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large strain
相关语句
  大应变
     Design of Large Strain Sheath Extensometer
     大应变鞘形引伸计的设计
短句来源
     FINITE ELEMENT METHOD FOR LARGE DISPLACEMENT AND LARGE STRAIN ELASTO-PLASTIC ANALYSIS OF SHELL STRUCTURES AND SOME APPLICATION OF DAMAGE MECHANICS
     一般壳体结构大位移和大应变弹塑性有限元分析与损伤力学的某些应用
短句来源
     An analytical theory for 1D nonlinear large strain consolidation of soft clay
     软黏土一维非线性大应变固结解析理论
短句来源
     Pile wave Analysis Program by Optimization Methods under Large Strain of Soil
     桩的大应变法波动分析优化算法程序
短句来源
     Based on the theoretical analysis and simulating test of the large strain method checking quality of pile foundation,this paper gives the frequency specrum and it is assured to be practical value.
     通过对大应变法检测桩基质量的理论分析及模拟试验研究,获得各模拟试验桩的频谱图形.证明这种方法是可行的,对桩基础的质量评价具有实际应用价值
短句来源
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  大变形
     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.
     分析还表明,大变形J_2塑性流动理论对缺陷比大变形J_2塑性变形理论更敏感。
短句来源
     Analysis of large strain constitutive relationship based on torsion test
     基于扭转试验的大变形本构关系分析
短句来源
     The results show that the life of low cycle large strain fatigue N of nitinol is between 102 -104 cycles;
     结果表明:TiNi合金低周大变形疲劳寿命在102-104之间;
短句来源
     integrative analysis model on the pass function and product crosssection shape design is created by using the 3-D elastic-plastic large strain finiteelement technique based on U.L method.
     采用基于U.L法的三维弹塑性大变形有限元理论,建立了孔型函数与产品断面形状设计的一体化分析模型;
短句来源
     The large strain constitute equations are derived according to nonlinearcontinuum mechanics, the rate of Jaumann stress and the theory of Boit consolidationon account of the limitation of small strain theory in hydraulic fill, soft ground andlarge displacement projects.
     考虑小变形分析法在吹填土、软土地基和大位移问题上的局限性,从非线性连续介质力学出发,采用Jaumann应力率和Boit平面固结理论,推导了大变形本构方程。
短句来源
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  高应变
     Analysis of Comparing Static Load Experiment with Large Strain Test for Pile Foundation
     桩基静载试验与高应变对比分析
短句来源
     Although the accumulative damage characteristic (or called low cycle fatigue character) has close inner relation with the high cycle fatigue character(which has been studied for many years) of concrete under common working stress, the systemic research reports on the behavior of concrete under low cycle fatigue with large strain haven’t been found until now.
     混凝土在偏高应变状态下的损伤累积特征,或称低周疲劳特征,虽与多年来研究的混凝土在一般工作应力状态下的高周疲劳特征有着密切的内在联系,但至今仍未见有对混凝土高应变低周疲劳性能的较系统的研究成果报道。
短句来源
     In order to formulate the compressive stress-strain model of concrete considering the behavior of low cycle fatigue under large strain,several fatigue tests of HSC prisms under axial compression with specified large constant maximum strain amplitude are carried out by the displacement-controlled loading function of the numeric electro-hyraulic servo test machine and the maximum strains beyond ε_0 of which are under various levels(ε_0 is the strain corresponding to the peak stress σ_o).
     为了建立考虑高应变低周疲劳性能的混凝土受压本构规律,本文在以往的的研究工作基础上,利用全数字化电液伺服式试验机及其位移控制加卸载功能完成了最大应变以不同幅度超过ε0(0ε为与峰值应力对应的应变)的较高强度等级混凝土棱柱体的等应变幅多次重复受压试验,获得了其独特的低周疲劳特征及加卸载应力-应变规律.
短句来源
     Based on the design drawing,the geological properties,the large strain dynamic testing results and the pipe singking records of a continious cross-over bridge and an interchangbridgeof Shanghai A5 Jiajin Freeway,the paper analyzes the influencefactors of the capacity of pretensioned spun high strength concrete piles and puts forward several propersals.
     根据上海A5嘉金高速公路某标段内2座桥的设计图、PHC管桩桩基的地质资料、承载力高应变检测值及现场沉桩记录,对影响PHC管桩承载力的因素进行分析,并在此基础上提出控制其影响因素的建议。
短句来源
     After first deformation with low strain rate, the stresses of second deformation decrease and a large strain degree is obtained due to the grain refining through dynamic recrystallization.
     在采用低应变速率进行第一次变形后,由于动态再结晶的发生,使第二次高应变速率变形时,应力降低并且可以获得较大变形量,晶粒细化充分;
短句来源
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  “large strain”译为未确定词的双语例句
     The tensile stress-strain curves and tensile strength were achieved in a large strain rate range(from 10~(-3)/s to 3×10~2/s).
     得到了从低应变率(10-3/s)到较高应变率(约3×102/s)下的拉伸应力-应变曲线和拉伸强度。
短句来源
     A large strain of 1.4% during the martensitic transformation has been observed in the textured Ni 50.5 Mn 24 Ga 25.5 polycrystal prepared by vertical zone melting unidirectional solidification.
     采用区熔法制备了Ni50 5Mn2 4 Ga2 5 5取向晶体 ,在底部、中部和顶部各切取一块样品进行相变应变测试 .
短句来源
     Large strain tensile properties of Polycarbonate/ acrylonitrile butadiene styrene(PC/ABS) polymer were experimentally investigated at different environmental temperatures in this paper.
     本文对聚碳酸酯(PC)和丙烯腈丁二烯苯乙烯(ABS)的合金(PC/ABS)高分子材料不同环境温度下的拉伸性能进行了试验研究。
短句来源
     Ni_2MnGa was a new class of functional material showing large strain under applied magnetic field.
     Ni2MnGa是一种新型的功能材料,它在磁场下能产生大的应变。
短句来源
     Studies on the Analytical Theory of One Dimensional Large Strain Consolidation Problem
     一维大应变固结问题的解析理论研究
短句来源
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  large strain
However, it is applicable in large strain and long inter-pass time.
      
