助手标题  
全文文献 工具书 数字 学术定义 翻译助手 学术趋势 更多
查询帮助
意见反馈
   由应力 的翻译结果: 查询用时:0.017秒
图标索引 在分类学科中查询
所有学科
金属学及金属工艺
更多类别查询

图标索引 历史查询
 

由应力
相关语句
  by stress
     The effects of the phase anisotropy on mode polarization by stress is investigated.
     本文还给出了由应力导致相位各向异性对模式偏振性影响的实验结果。
短句来源
     Elastic modulus of Fly Ash HPC including C60,C70,C80 was measured in the experiment. The experiment demonstrated that the elastic modulus measured by stress strain curve was smaller than truth value of elastic modulus.
     :试验测量了C60、C70、C80粉煤灰高性能混凝土的弹性模量 ,试验表明 ,由应力 -应变曲线所得的弹性模量值小于真实值
短句来源
     The numerical model for the influence of compaction and structural stresses on permeability coefficient shows that the average effective stresses have a negative correlation with permeability of media and that the fluid migrates from high stress area to low stress area by stress driving
     压实固结和构造作用所产生应力对渗透系数影响的有限元数学模拟研究表明,平均有效应力与介质渗透性能呈负相关的变化趋势,应力驱动流体由应力高值区向应力低值区运移。
短句来源
     On the basis of the equi-entropy expansion theory and stress wave propagation theory of explosive gas, calculation formulae of pressure on the hole wall and pressure force state caused by stress wave and explosive gas are deduced.
     根据爆炸气体等熵膨胀理论和应力波传播理论,推导了孔壁压力计算公式,以及由应力波传播和爆炸气体引起应力状态的计算公式。
短句来源
     The 3-D braided composites mechanism of fracture is interpreted by stress results.
     由应力大小分析了三维编织复合材料破坏的应力解释。
短句来源
更多       
  “由应力”译为未确定词的双语例句
     In the paper, the infrared radiation energy change caused by the temperature abnormality and the stress, the principle and method of separating them from each other and further the medium temperature and stress inversion have been given.
     提出了由温度异常引起的红外辐射能量变化和由应力引起的红外辐射能量变化以及将两者分离出来的理论与方法 ,进而反演介质的温度和应力 ;
短句来源
     Influence of the Hole-Side Plastic Deformation as a Result of the Stress Concentration on the Accuracy of Residual Welding Stress Measurement by the Small Blind Hole Relaxation Method and its Elimination
     由应力集中引起的孔边塑性变形对小孔松弛法测定焊接残余应力精度的影响及其修正方法
短句来源
     In this paper, a fatigue life prediction model considering the interaction of loading sequence, taking stress ratio and the plastic zone size near crack tip as main parameters in calculation of the crack opening ratio, has been proposed.
     提出了一个由应力比和裂纹尖端约束及塑性区尺寸为主要参数计算裂纹张开比,来考查载荷相互作用下疲劳裂纹扩展寿命的计算模型。
短句来源
     The hot spot stress(strain) amplitude distribution of submarines or submersibles can be derived through corresponding transform based on the relationship between stress(strain) and its diving depth.
     潜艇疲劳热点部位的应力(应变)幅值分布,可由应力(应变)和潜深的关系通过相应的变换得到。
短句来源
     A General Method for Computing Displacement Components from the Stress Function in Plane Problems of Elasticity
     弹性理论平面问题中由应力函数积分位移分量的一般方法
短句来源
更多       
  相似匹配句对
     Isodyne Method proposed by J.
     J.
短句来源
     The power spectrum law's mode of noise established by J.
     J.
短句来源
     HORIZONTAL STRESSES IN THE EARTH'S CRUST CAUSED BY GRAVITY AND TEMPERATURE EFFECT
     重力和温度变化引起的地壳水平应力
短句来源
     Theboundary stress can be get by the PE.
     已知的边界应力光弹性实验给出。
短句来源
     Stress Chemistry
     应力化学
短句来源
查询“由应力”译词为用户自定义的双语例句

    我想查看译文中含有:的双语例句
例句
为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。
  by stress
In cubs of both sexes, the gonad weights and ovarian estradiol production were decreased by stress.
      
There has been an increase in the breakdown hazard of gas trunk pipelines (GTPs) caused by stress-corrosion cracking (SCC) in their tube metal.
      
