Study on JWL equation of state for the numerical simulation of near-field and far-field effects in underwater explosion scenario
Rapid growth in computational capacity facilitates structural mechanics specialist to facilitate numerical simulation of complex explicit dynamics of detonation shock dynamics and explosive analysis. An attempt is made depict shock wave propagation behaviour and variation of its mechanical propertie...
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| Format: | Article |
| Language: | English |
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Elsevier
2020-08-01
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| Series: | Engineering Science and Technology, an International Journal |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2215098618310255 |
| _version_ | 1818524452208508928 |
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| author | Sourabh Koli P. Chellapandi Lokavarapu Bhaskara Rao Akshay Sawant |
| author_facet | Sourabh Koli P. Chellapandi Lokavarapu Bhaskara Rao Akshay Sawant |
| author_sort | Sourabh Koli |
| collection | DOAJ |
| description | Rapid growth in computational capacity facilitates structural mechanics specialist to facilitate numerical simulation of complex explicit dynamics of detonation shock dynamics and explosive analysis. An attempt is made depict shock wave propagation behaviour and variation of its mechanical properties along the radial line of spherical shaped high explosives in the water domain. JWL equation of state for expansion of detonating products after explosion has been studied for several high explosives and simplified approach with PVγ form has been suggested to reduce complexity of calculation and computational time for underwater explosion phenomenon. Near-field effects cause severe effects on the structures leading to the local deformation and hazard to structure while with the spatial distance away from the explosive centre explosion effects reduces due to expansion of detonating products. There is strong need to segregate such effects to find the vulnerability of structures depending upon target structure distance from explosive centre. Typical spherical high explosives have been studied with variation of charge radius employing homogeneous and heterogeneous explosive model to study such behaviour. Successful criteria to distinguish near-field and far-field effect are evolved after parametric study. All the results with consolidated comparison are presented in this paper. |
| first_indexed | 2024-12-11T05:57:16Z |
| format | Article |
| id | doaj.art-5963b3b1c08a46418a1a99687a2c0897 |
| institution | Directory Open Access Journal |
| issn | 2215-0986 |
| language | English |
| last_indexed | 2024-12-11T05:57:16Z |
| publishDate | 2020-08-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Engineering Science and Technology, an International Journal |
| spelling | doaj.art-5963b3b1c08a46418a1a99687a2c08972022-12-22T01:18:37ZengElsevierEngineering Science and Technology, an International Journal2215-09862020-08-01234758768Study on JWL equation of state for the numerical simulation of near-field and far-field effects in underwater explosion scenarioSourabh Koli0P. Chellapandi1Lokavarapu Bhaskara Rao2Akshay Sawant3School of Mechanical and Building Sciences, VIT University, Chennai Campus, Vandalur-Kelambakkam Road, Chennai 600127, Tamil Nadu, IndiaINAE, Distinguished Professor, Department of Applied Mechanics, Indian Institute of Technology Madras, Chennai-600036, Tamil Nadu, IndiaSchool of Mechanical and Building Sciences, VIT University, Chennai Campus, Vandalur-Kelambakkam Road, Chennai 600127, Tamil Nadu, India; Corresponding author.Valeo India Pvt Ltd, Old Mahabalipuram, Navallur, Chennai, Tamil Nadu, IndiaRapid growth in computational capacity facilitates structural mechanics specialist to facilitate numerical simulation of complex explicit dynamics of detonation shock dynamics and explosive analysis. An attempt is made depict shock wave propagation behaviour and variation of its mechanical properties along the radial line of spherical shaped high explosives in the water domain. JWL equation of state for expansion of detonating products after explosion has been studied for several high explosives and simplified approach with PVγ form has been suggested to reduce complexity of calculation and computational time for underwater explosion phenomenon. Near-field effects cause severe effects on the structures leading to the local deformation and hazard to structure while with the spatial distance away from the explosive centre explosion effects reduces due to expansion of detonating products. There is strong need to segregate such effects to find the vulnerability of structures depending upon target structure distance from explosive centre. Typical spherical high explosives have been studied with variation of charge radius employing homogeneous and heterogeneous explosive model to study such behaviour. Successful criteria to distinguish near-field and far-field effect are evolved after parametric study. All the results with consolidated comparison are presented in this paper.http://www.sciencedirect.com/science/article/pii/S2215098618310255Underwater explosionNear-field effectsFar-field effectsJWL equationDetonationShock wave |
| spellingShingle | Sourabh Koli P. Chellapandi Lokavarapu Bhaskara Rao Akshay Sawant Study on JWL equation of state for the numerical simulation of near-field and far-field effects in underwater explosion scenario Engineering Science and Technology, an International Journal Underwater explosion Near-field effects Far-field effects JWL equation Detonation Shock wave |
| title | Study on JWL equation of state for the numerical simulation of near-field and far-field effects in underwater explosion scenario |
| title_full | Study on JWL equation of state for the numerical simulation of near-field and far-field effects in underwater explosion scenario |
| title_fullStr | Study on JWL equation of state for the numerical simulation of near-field and far-field effects in underwater explosion scenario |
| title_full_unstemmed | Study on JWL equation of state for the numerical simulation of near-field and far-field effects in underwater explosion scenario |
| title_short | Study on JWL equation of state for the numerical simulation of near-field and far-field effects in underwater explosion scenario |
| title_sort | study on jwl equation of state for the numerical simulation of near field and far field effects in underwater explosion scenario |
| topic | Underwater explosion Near-field effects Far-field effects JWL equation Detonation Shock wave |
| url | http://www.sciencedirect.com/science/article/pii/S2215098618310255 |
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