Study on the fully nonlinear plastic failure of the transverse ring structure of a ship by using the finite element method
- National Cheng Kung Univ., Tainan (Taiwan, Province of China). Dept. of Naval Architecture and Marine Engineering
The continuum modeling of the finite element method is used to study the fully nonlinear plastic failure of the transverse ring structure of a ship. By using this finite element discretization, the connecting portions of structural members can be treated as two-dimensional deformable bodies. This condition can contribute to stress concentration and continuum development of plastic zones, which can better represent local and global mechanics behavior and accurately predict the fully nonlinear plastic failure of the transverse ring structure. The incremental/iterative procedure is used to update the response histories of the related nonlinear finite element systems. An accelerated iteration method, proposed by the present author, based on improving a modified Newton-Raphson scheme is used to obtain converged solutions of the discretized nonlinear algebraic systems. In analyzing the transverse ring structure of a ship, the response history is updated close to a fully nonlinear plastic failure load stage. The mechanics behavior of the structural members is studied.
- OSTI ID:
- 27920
- Report Number(s):
- CONF-940230--; ISBN 0-7918-1266-9
- Country of Publication:
- United States
- Language:
- English
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