Collapse dynamics of spherical cavities in a solid under shock loading

Abstract Extraordinary states of highly localised pressure and temperature can be generated upon the collapse of impulsively driven cavities. Direct observation of this phenomenon in solids has proved challenging, but recent advances in high-speed synchrotron radiography now permit the study of high...

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Autores principales:	E. M. Escauriza, J. P. Duarte, D. J. Chapman, M. E. Rutherford, L. Farbaniec, J. C. Jonsson, L. C. Smith, M. P. Olbinado, J. Skidmore, P. Foster, T. Ringrose, A. Rack, D. E. Eakins
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/40a876df59794d7d95d827339b763330
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spelling	oai:doaj.org-article:40a876df59794d7d95d827339b7633302021-12-02T14:59:15ZCollapse dynamics of spherical cavities in a solid under shock loading10.1038/s41598-020-64669-y2045-2322https://doaj.org/article/40a876df59794d7d95d827339b7633302020-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-64669-yhttps://doaj.org/toc/2045-2322Abstract Extraordinary states of highly localised pressure and temperature can be generated upon the collapse of impulsively driven cavities. Direct observation of this phenomenon in solids has proved challenging, but recent advances in high-speed synchrotron radiography now permit the study of highly transient, subsurface events in real time. We present a study on the shock-induced collapse of spherical cavities in a solid polymethyl methacrylate medium, driven to shock states between 0.49 and 16.60 GPa. Utilising multi-MHz phase contrast radiography, extended sequences of the collapse process have been captured, revealing new details of interface motion, material failure and jet instability formation. Results reveal a rich array of collapse characteristics dominated by strength effects at low shock pressures and leading to a hydrodynamic response at the highest loading conditions.E. M. EscaurizaJ. P. DuarteD. J. ChapmanM. E. RutherfordL. FarbaniecJ. C. JonssonL. C. SmithM. P. OlbinadoJ. SkidmoreP. FosterT. RingroseA. RackD. E. EakinsNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-16 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q E. M. Escauriza J. P. Duarte D. J. Chapman M. E. Rutherford L. Farbaniec J. C. Jonsson L. C. Smith M. P. Olbinado J. Skidmore P. Foster T. Ringrose A. Rack D. E. Eakins Collapse dynamics of spherical cavities in a solid under shock loading
description	Abstract Extraordinary states of highly localised pressure and temperature can be generated upon the collapse of impulsively driven cavities. Direct observation of this phenomenon in solids has proved challenging, but recent advances in high-speed synchrotron radiography now permit the study of highly transient, subsurface events in real time. We present a study on the shock-induced collapse of spherical cavities in a solid polymethyl methacrylate medium, driven to shock states between 0.49 and 16.60 GPa. Utilising multi-MHz phase contrast radiography, extended sequences of the collapse process have been captured, revealing new details of interface motion, material failure and jet instability formation. Results reveal a rich array of collapse characteristics dominated by strength effects at low shock pressures and leading to a hydrodynamic response at the highest loading conditions.
format	article
author	E. M. Escauriza J. P. Duarte D. J. Chapman M. E. Rutherford L. Farbaniec J. C. Jonsson L. C. Smith M. P. Olbinado J. Skidmore P. Foster T. Ringrose A. Rack D. E. Eakins
author_facet	E. M. Escauriza J. P. Duarte D. J. Chapman M. E. Rutherford L. Farbaniec J. C. Jonsson L. C. Smith M. P. Olbinado J. Skidmore P. Foster T. Ringrose A. Rack D. E. Eakins
author_sort	E. M. Escauriza
title	Collapse dynamics of spherical cavities in a solid under shock loading
title_short	Collapse dynamics of spherical cavities in a solid under shock loading
title_full	Collapse dynamics of spherical cavities in a solid under shock loading
title_fullStr	Collapse dynamics of spherical cavities in a solid under shock loading
title_full_unstemmed	Collapse dynamics of spherical cavities in a solid under shock loading
title_sort	collapse dynamics of spherical cavities in a solid under shock loading
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/40a876df59794d7d95d827339b763330
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Collapse dynamics of spherical cavities in a solid under shock loading

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