Ship Shock Modeling of Underwater Explosion

Abstract:

Ship shock tests have been conducted for shock qualification of hull integrity and proper operation systems and subsystems. The ship shock trial identifies design and construction and it also validates shock hardening criteria. The main problem is that ship shock trials are costly. Numerical modeling and simulation, using FEM, may provide information to look into the details of fluid model, dynamic characteristics of ship hull and its internal component. The ship shock modeling and simulation has been performed and the predicted results were compared with ship shock test data made into sea trials. The preliminary studies of shock analysis approach is presented and the important parameters are discussed.

• Periodical: Solid State Phenomena (Volume 180)
• Pages: 288-296
• DOI: https://doi.org/10.4028/www.scientific.net/SSP.180.288
• Online since: November 2011
• Authors: Andrzej Grządziela
• Keywords: Modeling, Ships Hull, Shock Wave, Underwater Detonation

References

[1] Cole RH. Underwater explosions. Princeton University Press; 1948.

[2] Young S. Shin: Ship shock modeling and simulation for far-field underwater explosion, Computers and Structures 82 (2004) 2211–2219, pp

DOI: 10.1016/j.compstruc.2004.03.075

[3] DeRuntz Jr JA. The underwater shock analysis code and its application. Proc 60th Shock Vib Symp 1989;1: 89–107.

[4] Costanzo FA, Gordon JD. An analysis of bulk cavitation in deep water. DTNSRDC, UERD Report, May, (1980)

[5] Hallquist JO. LS-DYNA Theoretical Manual, Livermore Software Technology Corporation, Livermore, CA, May, 1998.

[6] Malone PE, Shin YS. Sensitivity analysis of coupled fluid volume to ship shock simulation. Proc 71st Shock Vib Symp 2000.