A Semi-Analytical Solution for Shock Wave Pressure and Radius of Soil Plastic Zone Induced by Lightning Strikes.

Wu, Z; Rao, P; Nimbalkar, S; Chen, Q; Cui, J; Ouyang, P

A Semi-Analytical Solution for Shock Wave Pressure and Radius of Soil Plastic Zone Induced by Lightning Strikes.

Wu, Z Rao, P Nimbalkar, S

Chen, Q Cui, J Ouyang, P

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Publisher:: MDPI
Publication Type:: Journal Article
Citation:: Materials (Basel), 2022, 15, (6), pp. 2239
Issue Date:: 2022-03-17

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Field	Value	Language
dc.contributor.author	Wu, Z
dc.contributor.author	Rao, P
dc.contributor.author	Nimbalkar, S https://orcid.org/0000-0002-1538-3396
dc.contributor.author	Chen, Q
dc.contributor.author	Cui, J
dc.contributor.author	Ouyang, P
dc.date.accessioned	2023-03-19T22:48:21Z
dc.date.available	2022-03-15
dc.date.available	2023-03-19T22:48:21Z
dc.date.issued	2022-03-17
dc.identifier.citation	Materials (Basel), 2022, 15, (6), pp. 2239
dc.identifier.issn	1996-1944
dc.identifier.issn	1996-1944
dc.identifier.uri	http://hdl.handle.net/10453/167601
dc.description.abstract	A semi-analytical solution for forecasting the soil behavior induced by lightning strikes is of great engineering significance to calculate the radius of the soil plastic zone. In this paper, a simplified two-stage method is employed to solve the shock wave pressure and the radius of the soil plastic zone. The solution is verified against experimental data. Using the present model, the major factors dominating the shock wave pressure and the radius of the soil plastic zone are investigated. The results show that (1) the radius of the soil plastic zone (rp) induced by lightning decreases monotonically with cohesion (c) and internal friction angle (φ), while c has a better effect on soil properties than φ does; (2) increasing the initial radius of the plasma channel (ri0) can reduce the pressure (P) and increasing ri0 has a nonnegligible effect on rp; with ri0 increasing by 100%, the radius of the soil plastic zone increases by 47.9-59.7%; (3) the plasma channel length (L) has a significant influence on P and rp, especially when L is at a relatively low level; (4) the rp induced by lightning decreases exponentially with attenuation coefficient (a); (5) the wavefront time is a major factor while the half-value time is a minor factor for the shock wave pressure induced by plasma explosives.
dc.format	Electronic
dc.language	eng
dc.publisher	MDPI
dc.relation.ispartof	Materials (Basel)
dc.relation.isbasedon	10.3390/ma15062239
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	03 Chemical Sciences, 09 Engineering
dc.title	A Semi-Analytical Solution for Shock Wave Pressure and Radius of Soil Plastic Zone Induced by Lightning Strikes.
dc.type	Journal Article
utslib.citation.volume	15
utslib.location.activity	Switzerland
utslib.for	03 Chemical Sciences
utslib.for	09 Engineering
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	open_access	*
dc.date.updated	2023-03-19T22:48:10Z
pubs.issue	6
pubs.publication-status	Published online
pubs.volume	15
utslib.citation.issue	6

Abstract:

A semi-analytical solution for forecasting the soil behavior induced by lightning strikes is of great engineering significance to calculate the radius of the soil plastic zone. In this paper, a simplified two-stage method is employed to solve the shock wave pressure and the radius of the soil plastic zone. The solution is verified against experimental data. Using the present model, the major factors dominating the shock wave pressure and the radius of the soil plastic zone are investigated. The results show that (1) the radius of the soil plastic zone (rp) induced by lightning decreases monotonically with cohesion (c) and internal friction angle (φ), while c has a better effect on soil properties than φ does; (2) increasing the initial radius of the plasma channel (ri0) can reduce the pressure (P) and increasing ri0 has a nonnegligible effect on rp; with ri0 increasing by 100%, the radius of the soil plastic zone increases by 47.9-59.7%; (3) the plasma channel length (L) has a significant influence on P and rp, especially when L is at a relatively low level; (4) the rp induced by lightning decreases exponentially with attenuation coefficient (a); (5) the wavefront time is a major factor while the half-value time is a minor factor for the shock wave pressure induced by plasma explosives.

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http://hdl.handle.net/10453/167601