Zobrazeno 1 - 10
of 226
pro vyhledávání: '"Masayasu Ohtsu"'
Publikováno v:
Applied Sciences, Vol 10, Iss 8, p 2729 (2020)
In this study, to visualize damage and defects, such as cracks and voids in concrete, the SIBIE (stack imaging of spectral amplitudes based on impact echo) procedure is applied and numerically improved to construct a three-dimensional (3D) model of e
Externí odkaz:
https://doaj.org/article/1632d1dd9e094e019868f90ebea1d06d
Autor:
Dimitrios G. Aggelis, Masayasu Ohtsu
Publikováno v:
Springer Tracts in Civil Engineering ISBN: 9783030679354
Physically, fracture in a material takes place as the release of stored strain energy, which is consumed by nucleating new external surfaces (cracks) and emitting elastic waves. The elastic waves propagate inside the material and are detected by an a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::258cf284667c9145b94ca1a3b6ae7450
https://doi.org/10.1007/978-3-030-67936-1_3
https://doi.org/10.1007/978-3-030-67936-1_3
Autor:
Masayasu Ohtsu
Publikováno v:
Springer Tracts in Civil Engineering ISBN: 9783030679354
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42e6c0e0ea976d4759419ac15d784c52
https://doi.org/10.1007/978-3-030-67936-1_7
https://doi.org/10.1007/978-3-030-67936-1_7
Autor:
Masayasu Ohtsu
Publikováno v:
Springer Tracts in Civil Engineering ISBN: 9783030679354
Acoustic Emission Testing ISBN: 9783540698951
Acoustic Emission Testing ISBN: 9783540698951
In seismology, linear inversion techniques were proposed to determine the moment tensor component in both time and frequency domains (Stump & Johnson 1977) and (Kanamori & Given 1981). Although all components of the moment tensor must be determined,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b7bffcaeb50b81f393b850db3f336ae
https://doi.org/10.1007/978-3-030-67936-1_8
https://doi.org/10.1007/978-3-030-67936-1_8
Autor:
Dimitrios G. Aggelis, Masayasu Ohtsu
Publikováno v:
Springer Tracts in Civil Engineering ISBN: 9783030679354
AE techniques have been extensively studied in concrete engineering since early 1950s. Nowadays, several monitoring tasks are casually performed in large scale, since recently AE tests in concrete are standardized. Others are being developed in labor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d53190bc3e60d1c26a56a5dd7e2c90a3
https://doi.org/10.1007/978-3-030-67936-1_11
https://doi.org/10.1007/978-3-030-67936-1_11
Publikováno v:
Applied Sciences, Vol 10, Iss 2729, p 2729 (2020)
Applied Sciences
Volume 10
Issue 8
Applied Sciences
Volume 10
Issue 8
In this study, to visualize damage and defects, such as cracks and voids in concrete, the SIBIE (stack imaging of spectral amplitudes based on impact echo) procedure is applied and numerically improved to construct a three-dimensional (3D) model of e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0b123124b2babbd5c9d06a5bb981b96
https://www.mdpi.com/2076-3417/10/8/2729
https://www.mdpi.com/2076-3417/10/8/2729
Autor:
Masayasu Ohtsu
Publikováno v:
Construction and Building Materials. 158:1134-1142
The demand for maintenance and repair of concrete structures in service has been critically increasing worldwide. A variety of techniques and evaluation methods for diagnosis and prognosis of the structures are extensively under development by applyi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::396c88fb9b09a14209350a2edaf50861
https://doi.org/10.1016/j.conbuildmat.2017.09.145
https://doi.org/10.1016/j.conbuildmat.2017.09.145
This book provides an introduction to Acoustic Emission Testing and its applications to different materials like concrete, steel, ceramics, geotechnical materials, polymers, biological structures and wood. Acoustic Emission Techniques (AET) technique
Publikováno v:
Construction and Building Materials. 136:619-626
The durability of concrete structures decreases easily due to such environmental effects. For effective maintenance of concrete structures, it is necessary to evaluate not only the values of mechanical properties but also the degree of damage. In thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b2a2a229256b617c8a32d74b708a9c2e
https://doi.org/10.1016/j.conbuildmat.2016.09.013
https://doi.org/10.1016/j.conbuildmat.2016.09.013