The influence of ultrasound vibrations manifests itself at large strain amplitudes (~10-4), where nonlinear, amplitude-dependent absorption of ultrasound is observed to occur.
      
Comparison of the RKPM and the FEM under identical conditions showed that the RKPM is more suitable for problems where there exists extremely large strain such as in the case of slope sliding.
      
By using the large strain two-dimension plane strain model and elastic-plastic finite element method, the cause for peeling damage of Cu-Fe-P lead frame alloy was investigated.
      
In contrast, for the full lamellar microstructure the high anisotropy of deformation and the large strain discontinuity at grain boundaries resulting in decohesion of grain boundaries are the main fracture processes.
      
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In Composites, application of relatively low transverse strains or stresses can lead to locally large strains or stress in the matrix. It is therefore necessary to evalute the strain or stress concentration factors. A simple discussion of strain or stress magnification factors based upon a strength of materials type of approach is given by schulz in 1963. However, Foye 1966 solved the stress concentraton problem by finite element method indicating that the maximam stress concentration...

In Composites, application of relatively low transverse strains or stresses can lead to locally large strains or stress in the matrix. It is therefore necessary to evalute the strain or stress concentration factors. A simple discussion of strain or stress magnification factors based upon a strength of materials type of approach is given by schulz in 1963. However, Foye 1966 solved the stress concentraton problem by finite element method indicating that the maximam stress concentration in the matrix is far less than the one that may be inferred from the schulz approximate approach, stress function method are used by H Schuerch 1967 to determine the field of stress concentration produced by cylindrical inclusions in an other wise homgeneous matrix material subject to an applied stress transverse to the inclusion axis. More recently, L.C. Lee, H.D.Conway 1978 using the method by muschelisvili derived the bond stress for composite material reinforced with various arrays of fibers.Results from both schuerch and Lee-Conway also give stress concentration factors several times less than that by Sshulz.All those outined above are surveyed and another model of analysis be proposed to give an approximate solutions of this problem in this study.

