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Cross-correlation-based algorithm for absolute stress evaluation in steel members using the longitudinal critically refracted wave
2018
International Journal of Distributed Sensor Networks
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In this study, a cross-correlation-based algorithm is presented for stress evaluation using the longitudinal critically refracted wave. ...
On this basis, the proposed cross-correlation-based algorithm is used to evaluate the stress of a steel member. ...
Funding The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was financially supported by the National The authors ...
doi:10.1177/1550147718803312
fatcat:4excrkbrfvhdnaaj6aglyr5sk4
Recent Advancements in Non-Destructive Testing Techniques for Structural Health Monitoring
2021
Applied Sciences
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This study mainly focuses on the scope and recent advancements of the Non-destructive Testing (NDT) application for SHM of concrete, masonry, timber and steel structures. ...
Currently, research has been conducted in order to develop non-destructive techniques for SHM to extend the lifespan of monitored structures. ...
Van Der Kooi and Hoult [52] used DOFSs to monitor strain in the members of the steel model truss. ...
doi:10.3390/app11062750
fatcat:u2j7eiekprfwzp3yysgleuop6i
STATE OF THE ART REVIEW ON BRIDGES STRUCTURAL HEALTH MONITORING (TOOLS AND INSPECTION)
2016
The International Conference on Civil and Architecture Engineering
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Traditionally, modern nondestructive evaluation techniques have been utilized to test bridges. Numerous nondestructive test procedures are available for use on bridge components. ...
Visual inspection of structural elements in bridges is the most basic approach to nondestructive evaluation. ...
IMPACT ECHO METHOD The impact-echo method is based on the use of transient stress (sound) waves for nondestructive evaluation of structures, particularly reinforced concrete structures. ...
doi:10.21608/iccae.2016.43763
fatcat:2qkbpev7rrdgdblxnls2x2rkmy
Review: optical fiber sensors for civil engineering applications
2013
Materials and Structures
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It is believed that the State-ofthe-Art review is helpful to engineers considering the use of OFS in their projects, and can facilitate the wider application of OFS technologies in construction industry ...
In this paper, which is resulting from the work of the RILEM technical committee "Optical fiber sensors for civil engineering applications", different kinds of sensing techniques, including change of light ...
The EFPI strain wave sensors detected the wave propagation from a low strain impact clearly and correlated well to the RSG signals. ...
doi:10.1617/s11527-013-0201-7
fatcat:wv2vanhqdjfejfip3xjbysee4u
Development of a Bridge Weigh-in-Motion Sensor: Performance Comparison Using Fiber Optic and Electric Resistance Strain Sensor Systems
2014
IEEE Sensors Journal
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The algorithm to process the data is based on the assumption that when a moving load is applied to a bridge this will cause the longitudinal members to bend in proportion to the product of the magnitude ...
In the case of B-WIM, these positions are based on peak stress areas established using finite element analysis (FEA). ...
doi:10.1109/jsen.2014.2332874
fatcat:twsn4nhb7bgkxabh3vzxbtj6qa
Microseismic Monitoring Developments in Hydraulic Fracture Stimulation
[chapter]
2013
Effective and Sustainable Hydraulic Fracturing
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Both hydraulic fracturing and steam injection create changes in local pore pressures and in situ stresses and thereby brittle failure in intact rock plus additional slip/shearing in naturally fractured ...
The last decade has seen a significantly increased interest in microseismic monitoring by the hydrocarbon industry due to the recent surge in unconventional resources such as shale-gas and heavy-oil plays ...
Acknowledgements The first two authors would like to thank the sponsors of the Microseismic Industry Consortium for financial support. ...
doi:10.5772/56444
fatcat:tzc4jj25pjbsnhsbdewzuwuxki
A Review of Recent Distributed Optical Fiber Sensors Applications for Civil Engineering Structural Health Monitoring
2021
Sensors
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The current work is structured in a manner that allows for the single consultation of any specific DOFS application field, i.e., laboratory experimentation, the built environment (bridges, buildings, roads ...
Beforehand, a brief section was constructed around the recent progress on the study of the strain transfer mechanisms occurring in the multi-layered sensing system inherent to any DOFS deployment (different ...
In order to improve the accuracy of the disturbing event recognition, the authors suggested the use of the Wigner bispectrum analysis combined with an extreme gradient boosting tree algorithm. ...
doi:10.3390/s21051818
pmid:33807792
pmcid:PMC7962066
fatcat:e4i6x7fxo5hcbjhzqfviywm2kq
Table of Contents
2016
Australian Journal of Primary Health
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Flow is characterized in terms of coherent vortex structures, Reynolds stress variation, turbulent cross-correlations and PDF distributions. ...
