲ型裂纹的有限元分析的结果.利用数值计算结果,确定了(1)理想弹塑性;(2)各向同性硬化;(3)各向异性硬化三种情况下的局部渐近解的待定系数.得到了Ⅲ型定常扩展裂纹的全场解.指出,对于考虑各向异性硬化的材料,开口位移的近尖端断裂准则与裂纹尖端应变准则所描写的裂纹扩展阻力是不同的.它受到各向异性硬化参数M与硬化指数N的强烈影响.

A method is propoaed which concerns how to exactly integrate the constitutive equations of kinematic hardening material. The algorithmic steps are simple and convenient. When this method is used for isotropic or mixed hardening, it is still exaet for radial loading, and is an accurate approximate solution for noa-radsal loading. Computational results show that the proposed method impioveg, in accuracy and efficiency, the commonly used subcremental method of numerical integration.

考虑到弹塑性有限元分析中的每一增量步长或迭代之后,需要对材料本构关系进行积分,本文导出了运动硬化材料本构关系的精确积分。算法步骤简洁。将它推广应用于各向同性硬化材料和混合硬化材料时,对于径向加载情况,此积分仍是精确解;对于非径向加载情况,此积分是具有很高精度的近似解。计算结果表明本文提出的算法在精度和效率上改进了现行的子增量法的数值积分方案。

Using Tresca's yield condition with its associated flow rule, and the mixed hardening law, analytical solutions have been obtained for elasticplastic loading and unloading problems in a thick tube subjected to uniform internal pressure. Explicit expressions for the displacement, strains, and stresses are presented herein under the plane strain, opened-end and closedend. conditions, along with numerical examples for a closed-end tube. The results obtained in this paper are compared with those obtained through...

Using Tresca's yield condition with its associated flow rule, and the mixed hardening law, analytical solutions have been obtained for elasticplastic loading and unloading problems in a thick tube subjected to uniform internal pressure. Explicit expressions for the displacement, strains, and stresses are presented herein under the plane strain, opened-end and closedend. conditions, along with numerical examples for a closed-end tube. The results obtained in this paper are compared with those obtained through the isotropic and kinematic hardening models.

本文用Tresca屈服条件和相关联的塑性流动法则以及混合硬化模型,给出了受内压作用下厚壁圆管的弹塑性加载和卸载的封闭解,得到了平面应变、开端和闭端三种情况下位移、应变和应力的解析表达式,并将本文所得到的结果与各向同性硬化和运动硬化模型的结果进行了比较,给出了具体数值算例。

 
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