单向加劲的纤维复合材料,在正交纤维方向的均布荷载作用下,基体内将出现超过外载强度的局部应力集中。最初有1963年J.C.Schulz提出的研究结果,认为这种应力、应变的集中值可以达到很高。1966年R.L.Foye用有限元素法得到的数值解,说明Shulz得到的数据,有夸大现象。1967年H.Schuerch提出均质平面弹性体(基体)中间具有一个弹性核(纤维)——以下称单核模型——的应力集中理论解;1978年L.C.Lee、H.D.Conway从基体中具有一群核的情况出发——以下称群核模型——得出了一系的数值结果。从后面这两种模型理论结果来看,也可以得出Schulz应力集中系数过大的论断。 本文先扼要介绍Schulz、Schuerch、Lee—Conway的工作。在这些研究工作的基础上,作者提出评论,并建议一个作为一般计算的模型。

Constant angular difference rotational mismatch method of Moire proposed in this paper is suitable for determining the strain states of different points in general non-homogeneous strain field. While measuring elastic or moderate plastic strains, only one analyzer grating with pitch equal to the specimen grating is necesssary and appropriate sensitivity can be attained complete strain solution of constant angular difference rotational mismatch method is derived in exact and simplified...

Constant angular difference rotational mismatch method of Moire proposed in this paper is suitable for determining the strain states of different points in general non-homogeneous strain field. While measuring elastic or moderate plastic strains, only one analyzer grating with pitch equal to the specimen grating is necesssary and appropriate sensitivity can be attained complete strain solution of constant angular difference rotational mismatch method is derived in exact and simplified expressions. The former of which is suitable for either small or large strains. Approach to determine the regions of different variables is proposed in order to measure strains during high sensitivity. The experimental device is designed and the stress concentration test by axial load is accomplished. Good agreement is found in a comparison of the experimental results to the theoretical solution.

本文提出的等差错角云纹法适用于测定任意不均匀应变场各点的应变状态.在测定弹性或不大的塑性应变时,只需用一块与试件栅等节的分析栅而仍有较好的量测灵敏度.文中推导了完全应变解的准确式与简化式,前者对大应变和小应变都适用;还提出了应在灵敏区测量应变及据此确定各变量区间的方法;设计了等差错角定位用的简便实验装置;进行了应力集中实验,实验结果与理论解有较好的符合.

The effect of large strain and high triaxiality farours the initiation and growth of voids in many ductile materials. This causes volumetric dilatation in the plasticity. So, dilatational plastic constitutive equations are proposed as eq. (1) and the inverse form in eq. (4). In which, Etm(p) is the volumetric plastic tangent modulus. When Etm(p)→∞, then yields the conventional Prandtl-Reuss equations. In eqs. (5) and (6) the criteria of strain softening are given, when either of these condition is...

The effect of large strain and high triaxiality farours the initiation and growth of voids in many ductile materials. This causes volumetric dilatation in the plasticity. So, dilatational plastic constitutive equations are proposed as eq. (1) and the inverse form in eq. (4). In which, Etm(p) is the volumetric plastic tangent modulus. When Etm(p)→∞, then yields the conventional Prandtl-Reuss equations. In eqs. (5) and (6) the criteria of strain softening are given, when either of these condition is met Ete(p) or Etm(p) turns to negative. The six material constants Ete(p), Etm(p), λe,σce,λm and σcm can be calibrated and justified by using the necking tests of axisymmetric bars (with and without notches) and the computer simulation technique. The importance of the dilatational plastic effect and the strain softening is delineated in figs. 5,6,7.

由于大应变和三轴张力的怍用,在许多韧性材料中将出现空洞的形成与扩展,从而产生塑性条件下的体积膨胀。本文提出了一组可以计及这类塑性可膨胀性的本构方程。利用轴对称试棒颈缩实验的结果、空洞模型的分析和计算模拟,可以标定方程中有关的切线模量值。为检验这类本构方程的合理性和核对所标定的模量数值,可再用之分析轴对称试棒的韧性断裂行为,以获取更逼近实验的结果。

 
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