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- 저자 : Esteban Flores (검색결과 2 건)
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On a length-biased life distribution based on the sinh-normal model
Antonio Sanhueza,Víctor Leiva,Esteban Flores 한국통계학회 2009 Journal of the Korean Statistical Society Vol.38 No.4
In this article, we characterize a new life distribution based on the sinh-normal model. Specifically, we find the density, the distribution function, and the moments of the new model. In addition, we carry out a brief graphical analysis of its density. Furthermore, we derive some properties and transformations related to the new distribution. Moreover, we conduct a study of its hazard rate. Finally, we present an example that illustrates the obtained results and a computational implementation of these results.
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Viscoelastic behavior of concrete structures subject to earthquake
Mejia-Nava, Rosa Adela,Ibrahimbegovic, Adnan,Dominguez-Ramirez, Norberto,Flores-Mendez, Esteban Techno-Press 2021 Coupled systems mechanics Vol.10 No.3
This paper investigates an alternative way to the Raleigh formula to catch con- tributions of damping effects. Nowadays, thanks to the power of new software and effi- cient computational methods, there exist possibility to implement new analysis of damping through multiscale approach. The corresponding homogenization of a representative elemen-tal volume of concrete is used to calculate the effective properties of the composite, since energy dissipation properties such as viscoelasticity are not taken into account. At the end of this work, these methodologies are incorporated into a column of a building subject to seismic action. More precisely, with concrete as a composite material (aggregate+cement), we can use homogenization methods to calculate its effective properties by using the classical approach of a representative elemental volume. This can help to take into account properties of energy dissipation, such as produced by viscoelasticity. Finally, for illustration, the pro- posed methodology is applied to structural analysis of a column under the most unfavorable conditions in a building subject to earthquake action.
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