acousticemission相关论文
Bogie is one of the most critical parts of high-speed train. It is directly related to the operation quality and safety ......
The shear behavior of granular materials plays an important role in understanding the occurrence of geological hazards.T......
Understanding the damage behavior and cracking mechanism of brittle shale is crucial for hydraulic fracturing design.In ......
Due to the significant effect of abnormal arrivals on localization accuracy,a novel acoustic emission (AE)source localiz......
Real-time monitoring dislocations,martensitic transformations and detwinning in stainless steel:Stat
Acoustic emission(AE)of 316L stainless steel with of low Ni content shows,under tension,simultane-ously three avalanche ......
基于有限元方法模拟的单轴拉伸试验,研究了具有不同孔洞位置的两种增材制造铝板的波传播特性.本文使用有限元方法获得所需的数据,......
为了研究分级加载和采动爆破扰动引起的声发射和微震活动的衰减规律,提出一种新的指数衰减(ED)模型.结果表明:分级加载和爆破扰动......
Based on mechanism of AE creation, put forward sphere cavity model, and deduced wave Equation of AE wave radiated by the......
Test study on rupture process and permeability properties of coal-rock in simulating mining stress e
A test system was designed by using a set of self-made experimental devices of coupled coal-gas in simulating mining str......
Theoretical analysis of characteristics of acoustic emission in rock failure based on statistical da
Based on statistical damage mechanics, the constitutive model of a rock under three-dimensional stress was established b......
Monitoring Damage Evolution in a Titanium Matrix Composite Shaft Under Torsion Loading Using Acousti
The damage behaviors of a titanium matrix composite shaft under torsion loading were monitored using the acoustic emissi......
In order to study the size effect on the AE rate ‘a’ value, three kinds of mix ratios were set up by different particl......
Damage Processes of Polypropylene Fiber Reinforced Mortar in Different Fiber Content Revealed by Aco
The performances of the cement-based materials can be improved by the incorporation of polypropylene fiber, but the dama......
The fiber reinforced concrete has good dynamic mechanical properties.But corresponding research lacks the dynamic damage......
This paper indicates the requirements of non-destructive testing for pressure vessels in-service,researches the propagat......
根據標準API 653[1]規定，儲槽應進行定期檢測以確保儲槽繼續使用的完整性，但該標準針對檢測方法並未加以限制，目前國際上針對儲槽底板......
Investigation on Acoustic Emission Characteristics from Corrosion of Conventional Materials of Prima
304 stainless steel,316L stainless steel and 316NG stainless steel are conventional materials of primary pipe in nuclear......
Analysis of Acoustic Emission Characteristics for FRP Composites Vessels in Hydrostatic Burst Test p
In this study,obtaining acoustic emission signals by monitoring of acoustic emission experiment process for FRP composit......
The aim of present study was to address signal responses of acoustic emission (AE),vibration and torque sensors in rolli......
声发射技术(AE)已经被广泛应用到压力容器、压力管道等检验中.声源定位在整个声发射检验与评定结果过程中起重要作用,目前这方面的......
旋转机械碰摩故障是能够产生严重危害性的常见故障之一.碰摩故障发生时会产生声发射,因此基于声发射信号诊断碰摩故障是当前研究的......
As a detailed inspection of an agricultural concrete structure in service,core samples are usually drilled out and then ......
For effective production of agricultural field,it is necessary to evaluate not only the cultivation environment but also......
Measurement ofmode I fracture characteristics,such as critical opening displacement and fracture process zone(FPZ)length......
岩石的变形破坏过程是能量积聚与耗散的过程,岩石变形破坏是能量驱动的结果.基于室内岩石力学试验及数值模拟软件,进行了5种不同加......
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声发射技术已经应用于金属和混凝土结构中, 作为探测内部裂缝的一种无损检测方法。 目前用的技术都是由压电换能器来采集声发射信......
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利用声发射方法,测定了金属材料表面喷涂陶瓷层及经激光熔覆陶瓷层与基体的结合强度,并对陶瓷层产生声发射特性进行了探讨,最后分......
通过在碳化硅纤维表面原位生长纳米线得到具有多级增强结构的碳化硅复合材料,对复合材料引入纳米线后的微观结构、弯曲强度以及损......
In this study,uniaxial and triaxial compression acoustic emission(AE)tests were implemented to investigate the AE effect......
Implications for rock instability precursors and principal stress direction from rock acoustic exper
The characteristics of rock instability precursors and the principal stress direction are very crucial for the preventio......
As a widely used measurement technique in rock mechanics,spatial correlation modeling of acoustic emission(AE) scatterin......
采用分子动力学方法研究了6H-SiC脆性切削的声发射响应.研究了原子尺度下6H-SiC的微变形和裂纹形核,同时对加工过程中的声发射源进......
通过声发射实验探讨温度对声发射定位精度的影响。采用空心半球形试件模拟常见地下结构。在火焰加热过程中,以恒定频率的脉冲信号......
To extract more in-depth information of acoustic emission(AE)signal-cloud in rock failure under triaxial compression,the......
利用声发射方法,测定了金属材料表面喷涂陶瓷层及经激光熔覆陶瓷层与基体的结合强度,并对陶瓷层产生声发射特性进行了探讨,最后分......
A study on particle breakage behavior during pile penetration process using acoustic emission source
Particle breakage is a common occurrence in granular systems when the extal stress exceeds the individual particle stren......
声发射波形包含煤岩体失稳破坏的微观细致结构特征,为了得到煤岩体在不同加载阶段更多的煤岩失稳细观结构特征,本文采用HHT方法对......
期刊
Detection of damage locations and damage steps in pile foundations using acoustic emissions with dee
The aim of this study is to propose a new detection method for determining the damage locations in pile foundations base......
煤炭地下气化是将地下煤炭通过热化学反应在原地转化为可燃气体的技术。但因为在地下，燃烧区域很难监测。本实验依据通过监测煤样加......
基于岩体稳定性监测原理,提出一种岩体微震事件的精确定位方法.该方法的特点是:①采用初次定位和修正定位的二次定位方法;②依据P......
针对现有岩体声发射监测定位系统在井下矿山应用中存在的测试线路多、易损坏问题,提出了改进方案,阐述了全新的系统结构及实现方式......
利用声发射技术对45钢、GCr15钢和T12钢三种材料进行连续冷却条件下马氏体相变监测试验,并以相变声发射参量分布及波形特性为基础,......
高压天然气分配管线上对接焊缝很多，装有流量计，截止阀门等。总管排量每日１００ｋｍ＾３，利用声发射技术进行在线监测的结果表明，没有发现明显的材料......
对燃煤流化床内声发射进行实验和理论分析，将床内声源分为单极子声源，双极子声源和四极子声源，从声射频谱特征确定了气固相对运动（双极......
采用声发射技术监测了受循环剪切载荷作用的钢腹板桁架疲劳过程三阶段的声发射特性曲线。基于断裂力学和实验结果提出了一个裂纹稳......
