 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 11223 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8011
|
| In English (Mech. Solids): | | 3212 |
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| Nagesh and N.K. Gupta, "Underwater Explosion (UNDEX) Phenomenon and Response of Marine Combatants to UNDEX Loading," Mech. Solids. 58 (1), 338-351 (2023) |
| Year |
2023 |
Volume |
58 |
Number |
1 |
Pages |
338-351 |
| DOI |
10.3103/S0025654422601318 |
| Title |
Underwater Explosion (UNDEX) Phenomenon and Response of Marine Combatants to UNDEX Loading |
| Author(s) |
Nagesh (Indian Navy, New Delhi, India, nagesh7nagesh@gmail.com)
N.K. Gupta (Applied Mechanics Department, IIT Delhi, New Delhi, India, nkgupta@am.iitd.ac.in) |
| Abstract |
This paper reviews prominent published works on UNDEX phenomenon and associated load characterization on structures subjected to UNDEX. An overview of characteristic events associated with UNDEX phenomenon resulting in a transient dynamic loading on the structure has been presented. A load characterization methodology for far-field UNDEX, based on empirical calculation of incident pressure load time history on the structure due to an explosive charge of known weight and standoff distance. The presented UNDEX load characterization includes the effect of FSI based on Taylor’s theory for the estimation of the modified transient pressure filed. Salient features in numerical modelling and simulations of non-linear structural responses and dynamic effects due to UNDEX have been highlighted. Significance of zoning from design against shock for shipboard equipment and scope of FEA numerical simulations using a high performance computing (HPC) setup for validation of loads corresponding to a given shock grade/standard, and its importance in optimizing platform designs against shock hardening requirements, have also been discussed briefly. |
| Keywords |
UNDEX phenomenon, fluid structure interaction, shock factor, impulsive loading, shock zones, shock response spectrum |
| Received |
24 September 2022 | Revised |
28 September 2022 | Accepted |
30 September 2022 |
| Link to Fulltext |
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