Results 11 to 20 of about 1,427 (180)
Detection of Multiple Cracks in Four-Point Bending Tests Using the Coda Wave Interferometry Method [PDF]
Sensors, 2020 Joyraj Chakraborty +2 more
exaly +2 more sources
Journal of Civil Structural Health MonitoringAbstract The quantitative evaluation of bolt pre-load is crucial for the maintenance and prevention of accidents in bolt-connected structures. This study introduces the coda wave interferometry (CWI) method and the nonlinear coda wave interferometry (NCWI) method for quantitative evaluation of bolt pre-load.
, Samali Bijan, Shanchang Yi
exaly +2 more sources
Coda wave interferometry for monitoring the fracture process of concrete beams under bending test [PDF]
Bulletin of the Polish Academy of Sciences: Technical Sciences, 2023 Early detection of damage is necessary for the safe and reliable use of civil engineering structures made of concrete. Recently, the identification of micro-cracks in concrete has become an area of growing interest, especially when it comes to using wave-
Magdalena Knak +2 more
doaj +1 more source
Ultrasonic Coda Wave Experiment and Simulation of Concrete Damage Process under Uniaxial Compression
Buildings, 2022 Using the coda wave interferometry (CWI) method to obtain the ultrasonic coda wave characteristics of loaded concrete is an important method to evaluate the mechanical response of concrete.
Yameng He +6 more
doaj +1 more source
Applied Sciences, 2022 Coda wave interferometry (CWI) has been used to measure the relative wave-velocity change (dV/V) caused by small changes in materials. This study uses the stretching processing technique which has been used for CWI analysis to investigate velocity ...
Bibo Zhong, Jinying Zhu
doaj +1 more source
Phase Statistics of Seismic Coda Waves [PDF]
Physical Review Letters, 2009 We report the analysis of the statistics of the phase fluctuations in the coda of earthquakes recorded during a temporary experiment deployed at Pinyon Flats Observatory, California. The practical measurement of the phase is discussed and the main pitfalls are underlined.
Anache-Ménier, D. +2 more
openaire +4 more sources
High-frequency S and S-coda waves at ocean-bottom seismometers
Earth, Planets and Space, 2023 To clarify the characteristics of high-frequency (> 1 Hz) S and S-coda waves at ocean-bottom seismometers (OBSs), we analyzed seismograms observed at permanent OBSs and inland broadband seismometers around the Kii Peninsula in southwest Japan along the ...
Shunsuke Takemura +2 more
doaj +1 more source
Preliminary result for crustal properties derivation related to tectonics for hazard mitigation in Eastern Indonesia using Teleseismic P Coda [PDF]
E3S Web of Conferences, 2021 Eastern Indonesia is tectonically complex, formed by different plates and microplates interactions from different origins. This complexity gives geoscientists a challenge to solve the ’jigsaw’ of the complex interactions.
Sahroni Anang +4 more
doaj +1 more source
地震科学进展, 2022 Based on the event waveform data and its observation report of the 2011 Ruichang-Yangxin MS4.6 earthquake sequence processed by the double-difference method, waveform cross-correlation and coda wave interferometry, two groups of repeating earthquakes (cc≥
Yufan Guo +5 more
doaj +1 more source
Amplitude coda of classical waves in disordered media [PDF]
Physical Review E, 2002 The propagation of classical waves in the presence of a disordered medium is studied. We consider wave pulses containing a broad range of frequencies in terms of the configurationally averaged Green function of the system. Damped oscillations in the time-dependent response trailing behind the direct arrival of the pulse (coda) are predicted, the ...
Ferreira, M.S. (author) +1 more
openaire +5 more sources