The influence of concrete inhomogeneity on elastic response of the sample under dynamic load
Results of the dynamic loading analysis of the heterogeneous concrete rectangular samples are presented in the article. This heterogeneity is set randomly with respect to the basic mechanical parameters: the mass density and the modules of concrete deformation. These both parameters define the elast...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Military University of Technology, Warsaw
2016-12-01
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| Series: | Biuletyn Wojskowej Akademii Technicznej |
| Subjects: | |
| Online Access: | http://biuletynwat.pl/icid/1228615 |
| _version_ | 1797720322998272000 |
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| author | Robert Osiński Grzegorz Bąk |
| author_facet | Robert Osiński Grzegorz Bąk |
| author_sort | Robert Osiński |
| collection | DOAJ |
| description | Results of the dynamic loading analysis of the heterogeneous concrete rectangular samples are presented in the article. This heterogeneity is set randomly with respect to the basic mechanical parameters: the mass density and the modules of concrete deformation. These both parameters define the elastic wave velocities. According to experimental researches by the ultrasounds method, the values of the longitudinal wave velocity is between (3,0 ÷ 5,0) [km/s]. By the draw of the randomly mechanical parameters this interval was kept. The rating of the heterogeneity is expressed in terms of concrete strength using a dependence correlation between the phase velocity and an average local strength of concrete. The results of numerical analysis of wave reaction of rectangular concrete samples were obtained by the differential discretization, which evolved the sample into a three-dimensional model of the type of a discreet structural quasi-mesosystem. It is shown that the excessive heterogeneity revealed the initiation of unstable deformation processes.[b]Keywords:[/b] differential approximation, explicit integration scheme, spatial analysis of the wave |
| first_indexed | 2024-03-12T09:18:51Z |
| format | Article |
| id | doaj.art-16207bca1ce4448b90108e0f82ea6767 |
| institution | Directory Open Access Journal |
| issn | 1234-5865 |
| language | English |
| last_indexed | 2024-03-12T09:18:51Z |
| publishDate | 2016-12-01 |
| publisher | Military University of Technology, Warsaw |
| record_format | Article |
| series | Biuletyn Wojskowej Akademii Technicznej |
| spelling | doaj.art-16207bca1ce4448b90108e0f82ea67672023-09-02T14:40:12ZengMilitary University of Technology, WarsawBiuletyn Wojskowej Akademii Technicznej1234-58652016-12-01654133010.5604/12345865.12286151228615The influence of concrete inhomogeneity on elastic response of the sample under dynamic loadRobert Osiński0Grzegorz Bąk1Wojskowa Akademia Techniczna, Wydział Inżynierii Lądowej i Geodezji, 00-908 Warszawa, ul. gen. S. Kaliskiego 2Wojskowa Akademia Techniczna, Wydział Inżynierii Lądowej i Geodezji, Katedra Budownictwa, 00-908 Warszawa, ul. gen. S. Kaliskiego 2Results of the dynamic loading analysis of the heterogeneous concrete rectangular samples are presented in the article. This heterogeneity is set randomly with respect to the basic mechanical parameters: the mass density and the modules of concrete deformation. These both parameters define the elastic wave velocities. According to experimental researches by the ultrasounds method, the values of the longitudinal wave velocity is between (3,0 ÷ 5,0) [km/s]. By the draw of the randomly mechanical parameters this interval was kept. The rating of the heterogeneity is expressed in terms of concrete strength using a dependence correlation between the phase velocity and an average local strength of concrete. The results of numerical analysis of wave reaction of rectangular concrete samples were obtained by the differential discretization, which evolved the sample into a three-dimensional model of the type of a discreet structural quasi-mesosystem. It is shown that the excessive heterogeneity revealed the initiation of unstable deformation processes.[b]Keywords:[/b] differential approximation, explicit integration scheme, spatial analysis of the wavehttp://biuletynwat.pl/icid/1228615differential approximationexplicit integration schemespatial analysis of the wave |
| spellingShingle | Robert Osiński Grzegorz Bąk The influence of concrete inhomogeneity on elastic response of the sample under dynamic load Biuletyn Wojskowej Akademii Technicznej differential approximation explicit integration scheme spatial analysis of the wave |
| title | The influence of concrete inhomogeneity on elastic response of the sample under dynamic load |
| title_full | The influence of concrete inhomogeneity on elastic response of the sample under dynamic load |
| title_fullStr | The influence of concrete inhomogeneity on elastic response of the sample under dynamic load |
| title_full_unstemmed | The influence of concrete inhomogeneity on elastic response of the sample under dynamic load |
| title_short | The influence of concrete inhomogeneity on elastic response of the sample under dynamic load |
| title_sort | influence of concrete inhomogeneity on elastic response of the sample under dynamic load |
| topic | differential approximation explicit integration scheme spatial analysis of the wave |
| url | http://biuletynwat.pl/icid/1228615 |
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