Damage Characterisation of Inhomogeneous Materials: Experiments and Numerical Simulations of Wave Propagation

Aggelis, Dimitrios G.

doi:10.1111/j.1475-1305.2009.00721.x

Cited by 8 publications

(6 citation statements)

References 22 publications

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“…They determined the effect of multilayered loading on the URM wall on basis of the macro model and proposed interaction curves [15]. This cluster proposed numerical models to investigate the behaviour of the masonry subjected to yield forces [16]. Cluster #3 (Masonry bridges) also emphasized the preparation of numerical models to examine the effect of repair materials on the components of structures.…”

Section: Abstract Co-vision Network Analysismentioning

confidence: 99%

See 1 more Smart Citation

Bond strength of substrate with repair material for masonry structures

Saggu,

Pal,

Dev

2023

J. Comput. Mech. Manag

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Masonry infrastructure repair is a daunting challenge. The short intervention and limited resources have led to the loss of novel rendering and finishing materials. In the present study, the bibliometric analysis is conducted for period 2003 to 2022. Co-cited reference analysis, keywords, cluster, and temporal evolution were used for analysis using Citespace software. Additionally, summary of suitable content showed that major challenges in this field are disparities in the properties of old mortar and new materials and the lack of documents to understand nature and methodology of construction. Based on the analysis and content review, a suggestive technique is proposed inculcating four aspects: Finite element analysis, preparing numerical models, improvised techniques for bonding mechanisms and understanding mechanical attributes.

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Section: Abstract Co-vision Network Analysismentioning

confidence: 99%

“…Missing Documentation: Significant documents and drawings detailing the renderings used in old structures are often missing [16]. The inadequate intervention in ancient structures, combined with a lack of resources for modern techniques, has led to the loss of novel finishings and rendering [49].…”

Section: Bond Of Materials With Repairs At Interfacementioning

confidence: 99%

Bond strength of substrate with repair material for masonry structures

Saggu,

Pal,

Dev

2023

J. Comput. Mech. Manag

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“…One hundred and eighty AE (180 AE) events are chosen to evaluate source location accuracy in traditional TOA location algorithm and AE tomography location algorithm, respectively. And ME (mean error), MR (mean residual), WAE (weight average error), SD (standard deviation), and WASD (weight average standard deviation) are considered to be the indexes to evaluate source location error [10][11][12]. The error results are shown in Table 1.…”

Section: Compared With Toa Algorithmmentioning

confidence: 99%

Visualization Location in Q235B Steel Structure by Using the Acoustic Emission Tomography

Jiang¹,

Yang²,

Xu³

et al. 2017

JMEA

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AET (acoustic emission tomography) is a new visualization location method for inspecting and locating the internal damages in the structures. In this paper, the AET is applied to detect and visualize damage source locations in the Q235B steel structure to validate its effectiveness. Firstly, the ABAQUS/Explicit simulation model of the steel structure with one damaged circle in its center is built. And then, the simulated AE signals are obtained to establish the AE tomography. The results show that the damaged circle in the created model can be visualized clearly with the AET in its original location. Finally, the damage source location based on AET is compared with the traditional TOA (time of arrival) location method, and the better location accuracy is obtained. And this fact that further illustrates the AET has a great potential in the application of structure damage detection.

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“…In addition, to satisfy the requirement of investigated object, a small concrete plate with 400 * 400 * 100 mm 3 is built. As this specimen is relatively small, some simplification and reasonable assumptions are made in the numerical simulation process; for example, concrete specimen is homogeneous, isotropic, and incompressible [21,22]. Thus, main parameters of the concrete structure model are obtained as shown in Table 1.…”

Section: Fe Model Of Concrete Structurementioning

confidence: 99%

Simulation and Experimental Investigation on the AE Tomography to Improve AE Source Location in the Concrete Structure

Jiang

et al. 2014

Mathematical Problems in Engineering

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Acoustic emission (AE) tomography, which is based on the time-travel tomography with AE events as its signal sources, is a new visualization tool for inspecting and locating the internal damages in the structures. In this paper, AE tomography is applied to examine a man-made damage in a typical heterogeneous concrete structure to validate its effectiveness. Firstly, the finite element (ABAQUS/Explicit) simulation model of the concrete structure with one damaged circle in its center is built, and the simulated AE signals are obtained to establish the AE tomography. The results show that the damaged circle in the created model can be visualized clearly with the AE tomography in its original location. Secondly, the concrete specimen based on the FE model is fabricated, and the pencil lead break (PLB) signal is taken as the exciting source for AE tomography. It is shown that the experimental results have good consistency with the FE simulation results, which also verifies the feasibility of the finite element model for AE tomography. Finally, the damage source location based on AE tomography is compared with the traditional time of arrival (TOA) location method, and the better location accuracy is obtained with the AE tomography. The research results indicate that AE tomography has great potential in the application of structure damage detection.

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Damage Characterisation of Inhomogeneous Materials: Experiments and Numerical Simulations of Wave Propagation

Cited by 8 publications

References 22 publications

Bond strength of substrate with repair material for masonry structures

Bond strength of substrate with repair material for masonry structures

Visualization Location in Q235B Steel Structure by Using the Acoustic Emission Tomography

Simulation and Experimental Investigation on the AE Tomography to Improve AE Source Location in the Concrete Structure

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