This research specifically focused on students' understand of normal stress, shear stress, normal strain, and shear strain in pure axially loaded members (columns) and pure bending members (beams). ...
doi:10.1071/pyv22n4toc
fatcat:hrwhnxdpjreslhuwi7y4edqmo4
A coupled bispectral, temporal and spatial coherence function of the pressure field, scattered from a moving sea surface
1995
Journal of the Acoustical Society of America
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The international activities in ISO/TC 43 Acoustics, and IEC/TC 29 Electro-acoustics, will also be discussed. The chairs of the respective U.S. Technical Advisory Groups for ISO/TC 43 (P. D. ...
The Chairs of the U.S. Technical Advisory Groups for ISO/TC 43 (P. D. Schomer), IEC/TC 29 (V. Nedzelnitsky), and ISO/'rc 108/SC4 (H. ...
The speed of sound in the fluid corresponded to the longitudinal velocity for steel and exceeded the speed for the outer fluid (water). ...
doi:10.1121/1.414267
fatcat:gtdrkztuvfbova3a4rdj2f7umu
Noninvasive microtomographic inspection of rough surfaces by active triangulation
2001
Laser Metrology for Precision Measurement and Inspection in Industry
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quantify the amount of residual stresses in each material layer The residual stresses profile is then determined for every 0 05 mm A controlled experiment using a bent plate is used to experimentally evaluate ...
In this technique, the object surface model is generated based on the weights and control points. These parameters are deduced by means of the genetic algorithms with simulated cross over operator. ...
Goal: For the participant to acquire basic notions of graphic programming language, in order to solve problems through software. ...
doi:10.1117/12.439209
fatcat:kc3xahntybhg5cyygebalmq7qa
Multimodal Ultrasonic Imaging for Breast Cancer Detection
2012
Archives of Acoustics
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(AE) measurements in determining the critical stresses during four-point bending of mortar beams. ...
In spite of their advantages, these factors have precluded the use of ultrasound for screening. This work approaches the ultrasound-based early detection of breast cancer with a different concept. ...
Acknowledgments The author gratefully acknowledges ideas and constructive criticism offered by Prof. Dr. U. Jekosch, Dresden and Dr. R.-D. Dominicus, Ratingen. ...
doi:10.2478/v10168-012-0033-4
fatcat:fhhbdferdfaqxcbedyoljfvtxi
A design methodology for 2D sparse NDE arrays using an efficient implementation of refracted-ray TFM
2013
2013 IEEE International Ultrasonics Symposium (IUS)
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These changes in collagen microstructure were produced using both ultrasound standing wave fields and traveling wave fields. ...
Recent advances in the field of tissue engineering include the engineering of skin, cartilage, and bladder, all of which are relatively thin tissues that can rely on diffusion for the delivery of oxygen ...
The authors acknowledge the ANR and DGA for their support under the project Metactif, grant ANR-11-ASTR-015. ...
doi:10.1109/ultsym.2013.0035
fatcat:th5znfh7y5bklfdbmhb4u6iq2i
Relevance of time‐varying properties of the first formant frequency in vowel representation
1985
Journal of the Acoustical Society of America
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rules, based on frequency of occurrence, is critical. ...
In p•rticular, "slow" response has a critical effee• when trading ratios of 4 or 5 dB are used. ...
The subject's performance is evaluated by comparing F2 curves of the produced vowels with those of the targets using cross-correlation and coherence techniques. ...
doi:10.1121/1.2023018
fatcat:3lbckbce2rglzj7zx3fp4nhiui
Theoretical and experimental investigation of the insertion loss of a dissipative muffler
1986
Journal of the Acoustical Society of America
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Thus the accurate computation of eigenray quantities can be used to evaluate broadband cross-correlation
For benchmark purposes, one must integrate the remainder over wavenumbers of interest in order ...
Based on the results of these measurements, the critical radius was calculated for different types of speakers in various areas. ...
Our measure similarity is Cm, x, the maximum of the absolute value of the cross-correlation function of two time series, and Cma x has a strong dependence on R, g, and the experimental geometry; it has ...
doi:10.1121/1.2024087
fatcat:tcee6inawvhubc6ftuk2ffhyce
Temporal integration of loudness as a function of level
1995
Journal of the Acoustical Society of America
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The method was designed to be used in Monte-Carlo studies of the effects of internal waves. ...
The results are in good agreement with the PE for 1000-kin propagation through internal waves and for 3000-km mildly varying ocean environments. ...
Thus reaching this fourth angle is too much costly in deformation amplitude and thus poorly efficient.
5pSC24. Does the perceptual magnet effect hold for the [•] category? ...
doi:10.1121/1.411567
fatcat:h52442zdrnc6zmr4ephlixbspu
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