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Dynamic fracture of a dissimilar chain

In this paper, we study the dynamic fracture of a dissimilar chain composed of two different mass-spring chains and connected with other springs. The propagation of the fault (crack) is realized under externally applied moving forces. In comparison with a homogeneous double chain, the considered str...

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Detalles Bibliográficos
Autores principales: Gorbushin, N., Mishuris, G.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society Publishing 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6732372/
https://www.ncbi.nlm.nih.gov/pubmed/31474212
http://dx.doi.org/10.1098/rsta.2019.0103
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author Gorbushin, N.
Mishuris, G.
author_facet Gorbushin, N.
Mishuris, G.
author_sort Gorbushin, N.
collection PubMed
description In this paper, we study the dynamic fracture of a dissimilar chain composed of two different mass-spring chains and connected with other springs. The propagation of the fault (crack) is realized under externally applied moving forces. In comparison with a homogeneous double chain, the considered structure displays some new essential features of steady-state crack propagation. Specifically, the externally applied forces are of a different strength, unlike a static case, and should be appropriately chosen to satisfy the equilibrium of the structure. Moreover, there exists a gap in the range of crack speeds where the steady-state fracture cannot occur. We analyse the admissibility of solutions for different model parameters and crack speeds. We complement analytical findings with numerical simulations to validate our results. This article is part of the theme issue ‘Modelling of dynamic phenomena and localization in structured media (part 1)’.
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spelling pubmed-67323722019-09-11 Dynamic fracture of a dissimilar chain Gorbushin, N. Mishuris, G. Philos Trans A Math Phys Eng Sci Articles In this paper, we study the dynamic fracture of a dissimilar chain composed of two different mass-spring chains and connected with other springs. The propagation of the fault (crack) is realized under externally applied moving forces. In comparison with a homogeneous double chain, the considered structure displays some new essential features of steady-state crack propagation. Specifically, the externally applied forces are of a different strength, unlike a static case, and should be appropriately chosen to satisfy the equilibrium of the structure. Moreover, there exists a gap in the range of crack speeds where the steady-state fracture cannot occur. We analyse the admissibility of solutions for different model parameters and crack speeds. We complement analytical findings with numerical simulations to validate our results. This article is part of the theme issue ‘Modelling of dynamic phenomena and localization in structured media (part 1)’. The Royal Society Publishing 2019-10-21 2019-09-02 /pmc/articles/PMC6732372/ /pubmed/31474212 http://dx.doi.org/10.1098/rsta.2019.0103 Text en © 2019 The Authors. http://creativecommons.org/licenses/by/4.0/ Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.
spellingShingle Articles
Gorbushin, N.
Mishuris, G.
Dynamic fracture of a dissimilar chain
title Dynamic fracture of a dissimilar chain
title_full Dynamic fracture of a dissimilar chain
title_fullStr Dynamic fracture of a dissimilar chain
title_full_unstemmed Dynamic fracture of a dissimilar chain
title_short Dynamic fracture of a dissimilar chain
title_sort dynamic fracture of a dissimilar chain
topic Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6732372/
https://www.ncbi.nlm.nih.gov/pubmed/31474212
http://dx.doi.org/10.1098/rsta.2019.0103
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