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Deformation and fracture behaviour of plate specimens subjected to underwater explosion - a review

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Title Deformation and fracture behaviour of plate specimens subjected to underwater explosion - a review
 
Creator RAJENDRAN, R
NARASIMHAN, K
 
Subject plate deformation
shock factor
impulse
deflection-time history
terminal strain to fracture
impulsive loads
shock response
square plates
 
Description Behaviour of plate specimens subjected to underwater explosion is of interest to metal forming community and ship designers. The break down of the original molecule of an explosive into product molecules associated with the evolution of large amount of heat generates a shock front in the water medium, followed by a gas bubble pulsation. The interaction of the shock wave with a plate imparts energy to it. which is dissipated in the form of deformation. The intensity of explosion determines whether a plate undergoes elastic deformation, yielding, plastic deformation or fracture. When the deformation is in the elastic range, the stress developed in the plate is given as a function of the material and shock wave parameters. As the intensity of explosion progressively increases, the elastic to plastic transition occurs over a specific shock factor. Plastic deformation is predicted as a function of geometric and material properties of the plate and shock pulse impulse. Deflection-time history reveals the reloading effects of the shock wave. As the deforming plate absorbs maximum energy, depending on its strength and ductility, it underizoes fracture. Terminal strain to fracture is considered as the criterion for explosive shock performance of ship materials. (C) 2005 Elsevier Ltd. All rights reserved.
 
Publisher PERGAMON-ELSEVIER SCIENCE LTD
 
Date 2011-10-13T19:31:13Z
2011-12-15T09:16:08Z
2011-10-13T19:31:13Z
2011-12-15T09:16:08Z
2006
 
Type Review
 
Identifier INTERNATIONAL JOURNAL OF IMPACT ENGINEERING,32(12)1945-1963
0734-743X
http://dx.doi.org/10.1016/j.ijimpeng.2005.05.013
http://dspace.library.iitb.ac.in/xmlui/handle/10054/13830
http://hdl.handle.net/100/3019
 
Language en