Acoustic emission monitoring of bridges: Review and case studies

Nair, Archana; Cai, C.S.

doi:10.1016/j.engstruct.2010.02.020

Cited by 416 publications

(203 citation statements)

References 23 publications

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“…Many AEs arise during damage processes within structures. These AEs are referred to as primary ones while the secondary AEs are the others induced from external sources, such as impacts [47].…”

Section: Acoustic Emission Methodsmentioning

confidence: 99%

Structural Health Monitoring for Composite Materials

Cai¹,

Qiu²,

Yuan³

et al. 2012

Composites and Their Applications

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Section: Acoustic Emission Methodsmentioning

confidence: 99%

Structural Health Monitoring for Composite Materials

Cai¹,

Qiu²,

Yuan³

et al. 2012

Composites and Their Applications

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“…In recent years much attention has been paid to issues of diagnostics and monitoring of building structures in service, which is related to their durability and reliability [1][2][3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Monitoring of active destructive processes as a diagnostic tool for the structure technical state evaluation

Goszczyńska¹,

Świt²,

Trąmpczyński³

2013

Bulletin of the Polish Academy of Sciences: Technical Sciences

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Abstract. In this paper, a global monitoring system based on the measurement of acoustic emission (AE) due to active deterioration processes is presented. This allows us to examine the entire volume of an element and to locate and identify the type and the dynamics of the deterioration processes under service conditions. The resulting data are used to determine and locate the damage processes that are dangerous in construction made of pre-stress concrete, steel and fiber glass and to assess the general condition of the structure.

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“…However, more advanced signal processing techniques, such as wavelet transform, pattern recognition or classification methods, are needed in order to assess in a better manner the integrity of the structure (Chacon et al 2015). This technique has been used in rotating machines and metallic structures, such as tanks or bridges with good results (Rauscher 2004;Nair and Cai 2010;Chacon et al 2014). In wind turbine blades, AE has been applied in different investigations where it has been able to detect typical composite damages such as delamination or debonding Zhou et al 2015).…”

Section: Acoustic Emissionmentioning

confidence: 99%

Damage Sensing in Blades

Crespo

2016

Mare-Wint

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This chapter is divided into three parts; the problem, possible solutions and the chosen option to address the problem, which is my PhD topic within the project MAREWINT. So firstly, the chapter presents an overview of the typical damages that a wind turbine blade can suffer during its life operation. Then, a review of different Structural Health Monitoring (SHM) techniques which are currently being investigated for wind turbine blades is presented. Finally, the chapter provides the state-of-the-art of Guided Wave Technology in composite materials; where different aspects of this SHM technique are explained in more detail. IntroductionWind energy is an important renewable energy source which has gained high relevance during the last decades. Different countries have released plans to invest in wind energy in the future years; such as the USA that will generate 20 % of the country's electricity from wind power by 2030 or Denmark that have set the targets of producing 50 % of the power from the wind by 2020 and also of making Denmark completely free of dependence on fossil fuels by 2050. So, the use of wind power is not expected to decrease within the next decade (Márquez et al. 2012). The trend is to manufacture bigger wind turbines and deploy them offshore. These new wind turbines have around 6 MW power output, 120-metre height tower and 80-metre long blades. They are designed to be operating in rough conditions in difficult-to-reach areas. Therefore, the deployment of Structural Health Monitoring (SHM) techniques becomes essential in order to assess remotely the integrity of the structure. The advantages of using these techniques are many (Schulz and Sundaresan 2006), such as reducing expensive costs for periodic inspections of turbines which are hard to reach, prevention of unnecessary replacement of components based on time of use, or minimizing down time and frequency of sudden breakdowns.

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Acoustic emission monitoring of bridges: Review and case studies

Cited by 416 publications

References 23 publications

Structural Health Monitoring for Composite Materials

Structural Health Monitoring for Composite Materials

Monitoring of active destructive processes as a diagnostic tool for the structure technical state evaluation

Damage Sensing in Blades

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