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空洞演化
相关语句
  cavitation evolution
     The Metal Superplastic Deformation Theory Considering Cavitation Evolution Effect
     考虑空洞演化效应的金属超塑性变形理论
短句来源
     In this paper,the fundamcntal problems in the mctal superplastic deformation theory consldering the cavitation evolution effect are introduced in brief.
     对考虑空洞演化效应的金属起塑性变形理论中的基本问题作了扼要介绍。
短句来源
  “空洞演化”译为未确定词的双语例句
     An Improved Model for Cavity Evolution Using Variable Strain-Rate Sensitivity
     超塑变形时的变m值空洞演化模型
短句来源
     In the superplastic deformation of Al Mg alloys, an abnormal type of cavity evolution is found. Cavity growth manifests "wave type" with the increasing true strain.
     在Al Mg合金超塑变形过程中 ,发现了一类反常的空洞演化规律 ,也就是空洞随真应变的增加而呈现“波浪型”的演化规律。
短句来源
     Based on the analyses of the microstructures and the mechanical curves of deformation, dynamic recrystallization is suggested as the main reason of this special evolution type, that is, dynamic recrystallization can restrain the growth of cavity .
     通过对微观组织特征和力学性能曲线的综合分析 ,认为这种特殊的空洞演化规律 ,主要是动态再结晶所致 ,也就是动态再结晶对空洞生长具有抑制作用。
短句来源
     Through the quantitative graph analysis of cavity , a new model of the cavity evolution was presented. [
     通过对空洞形貌的定量图像分析 ,还得到了新的空洞演化模型
短句来源
     Based on digital speckle correlation method(DSCM),a novel video control experimental technique was developed for assessing tensile experiments. A series of tensile experiments on SnAgCu solder alloy was conducted under various constant true strain rates ranging from 10~(-5) to 10~(-3) s~(-1) and at 25℃ to 150℃. And the true stress-true strain relations and void damage evaluation law were achieved.
     开发新的基于数字散斑相关方法(DSCM)的摄像机控制拉伸实验方法,在温度25-150°C和应变率10-5-10-3s-1范围内进行一系列的恒应变率拉伸实验,得到真应力-真应变关系和空洞演化规律.
短句来源
  相似匹配句对
     Evolution of stars
     恒星演化
短句来源
     Exploring Cavity
     空洞探测
短句来源
     THE EVOLUTION, OF MINERALS
     矿物演化
短句来源
     Detection of Cavity
     空洞探测
短句来源
     The Metal Superplastic Deformation Theory Considering Cavitation Evolution Effect
     考虑空洞演化效应的金属超塑性变形理论
短句来源
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The general problem in various fracture processes microcracks or voids evolution has been investigated by employing non-equilibrium statistical concept and method. The kinetic equation of microcrack evolution is derived from multivariated master equation describing the process of microcracks evolution. The way how to connect micro mechanism with macro process is indicated. And the inherent properties of distrubution function of microcracks is discussed.

本文用非平衡统计的概念和方法探讨了各种断裂过程中的共同问题——微裂纹或微空洞的演化。文中从描述微裂纹演化过程的多元主方程出发,导出了微裂纹演化动力学方程,指出了微观机理与宏观过程相结合的途径,讨论了微裂纹分布函数应有的性质。

Based on microcrack evolution equation and combined with the microcrack growth rale and the nuclealion rale obtained from microscopic mechanism and the principle of the minimum strength,the microcrack distribution function, fracture probabilily, reliability, failure rate, kinetic equation of damage-fracture, statistical distribution function and statistical average value of various fracture-related macromechanical quantities such as strength, toughness and life etc arc derived in a unified fashion. This theory...

Based on microcrack evolution equation and combined with the microcrack growth rale and the nuclealion rale obtained from microscopic mechanism and the principle of the minimum strength,the microcrack distribution function, fracture probabilily, reliability, failure rate, kinetic equation of damage-fracture, statistical distribution function and statistical average value of various fracture-related macromechanical quantities such as strength, toughness and life etc arc derived in a unified fashion. This theory can be widely applied to various kinds of fracture such as brittle fracture, fatigue, delayed fracture, and environmental fracture of metals and structural ceramics. This paper is a brief overview on the above-mentioned main idea, method and result through the discussion of brittle, fatigue and delayed fracture of metals.

非平衡统计断裂力学是用非平衡统计概念和方法结合微裂纹(或微空洞)演化动力学从微观机理推导出宏观力学量的断裂理论.它以微裂纹演化方程为核心,结合从微观机理求得的微裂纹长大速率和成核率以及最小强度原理,统一导出微裂纹分布函数、断裂概率、可靠性、失效率、损伤断裂动力学方程、强度、韧度和寿命等各种与断裂有关的力学量的统计分布函数、统计平均值和统计涨落.本文理论可广泛适用于金属和结构陶瓷的脆性、疲劳、延时和环境断裂等多种断裂类型.本文通过金属的脆性、疲劳和延时断裂,扼要综述了上述主要思想、方法和结果.

The environmental modulation on the local number density of galaxies has been discussed. We found that the modulation is not strong enough to interpret the formation of voids. We also discussed the evolution of the voids and found that the shell crossing or shell density nonlinearly increasing are too late to happen for standard CDM fluctuation spectrum. The interaction of galaxies is important to cause the starbursts in galaxies and in order to have the interaction the existense of groups of galaxies or the...

The environmental modulation on the local number density of galaxies has been discussed. We found that the modulation is not strong enough to interpret the formation of voids. We also discussed the evolution of the voids and found that the shell crossing or shell density nonlinearly increasing are too late to happen for standard CDM fluctuation spectrum. The interaction of galaxies is important to cause the starbursts in galaxies and in order to have the interaction the existense of groups of galaxies or the clusters of galaxies may be necessary for galaxies to form and become visible. If it is so the environmental modulation on the local number density of groups or clusters of galaxies could be strong enough to form 30─60 Mpc voids.

本文讨论了初始扰动谱中大尺度负密度扰动对星系尺度扰动峰值的局域密度的影响,以及空洞演化中边界壳层非线性发展的作用。结果表明它们并不能解释空洞的形成。但考虑星系相互作用在可见星系形成中的关键作用,把星系群与星系团的存在作为形成的必要条件时,可以用负密度扰动对星系团和星系群的局域密度的调制,解释30─60Mpc的空洞形成。对于更大尺度空洞的形成,则必须考虑对标准冷暗物质模型谱作出修正。

 
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