Metal fracture

A Quantitative Analysis of Metal Fracture Based on the Fractal Theory

基于分形理论的金属断口定量分析

Three Dimensional Reconstruction of Metal Fracture Surface by Computer Image Processing

用计算机图象处理技术重建三维金属断口

Image processing techniques in analysis of metal fracture surface

图像处理技术与金属断口分析

Research of metal fracture surface is an important part of fracture discipline .

研究金属的断裂表面，是断裂学科的重要组成部分。

Recognition and classification of metal fracture surface models based on Wavelet Transform

基于小波变换的金属断口模式识别与分类

Application State of Fractal Theory in Metal Fracture

分形理论在金属断裂方面应用的进展

Research of Fractal Properties of Metal Fracture Surface

金属断裂表面分形特性初探

Recognition and Classification of Metal Fracture Surface Images Based on Syntax Pattern Recognition

金属断口图像句法模式识别与分类方法

Recognition of metal fracture surface morphologies based on the fuzzy texture spectrum

基于不确定性纹理谱的金属断口形貌识别

Study on differential curve of metal fracture profile fractal chart

金属断口纵剖面线分形图的微分曲线研究

The stereoscopic analysis method of metal fracture fractal

金属断口分形的体视分析法

Interpolation Method of 3D Reconstructing Metal Fracture Fractal

基于金属断口形貌三维重建中的插值方法

The pattern recognition and classification of metal fracture surface images is one of the important contents in automatic diagnosis of fracture components .

金属断口模式识别与分类是断裂构件智能化诊断的重要内容。

A new method of recognition and classification based on syntax pattern recognition theory was presented , which towards images of metal fracture surface .

针对金属断口图像，提出了一种基于句法模式识别理论的分类方法。

The work of the paper shows that it is only by the detail study of the stress distribution that the metal fracture can be understood deeply .

本文计算表明，只有仔细地研究细观过程，才能准确理解金属材料的断裂过程。

According to the experiment method of determination of metal fracture toughness , J R - curves are obtained and compared with that calculated using recursion .

根据JR阻力曲线确定金属材料延性断裂韧度的试验方法测得JR曲线，并与递推法比较，结果令人满意。

301 metal fracture images provided by Beijing Institute of Aeronautical Materials were processed in the experiment . Localization accurate rate and correct recognition rate reaches 94 % .

通过实验对北京航空材料研究院提供的301张金属断口图像进行处理，最终定位准确率和正确识别率达到94%，同时对少量不能准确定位和识别的图片进行噪声源分析。

Some in-site vibrating test and metal fracture analysis have been done to reveal that the crack of the U-shaped bolts is fatigue failure and some reference for designer is put forward .

结合桥梁&人行道系统的现场振动测试和螺栓试样断口分析结果，指出既有桥上发生的U型螺栓破断属于疲劳破坏，并提出了改进意见。

But most of these measurement methods take metal fracture as the measuring object , destroy the metal fracture surface as the base , also these measuring methods have high requirement on the equipment , period , capital and personal ability .

但是，这些测量方法多数都是以金属断口作为测量对象，以破坏金属断口为前提，并且这些测量方法在设备、周期、资金和个人能力上都有较高的要求。

An Experiment Research on Metal Material Fracture Mechanism in Explosive Loading

爆炸载荷下金属材料断裂机制的实验研究

In the paper , a new model of plastic initial crack is proposed after analyzing the crack tip physical graph of metal plastic fracture .

通过对金属韧性断裂的裂尖物理图象分析，提出了一种新的韧性启裂模型；

Some criteria of metal ductile fracture are introduced , including empirical criteria derived from experiments and criteria based on continuum damage mechanics .

介绍了一些对金属延性断裂进行判断的准则，包括基于试验的经验性准则以及连续损伤力学方法建立的准则。

OBJECTIVE : To observe the effect of common metal bone fracture plate and HA coated titanium plate on the restoration of osseous defect .

目的：观察普通金属接骨板、HA涂层钛板对骨缺损修复的影响。

It is important for 3D Reconstruction of SEM of metal fatigued fracture to study on material fracture which makes quantitatively analysis of the fracture more accurately .

金属断口SEM图像的3维重建能更精确地定量分析断口，因而在材料断裂研究中具有重要意义。

Metal toughness fracture meso-study

金属韧性断裂的细观研究

BACKGROUND : Common metal bone fracture plate had powerful stress force shelter reaction in fixed bone segments and moreover , is has no induction and guiding reactions in bone growth .

背景：普通金属接骨板对固定骨段具有强大的应力遮挡作用，且对骨组织生长无诱导及引导作用。

Objective To investigate the difference of biodegradable material , a new kind of material , and conventional metal material in fracture healing .

目的探讨生物降解材料与传统金属材料对骨折愈合影响的差异。

Effects of the microstructure of weld metal on the fracture toughness of 18ni ( 250 ) maraging steel

18Ni（250）马氏体时效钢焊缝显微组织对断裂韧性的影响

Strength and toughness mechanism of ultra-high hardness surfacing materials are brought forward according to the cracking in deposited metal and impact fracture observed .

在对堆敷金属中的裂纹、冲击断口形貌观察分析的基础上，提出了超高硬度堆焊材料的强韧化机理。

This paper analysed the pattern and composition of residual metal in diamond fracture surface by ways of Scanning Electron Microscope ( SEM ) and Energy Dispersion Spectrum ( EDS ) .

采用扫描电镜（SEM）和能谱（EDS）分析方法，分析了国内六种代表性的金刚石断面上残留触媒的形态及成分。