Numerical Simulation of Pipeline Failure Mechanisms Under Lightning Strikes, Capturing Electric Disruption and Thermal Damage

Rao, P; Feng, W; Ouyang, P; Cui, J; Nimbalkar, S; Chen, Q

Numerical Simulation of Pipeline Failure Mechanisms Under Lightning Strikes, Capturing Electric Disruption and Thermal Damage

Rao, P Feng, W Ouyang, P Cui, J Nimbalkar, S

Chen, Q

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Publisher:: SPRINGERNATURE
Publication Type:: Journal Article
Citation:: Journal of Failure Analysis and Prevention, 2023, 23, (5), pp. 2065-2074
Issue Date:: 2023-10-01

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Field	Value	Language
dc.contributor.author	Rao, P
dc.contributor.author	Feng, W
dc.contributor.author	Ouyang, P
dc.contributor.author	Cui, J
dc.contributor.author	Nimbalkar, S https://orcid.org/0000-0002-1538-3396
dc.contributor.author	Chen, Q
dc.date.accessioned	2024-04-12T09:29:06Z
dc.date.available	2024-04-12T09:29:06Z
dc.date.issued	2023-10-01
dc.identifier.citation	Journal of Failure Analysis and Prevention, 2023, 23, (5), pp. 2065-2074
dc.identifier.issn	1547-7029
dc.identifier.issn	1864-1245
dc.identifier.uri	http://hdl.handle.net/10453/177864
dc.description.abstract	This study presents a computational analysis of pipeline failure and soil penetration when struck by lightning. A numerical method based on an electro-thermal coupled model is proposed for this purpose. The electric disruption of soil and the thermal damage of pipelines are used to represent engineering failures and calamities. The heterogeneity of the soil and the temporal-spatial distribution of lightning are considered when modelling natural lightning and the ground. Innovative numerical simulations illuminate the mechanisms and processes underlying electrical disasters and pipeline failure. The simulation results indicate that lightning strikes can induce electric penetration in soils and damage underground pipelines. Under the calculative conditions of this article, a cloud-to-ground lightning strike with a voltage of 10 kV can cause a thermal breakdown hole in an underground conduit with a wall thickness of 0.05 m and a depth of 1 m. At the same time, the temperature rises to 500 °C at the location of the pipe perforation opening and 200 °C at the location of the unperforated pipe. The novel numerical method may reveal the mechanism of pipeline failure and the electric penetration of soil during lightning impacts.
dc.language	English
dc.publisher	SPRINGERNATURE
dc.relation.ispartof	Journal of Failure Analysis and Prevention
dc.relation.isbasedon	10.1007/s11668-023-01754-0
dc.rights	info:eu-repo/semantics/restrictedAccess
dc.subject	0914 Resources Engineering and Extractive Metallurgy
dc.subject.classification	Materials
dc.subject.classification	4019 Resources engineering and extractive metallurgy
dc.title	Numerical Simulation of Pipeline Failure Mechanisms Under Lightning Strikes, Capturing Electric Disruption and Thermal Damage
dc.type	Journal Article
utslib.citation.volume	23
utslib.for	0914 Resources Engineering and Extractive Metallurgy
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	University of Technology Sydney/Faculty of Engineering and Information Technology/School of Civil and Environmental Engineering
pubs.organisational-group	University of Technology Sydney/Strength - CBI - Centre for Built Infrastructure
utslib.copyright.status	in_progress	*
dc.date.updated	2024-04-12T09:29:05Z
pubs.issue	5
pubs.publication-status	Published
pubs.volume	23
utslib.citation.issue	5

Abstract:

This study presents a computational analysis of pipeline failure and soil penetration when struck by lightning. A numerical method based on an electro-thermal coupled model is proposed for this purpose. The electric disruption of soil and the thermal damage of pipelines are used to represent engineering failures and calamities. The heterogeneity of the soil and the temporal-spatial distribution of lightning are considered when modelling natural lightning and the ground. Innovative numerical simulations illuminate the mechanisms and processes underlying electrical disasters and pipeline failure. The simulation results indicate that lightning strikes can induce electric penetration in soils and damage underground pipelines. Under the calculative conditions of this article, a cloud-to-ground lightning strike with a voltage of 10 kV can cause a thermal breakdown hole in an underground conduit with a wall thickness of 0.05 m and a depth of 1 m. At the same time, the temperature rises to 500 °C at the location of the pipe perforation opening and 200 °C at the location of the unperforated pipe. The novel numerical method may reveal the mechanism of pipeline failure and the electric penetration of soil during lightning impacts.

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http://hdl.handle.net/10453/177864