Contribution of Photorespiration to Changes of Carbon Isotope Characteristics in Plants Affected by Stress Factors
      
The essence of the proposed method consists in determining the difference in the radius vectors of the optical indicatrix perturbed by stress and the free optical indicatrix.
      
At 315 K, an internal-friction peak was revealed, which is explained by stress relaxation at the boundaries of the T'-phase domains.
      
更多          


A general theory on the realistic stress space of solids was formulated in a previous paper. In this paper, the bell stress spaces of several metals are compared, the concept of "efficiency of plastic deformation" is introduced and formulated, and the locus of deformation is discussed in connection with the theory of bell stress space. The main concepts of this paper are:

前文[1]综合四理论[2],[3],[4],[5]构成固体现实应力空间之一初步理论,大体反映固态静力学性质,对金属较对非金属固体反映得当,后者受范形变曲面有异于弥氏圆柱。总起来看,前文仅涉及原则概念,未触及具体问题。为使此理论对金属压力加工及材料试验研究有所帮助,本文进一步研究几个问题: 1)由应力空间图形比较不同金属的静力学性质; 2)受范形变效率及其计算; 3)形变过程之轨迹;并得到一定数量或质量上的结论。 同时,附带对前文[1]中一个实验记录图的错误作修正,包括在附录内。

A method which enables us to calculate the directions of principal stresses directly from the functions is shown. A procedure which enables us to calculate the solution of plane elasticity problem based only on photoelaslic isochromatic pattern is established. The procedure is explained in the following diagram:The methods used to find the results in steps I, II, ②, ④ to ⑤ are well known. In this paper it is shown how step ③ is carried out by numerically solving partial differential equations (8), (9):

假设弹性力学平面问题中的主应力差函数q(x,y)已由应力光图试验确定。以此为基本数据,根据给定的载荷及边界条件,利用数值解法道接求出主应力之和及主应力方向,再求出σ_1,σ_2,θ,这是Fppl方法的一种改进。由于这方法是以准确度高的实验数据q(x,y)为出发点来求问题的完全解,所以数值计算的误差可以减小。

The paper discusses the conditioning and stabilization of austenite during tempering, and the suggested new tempering process based upon the results of research on high speed steels. The effect of conditioning of austenite, expressed in term of the M' temperature at which the retained austenite transforms to martensite during cooling, depends upon the temperature and duration of tempering. On step tempering, i.e., holding at a higher temperature followed by a lower one (but above a certain temperature T_c),...

The paper discusses the conditioning and stabilization of austenite during tempering, and the suggested new tempering process based upon the results of research on high speed steels. The effect of conditioning of austenite, expressed in term of the M' temperature at which the retained austenite transforms to martensite during cooling, depends upon the temperature and duration of tempering. On step tempering, i.e., holding at a higher temperature followed by a lower one (but above a certain temperature T_c), the effect of conditioning is additive and sometimes equals or exceeds that of tempering only at the higher temperature with identical duration. The amount of retained austenite transformed after optimum step tempering (e. g., 560℃ holding followed by 550℃ holding) is similar to that after multiple tempering process, but the tempering time is shortened. The M' temperature falls with the increasing amount of retained austenite and varies with the carbon content of austenite. Holding at temperatures below T_c and above M' causes a marked effect on the stabilization of austenite. The degree of stabilization and the initial rate of stabilization decrease with the increasing holding temperature. But the maximum amount of austenite stabilized increases with the holding temperature when the holding temperature is below M'. It is suggested that the stabilization of austenite during tempering is chiefly due to the reduction of stresses that promote the growth of martensite embryos. The conditioning may be regarded as a reversed process of stabilization and the following changes are suggested: the rearrangement of random dislocations, the formation of dislocation loops at α-γ phase boundaries and the removal of atmospheres formed from vacancies and solute atoms. A new tempering process consisting of step tempering followed by a normal tempering is suggested, e.g., holding at 590℃ for 25 minutes, then at 550°C for 25 minutes, and finally tempering at 560℃ for 60 minutes. The amount of austenite transformation, the mechanical properties and the cutting abilities of the high speed steel treated with the new process are comparable with those obtained by traditional multiple tempering. An optimum tempering process for reducing the deformation of tools can also be designed by the application of the stabilization of austenite. The total tempering durations are shortened in both cases.

