Analytical modelling of the mechanical damage of soil induced by lightning strikes capturing electro-thermal, thermo-osmotic, and electro-osmotic effects

Rao, PP; Ouyang, PH; Nimbalkar, S; Chen, QS; Wu, ZL; Cui, JF

Analytical modelling of the mechanical damage of soil induced by lightning strikes capturing electro-thermal, thermo-osmotic, and electro-osmotic effects

Rao, PP Ouyang, PH Nimbalkar, S

Chen, QS Wu, ZL Cui, JF

Permalink

Publisher:: SCIENCE PRESS
Publication Type:: Journal Article
Citation:: Journal of Mountain Science, 2022, 19, (7), pp. 2027-2043
Issue Date:: 2022-07-01

Closed Access

	Filename	Description	Size
	Analytical modelling of the mechanical damage of soil induced by lightning strikes capturing electro-thermal, thermo-osmotic, and electro-osmotic effects.pdf	Published version	3.53 MB	Adobe PDF	View/Open

Copyright Clearance Process

Recently Added
In Progress
Closed Access

This item is closed access and not available.

Full metadata record

Field	Value	Language
dc.contributor.author	Rao, PP
dc.contributor.author	Ouyang, PH
dc.contributor.author	Nimbalkar, S https://orcid.org/0000-0002-1538-3396
dc.contributor.author	Chen, QS
dc.contributor.author	Wu, ZL
dc.contributor.author	Cui, JF
dc.date.accessioned	2023-03-20T02:33:18Z
dc.date.available	2023-03-20T02:33:18Z
dc.date.issued	2022-07-01
dc.identifier.citation	Journal of Mountain Science, 2022, 19, (7), pp. 2027-2043
dc.identifier.issn	1672-6316
dc.identifier.issn	1993-0321
dc.identifier.uri	http://hdl.handle.net/10453/167707
dc.description.abstract	This article presents a mathematical model for simulating the mechanical behaviour of lightning strikes and analysing the resulting damage to the soil. This article focuses on the electro-thermal effect and seepage caused by lightning strikes in particular. Then, a numerical model based on the conservation laws of momentum, mass and energy is developed for soil subjected to lightning strikes. Comparisons to field observations and theoretical calculations are used to demonstrate the efficacy and accuracy of numerical simulations. The findings demonstrate that lightning strikes can cause soils to experience both seepage force and heat stress. Under the calculative condition of this article: by increasing the intrinsic permeability of the soil, kp (≥10−10 m2), the seepage force can be effectively reduced, hence reducing the risk of lightning strikes; improving the electrical conductivity of the soil β (≥10−1 S/m) and lowering its thermal expansion coefficient (≤10−6 K−1) can greatly reduce the damage caused by lightning strikes to the soil. The preceding investigations demonstrate that the suggested model is capable of evaluating mechanical damage caused by lightning in the soil, and the findings contribute to a better understanding of soil mechanical response to lightning strikes.
dc.language	English
dc.publisher	SCIENCE PRESS
dc.relation.ispartof	Journal of Mountain Science
dc.relation.isbasedon	10.1007/s11629-021-7235-z
dc.rights	info:eu-repo/semantics/closedAccess
dc.subject	0502 Environmental Science and Management, 0602 Ecology
dc.title	Analytical modelling of the mechanical damage of soil induced by lightning strikes capturing electro-thermal, thermo-osmotic, and electro-osmotic effects
dc.type	Journal Article
utslib.citation.volume	19
utslib.for	0502 Environmental Science and Management
utslib.for	0602 Ecology
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	closed_access	*
dc.date.updated	2023-03-20T02:33:17Z
pubs.issue	7
pubs.publication-status	Published
pubs.volume	19
utslib.citation.issue	7

Abstract:

This article presents a mathematical model for simulating the mechanical behaviour of lightning strikes and analysing the resulting damage to the soil. This article focuses on the electro-thermal effect and seepage caused by lightning strikes in particular. Then, a numerical model based on the conservation laws of momentum, mass and energy is developed for soil subjected to lightning strikes. Comparisons to field observations and theoretical calculations are used to demonstrate the efficacy and accuracy of numerical simulations. The findings demonstrate that lightning strikes can cause soils to experience both seepage force and heat stress. Under the calculative condition of this article: by increasing the intrinsic permeability of the soil, kp (≥10−10 m2), the seepage force can be effectively reduced, hence reducing the risk of lightning strikes; improving the electrical conductivity of the soil β (≥10−1 S/m) and lowering its thermal expansion coefficient (≤10−6 K−1) can greatly reduce the damage caused by lightning strikes to the soil. The preceding investigations demonstrate that the suggested model is capable of evaluating mechanical damage caused by lightning in the soil, and the findings contribute to a better understanding of soil mechanical response to lightning strikes.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/167707