Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10637/14599

Numerical analysis of the influence of the damping rings' thickness on interrupted dynamic tension results using SiC-reinforced ZC71 magnesium alloy specimens

Título : Numerical analysis of the influence of the damping rings' thickness on interrupted dynamic tension results using SiC-reinforced ZC71 magnesium alloy specimens
Autor : González Lezcano, Roberto Alonso.
Del Río Campos, José Manuel
Materias: Damping elementDnamic tension
Editorial : Copernicus Publications
Citación : González-Lezcano, R.-A. and del Río Campos, J.-M.: Numerical analysis of the influence of the damping rings' thickness on interrupted dynamic tension results using SiC-reinforced ZC71 magnesium alloy specimens, Mech. Sci., 10, 169–186, https://doi.org/10.5194/ms-10-169-2019, 2019
Resumen : This article discusses the influence of the thickness of the damping rings used for interrupting a dynamic tension experiments on the results of a modified split Hopkinson tension bar (SHTB). In this paper a device enclosed in an external fixture used for interrupting a dynamic tension experiment in a SHTB is studied. The novelty of this manuscript with respect to previous studies lies in the fact that the dynamic tension experiment in a SHTB is interrupted in order to study the mechanical behavior of the material at high strain rates. The role played by such device is to interrupt the experiment at different levels of plastic deformation, particularly when the specimen is about to reach its failure strength. Finite-element (FE) simulations of high-strain-rate tension experiments are accomplished on a particle-reinforced metal matrix composite specimen (namely SiCreinforced ZC71 magnesium alloy) when varying the thickness of the damping rings. Interrupting the test before the specimen breaks offers the possibility of being able to study in a more detailed way the deformation process of such material at high strain rates. Therefore, this work focuses on the study of the behaviour of materials undergoing high strain rates, developing a tool which allows materials to withstand different levels of strain rates in a controlled manner and providing guidance for future studies. In view of this research, it can be concluded that the thickness of the damping rings is a factor that can resolutely influence the interrupted dynamic tension experiment results avoiding the specimen’s failure by optimally buffering the experiment using 0.8mm thick lead damping rings.
URI : http://hdl.handle.net/10637/14599
Derechos: http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es
ISSN : 2191-916X
Fecha de publicación : 7-jun-2019
Centro : Universidad San Pablo-CEU
Aparece en las colecciones: Escuela de Politécnica Superior





Los ítems de DSpace están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.