Dynamic fracture effects on remote stress amplification in AGR graphite bricks

Timothy Crump; Guilhem Ferté; Paul Mummery; Andrey Jivkov; Philippe Martinuzzi; Van-Xuan Tran

doi:10.1016/j.nucengdes.2017.01.014

Dynamic fracture effects on remote stress amplification in AGR graphite bricks

Timothy Crump, Guilhem Ferté, Paul Mummery, Andrey Jivkov, Philippe Martinuzzi, Van-Xuan Tran

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Abstract

An initial investigation, using a newly developed tool within Code_Aster known as the eXtended Finite Element Method with cohesive elements (XCZM), has been undertaken to investigate the dynamic stress state of a 2D graphite brick geometry under the loading of a dynamically propagating crack. This was with the aim of investigating the phenomenon known as ‘prompt secondary cracking’ (PSC) and any effects geometrical features may have on the remote stress state of the brick. It was seen that the PSC mechanism could be modelled, with methane holes possibly having an effect on this phenomenon by altering the initial static stress state.

Original language	English
Pages (from-to)	280-289
Number of pages	10
Journal	Nuclear Engineering and Design
Volume	323
Early online date	23 Jan 2017
DOIs	https://doi.org/10.1016/j.nucengdes.2017.01.014
Publication status	Published - 1 Nov 2017

Keywords

Graphite
Prompt Secondary Cracking
Dynamic Fracture

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10.1016/j.nucengdes.2017.01.014

ManuscriptAccepted author manuscript, 5.49 MBLicence: CC BY-NC-ND

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MaPoS: Mechanics and Physics of Solids
Jivkov, A. (PI), Katnam, K.-B. (CoI), Lazarov, B. (CoI), Margetts, L. (CoI), Boom, P. (CoI), Borodin, E. (CoI), Kosmas, O. (CoI), Baychev, T. (PGR student), Chen, T. (PGR student), Farrokhnia, A. (PGR student), Ford, M. (PGR student), He, L. (PGR student), Hewitt, S. (PGR student), Li, X. (PGR student), Marshall, O. (PGR student), Song, Z. (PGR student), Tsamos, A. (PGR student) & Wang, J. (PGR student)
Project: Research
Graphite Cracking.
Mummery, P. (PI), Jones, A. (CoI), Marsden, B. (CoI), Schmidt, M. (CoI) & Yates, J. (CoI)
1/06/13 → 31/05/15
Project: Research

Cite this

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title = "Dynamic fracture effects on remote stress amplification in AGR graphite bricks",

abstract = "An initial investigation, using a newly developed tool within Code_Aster known as the eXtended Finite Element Method with cohesive elements (XCZM), has been undertaken to investigate the dynamic stress state of a 2D graphite brick geometry under the loading of a dynamically propagating crack. This was with the aim of investigating the phenomenon known as {\textquoteleft}prompt secondary cracking{\textquoteright} (PSC) and any effects geometrical features may have on the remote stress state of the brick. It was seen that the PSC mechanism could be modelled, with methane holes possibly having an effect on this phenomenon by altering the initial static stress state.",

keywords = "Graphite, Prompt Secondary Cracking, Dynamic Fracture",

author = "Timothy Crump and Guilhem Fert{\'e} and Paul Mummery and Andrey Jivkov and Philippe Martinuzzi and Van-Xuan Tran",

year = "2017",

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doi = "10.1016/j.nucengdes.2017.01.014",

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T1 - Dynamic fracture effects on remote stress amplification in AGR graphite bricks

AU - Crump, Timothy

AU - Ferté, Guilhem

AU - Mummery, Paul

AU - Jivkov, Andrey

AU - Martinuzzi, Philippe

AU - Tran, Van-Xuan

PY - 2017/11/1

Y1 - 2017/11/1

N2 - An initial investigation, using a newly developed tool within Code_Aster known as the eXtended Finite Element Method with cohesive elements (XCZM), has been undertaken to investigate the dynamic stress state of a 2D graphite brick geometry under the loading of a dynamically propagating crack. This was with the aim of investigating the phenomenon known as ‘prompt secondary cracking’ (PSC) and any effects geometrical features may have on the remote stress state of the brick. It was seen that the PSC mechanism could be modelled, with methane holes possibly having an effect on this phenomenon by altering the initial static stress state.

AB - An initial investigation, using a newly developed tool within Code_Aster known as the eXtended Finite Element Method with cohesive elements (XCZM), has been undertaken to investigate the dynamic stress state of a 2D graphite brick geometry under the loading of a dynamically propagating crack. This was with the aim of investigating the phenomenon known as ‘prompt secondary cracking’ (PSC) and any effects geometrical features may have on the remote stress state of the brick. It was seen that the PSC mechanism could be modelled, with methane holes possibly having an effect on this phenomenon by altering the initial static stress state.

KW - Graphite

KW - Prompt Secondary Cracking

KW - Dynamic Fracture

U2 - 10.1016/j.nucengdes.2017.01.014

DO - 10.1016/j.nucengdes.2017.01.014

M3 - Article

SN - 0029-5493

VL - 323

SP - 280

EP - 289

JO - Nuclear Engineering and Design

JF - Nuclear Engineering and Design

ER -

Dynamic fracture effects on remote stress amplification in AGR graphite bricks

Abstract

Keywords

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Projects

MaPoS: Mechanics and Physics of Solids

Graphite Cracking.

Cite this