Shock and Vibration

Shock and Vibration / 1994 / Article

Open Access

Volume 1 |Article ID 375854 | https://doi.org/10.3233/SAV-1994-1408

V. Bhujanga Rao, R. Rajendran, A.V. Jaykumar, K.H.B.S. Satyanarayana, "Metallurgical Investigation of HSLA Steel Subjected to Underwater Explosion", Shock and Vibration, vol. 1, Article ID 375854, 10 pages, 1994. https://doi.org/10.3233/SAV-1994-1408

Metallurgical Investigation of HSLA Steel Subjected to Underwater Explosion

Received12 Jan 1993
Accepted10 Dec 1993

Abstract

The metallurgical behaviour of HSLA steel subjected to underwater explosion is of prime importance because of its structural applications in underwater vehicles. HSLA steel plates 300 × 250 × 4 mm were subjected to single and repetitive shock loadings and the point of rupture was identified. Test plates exhibited mode-I (large ductile deformation) and mode-II (tensile tearing) macroscopic failures. Electron micrographic and fractographic examination showed that the initiation of fracture was due to adiabatic shearing and the microscopic mode of failure was ductile. Plates subjected to single shock showed an increase in residual hardness and at the point of rupture it was approximately one-third higher than the initial residual hardness.

Copyright © 1994 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


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