Transient dynamic response of submerged sphere shell with an opening subjected to underwater explosion

Abstract This investigation applies the time domain FEM/DAA coupling procedure to predict the transient dynamic response of submerged sphere shell with an opening subjected to underwater explosions. The elastic–plastic material behavior of the transient fluid–structure interaction relate to structural response equation also presented herein. This analysis also examines the transient responses of structures to different charge distances. The effects of standoff distance on pressure time history of the shell to underwater explosion (3001b TNT) are presented. Additionally, the transient dynamic responses to underwater explosion shockwaves in the sea and the air are compared.

[1]  Young W. Kwon,et al.  Comparison of USA-DYNA finite element models for a stiffened shell subject to underwater shock , 1998 .

[2]  T. Hughes,et al.  Collocation, dissipation and [overshoot] for time integration schemes in structural dynamics , 1978 .

[3]  Thomas L. Geers.  Residual Potential and Approximate Methods for Three‐Dimensional Fluid‐Structure Interaction Problems , 1971 .

[4]  Ching-Yu Hsu,et al.  A study of transient responses of a submerged spherical shell under shock waves , 2001 .

[5]  W Watson.  THE DESIGN, CONSTRUCTION, TESTING, AND OPERATION OF A DEEP-DIVING SUBMERSIBLE FOR OCEAN FLOOR EXPLORATION , 1971 .

[6]  Wing Kam Liu,et al.  Nonlinear Finite Elements for Continua and Structures , 2000 .

[7]  K. Y. Lam,et al.  Structural analysis of a submarine pipeline subjected to underwater shock , 2000 .

[8]  W. Drugan,et al.  Theory of plasticity , 1987 .

[9]  Seng Tjhen Lie,et al.  Spline shell element and plane-wave approximation for dynamic response of submerged structures , 2001 .

[10]  Conrad P. Heins,et al.  Applied plate theory for the engineer , 1976 .

[11]  J. Harvey Evans,et al.  Ocean engineering structures , 1969 .

[12]  Thomas L. Geers,et al.  Doubly asymptotic approximations for transient motions of submerged structures , 1978 .

[13]  Linlin Huang.  An interfacing strategy for fluid-structure interaction with application to linear hydroelasticity , 2004 .

[14]  Y. S. Shin,et al.  Damage response of submerged imperfect cylindrical structures to underwater explosion , 1996 .

[15]  Hao Dong,et al.  Stress-strain characteristics of the heat-affected zone in an HY-100 weldment as determined by microindentation testing , 1996 .