Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Andronikos Loukidis"'
Autor:
Stavros K. Kourkoulis, Christos F. Markides, Ermioni D. Pasiou, Andronikos Loukidis, Dimos Triantis
Publikováno v:
Frattura ed Integrità Strutturale, Vol 16, Iss 59, Pp 405-422 (2022)
The role of some geometrical characteristics of the notches machined in circular discs, in order to determine the mode-I fracture toughness of brittle materials, is discussed. The study is implemented both analytically and numerically. For the analyt
Externí odkaz:
https://doaj.org/article/960d3e35796c4015bee1c2d95becce87
Autor:
Dimos Triantis, Ilias Stavrakas, Andronikos Loukidis, Ermioni D. Pasiou, Stavros K. Kourkoulis
Publikováno v:
Applied Sciences, Vol 13, Iss 10, p 6261 (2023)
A novel approach for describing the acoustic activity in brittle structural materials while they are loaded mechanically at levels close to those causing macroscopic fracture is proposed. It is based on the analysis of the rate of acoustic emissions
Externí odkaz:
https://doaj.org/article/9304294c0ec5431c91f4776c0246b9cc
Autor:
Dimos Triantis, Ilias Stavrakas, Andronikos Loukidis, Ermioni D. Pasiou, Stavros K. Kourkoulis
Publikováno v:
Forces in Mechanics, Vol 7, Iss , Pp 100088- (2022)
The acoustic activity in brittle specimens submitted to mechanical loading is explored in terms of two alternative approaches. The first one is based on the Euclidean three-dimensional distance between the sources of successive acoustic events while
Externí odkaz:
https://doaj.org/article/54a4930b6ed840fb896ae0fe2c863cb5
Publikováno v:
Applied Sciences, Vol 13, Iss 5, p 3249 (2023)
Acoustic emission (AE), recorded during uniaxial compressive loading with constantly increasing stress and stepped stress increments until the fracture of prismatic marble specimens, were analyzed in terms of non-extensive statistical mechanics (NESM
Externí odkaz:
https://doaj.org/article/19af47f5015748f9903fb844ad33f7a1
Publikováno v:
Frattura ed Integrità Strutturale, Vol 16, Iss 59 (2021)
The role of some geometrical characteristics of the notches machined in circular discs, in order to determine the mode-I fracture toughness of brittle materials, is discussed. The study is implemented both analytically and numerically. For the
Externí odkaz:
https://doaj.org/article/ebac5a9454514d66a889d74308cbf81f
Autor:
Andronikos Loukidis, Dimitrios Tzagkarakis, Antonios Kyriazopoulos, Ilias Stavrakas, Dimos Triantis
Publikováno v:
Applied Sciences, Vol 13, Iss 1, p 365 (2022)
Acoustic emissions (AEs) and weak electrical signals, also known as pressure stimulated currents (PSCs), were concurrently recorded in order to investigate their behavior and detect precursory indicators when cement mortar specimens were subjected to
Externí odkaz:
https://doaj.org/article/775f6fdb6f4b4edab4c03c16196095a5
Autor:
Stavros K. Kourkoulis, Ermioni D. Pasiou, Andronikos Loukidis, Ilias Stavrakas, Dimos Triantis
Publikováno v:
Infrastructures, Vol 7, Iss 2, p 15 (2022)
The quantitative determination of the current load carrying capability of already loaded structural elements and the possibility to detect proper indices that could be considered as signals for timely warning that the load carrying capacity is exhaus
Externí odkaz:
https://doaj.org/article/2aea36e97dbf481aab36a0610ffc4b17
Autor:
Andronikos Loukidis, Dimos Triantis, Ilias Stavrakas, Ermioni D. Pasiou, Stavros K. Kourkoulis
Publikováno v:
Applied Sciences, Vol 12, Iss 1, p 231 (2021)
The acoustic activity developed in marble specimens under various loading schemes is explored in terms of the recently introduced F-function. The novelty of the study is that instead of describing the temporal evolution of the F-function in terms of
Externí odkaz:
https://doaj.org/article/2f76a19d5d6748b7b8738a9989c7fcdb
Publikováno v:
Entropy, Vol 23, Iss 3, p 276 (2021)
Non-extensive statistical mechanics (NESM), introduced by Tsallis based on the principle of non-additive entropy, is a generalisation of the Boltzmann–Gibbs statistics. NESM has been shown to provide the necessary theoretical and analytical impleme
Externí odkaz:
https://doaj.org/article/6701882149fa478ebda396b389e50eac
Publikováno v:
Entropy, Vol 22, Iss 10, p 1115 (2020)
Non-extensive statistical mechanics (NESM), which is a generalization of the traditional Boltzmann-Gibbs statistics, constitutes a theoretical and analytical tool for investigating the irreversible damage evolution processes and fracture mechanisms o
Externí odkaz:
https://doaj.org/article/a05642c91628472d8deb7bda24351ea5