Abstract
Using the general purpose finite element package Abaqus, an investigation has been carried out to examine the dynamic response of steel stiffened plates subjected to uniform blast loading. The main objective of this study is to determine the dynamic response of the stiffened plates considering the effect of stiffener configurations. Several parameters, such as boundary conditions, mesh dependency and strain rate, have been considered in this study. Special emphasis is focused on the evaluation of midpoint displacements and energy of models. The modeling techniques were described in details. The numerical results provide better insight into the effect of stiffener configurations on the nonlinear dynamic response of the stiffened plates subjected to uniform blast loading.
Highlights
Blast loads have received more attention in recent years because of accidental or intentional events related to important structures
Boundary conditions, fixing details and strain rate, which maybe affect the dynamic response of the plates subjected to blast loading were considered
In this paper the nonlinear dynamic response of square steel stiffened plates subjected to uniform blast loading was studied
Summary
Blast loads have received more attention in recent years because of accidental or intentional events related to important structures. Stiffened plates are among the most common structural elements. They are used in steel bridges, off-shore topsides, armor and blast-resistant doors. There has been an increased activity in blast loading research in the last two decades. Most of these were empirical research, but in recent years, modern computers and powerful finite element packages, facilitate the numerical study. Comparison between experimental and numerical responses of steel plates subjected to air blast loads has been indicated the accuracy of modern calculation methods and computational codes. There are differences between different codes because its shell elements definition
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