论述了高速钢回火时奥氏体的催化作用和稳定化现象的工作,以及根据研究结果所拟定的回火新工艺.奥氏体催化作用的效果以冷却过程中残余奥氏体转变为马氏体的温度M′来表示.催化作用的效果决定于回火的溫度和时间. 先经高溫保溫又在较低溫度(但在一定溫度T_c以上)保溫(分级回火),则催化作用不但具有迭加性,或和高溫同样时间的效果相等,而且有时超过高溫保溫的效果.高溫保溫有时还能促使低溫时的催化作用.经适当分级回火后(例如先经560℃保温又在550℃保溫),残余奥氏体转变为马氏体的数量能和多次回火后相比拟,但所需总时间却能大为缩短. M′溫度随钢內残余奥氏体量的增加而降低,并随奥氏体內含碳量而改变. 在T-c溫度以下、M′溫度以上停留,奥氏体的稳定化作用(M′值的降低)极为显著.稳定化的程度(△M′)因停留时间的增长而增加,一直达到一定的饱和值.最大稳定化的程度以及稳定化开始的速度因保溫溫度的升高而减小.在M′溫度以下保溫,其最大的奥氏体稳定量因保溫溫度的升高而增加.回火时奥氏体的稳定化现象可能主要由应力的减小所引起的,这些应力在冷却时有助于马氏体核胚的扩展. 催化作用可认为是稳定化的可逆过程,它应该包括下列过...

论述了高速钢回火时奥氏体的催化作用和稳定化现象的工作,以及根据研究结果所拟定的回火新工艺.奥氏体催化作用的效果以冷却过程中残余奥氏体转变为马氏体的温度M′来表示.催化作用的效果决定于回火的溫度和时间. 先经高溫保溫又在较低溫度(但在一定溫度T_c以上)保溫(分级回火),则催化作用不但具有迭加性,或和高溫同样时间的效果相等,而且有时超过高溫保溫的效果.高溫保溫有时还能促使低溫时的催化作用.经适当分级回火后(例如先经560℃保温又在550℃保溫),残余奥氏体转变为马氏体的数量能和多次回火后相比拟,但所需总时间却能大为缩短. M′溫度随钢內残余奥氏体量的增加而降低,并随奥氏体內含碳量而改变. 在T-c溫度以下、M′溫度以上停留,奥氏体的稳定化作用(M′值的降低)极为显著.稳定化的程度(△M′)因停留时间的增长而增加,一直达到一定的饱和值.最大稳定化的程度以及稳定化开始的速度因保溫溫度的升高而减小.在M′溫度以下保溫,其最大的奥氏体稳定量因保溫溫度的升高而增加.回火时奥氏体的稳定化现象可能主要由应力的减小所引起的,这些应力在冷却时有助于马氏体核胚的扩展. 催化作用可认为是稳定化的可逆过程,它应该包括下列过程:无序分布位错的重新排列,α-γ相交界面位错圈的形成,以及空位和溶质原子所形成的气团的消除. 本文作者建议一种高速钢回火的新工艺——分级回火并加一次普通回火,例如先经590℃保溫25分钟,又在550℃保溫25分钟(分级回火)并加一次560℃回火60分钟.高速钢经这种回火工艺处理后,其奥氏体的转变量、力学性质及切削性能均能和三次经典回火工艺相比拟,但回火的总时间能大为缩短. 应用回火时奥氏体稳定化的原理,可以选择一适当的回火工艺以減少回火时工具的变形,这些工艺所需的时间较现有的工艺缩短很多.

 
<< 更多相关文摘    
图标索引 相关查询

 


 
CNKI小工具
在英文学术搜索中查有关由应力的内容
在知识搜索中查有关由应力的内容
在数字搜索中查有关由应力的内容
在概念知识元中查有关由应力的内容
在学术趋势中查有关由应力的内容
 
 

CNKI主页设CNKI翻译助手为主页 | 收藏CNKI翻译助手 | 广告服务 | 英文学术搜索
版权图标  2008 CNKI-中国知网
京ICP证040431号 互联网出版许可证 新出网证(京)字008号
北京市公安局海淀分局 备案号:110 1081725
版权图标 2008中国知网(cnki) 中国学术期刊(光盘版)电子杂志社