Dynamic Response on Stiffened Plate Subjected to Air Explosive Loading

2011 ◽  
Vol 486 ◽  
pp. 183-186 ◽  
Author(s):  
Jian He ◽  
Ben Yang Wang ◽  
Ming Wei Zhu ◽  
Hui Zhao Sun
Keyword(s):  
Dynamic Response ◽  
Orthotropic Plate ◽  
Explosive Loading ◽  
Motion Equation ◽  
Stiffened Plate ◽  
Structure Form ◽  
Maximum Deformation ◽  
Lagrange’S Equation ◽  
Common Structure ◽  
Plate And Shell

Stiffened plate is a common structure form in plate and shell structure. There are important theoretical significance and project application value on studying dynamic response of stiffened plate subjected to air explosive loading. The motion equation of orthotropic plate which subjected to explosive loading is established adopting Lagrange’s equation of motion, and the stiffened plate where the stiffener is arranged uniformly is treated as textural orthotropic plate. Then the motion equation of the orthotropic plate is converted into motion equation of the stiffened plate. Therefore the maximum deformation of stiffened plate can be determined.

scholarly journals Dynamic response of equivalent orthotropic plate model for stiffened plate: numerical-experimental assessment

2017 ◽  
Vol 199 ◽  
pp. 1423-1428 ◽  
Author(s):  
Giuseppe Battaglia ◽  
Alberto Di Matteo ◽  
Antonina Pirrotta ◽  
Giorgio Micale
Keyword(s):  
Dynamic Response ◽  
Orthotropic Plate ◽  
Plate Model ◽  
Stiffened Plate ◽  
Experimental Assessment

scholarly journals Study on stability analysis of gravity wharf structure in Fujian

2019 ◽  
Vol 136 ◽  
pp. 04082
Author(s):  
Jiaying Zhang ◽  
Bin Li
Keyword(s):  
Stability Analysis ◽  
Seismic Load ◽  
Rock Foundation ◽  
Structure Form ◽  
Port Operation ◽  
Common Structure ◽  
Potential Factors ◽  
Port Engineering ◽  
Important Significance

Gravity wharf is a common structure form in port engineering, and it is appropriate for rock foundation or the area of shallow buried bearing stratum. In this paper, stability analysis of gravity wharf and breakwater structure under seismic load in Fujian is studied, the potential factors of instability and corresponding repairing measures are put forward. These results have important significance to ensure the port operation safety and economize investment.

A Parametric Approach for the Stress Analysis of Orthogonally Stiffened Rectangular Plates

1983 ◽  
Vol 105 (4) ◽  
pp. 363-368 ◽  
Author(s):  
R. J. Dohrmann ◽  
J. N. Wu ◽  
R. E. Beckett
Keyword(s):  
Stress Analysis ◽  
Orthotropic Plate ◽  
Plate Thickness ◽  
Normal Pressure ◽  
Rectangular Plates ◽  
Maximum Deflection ◽  
Stiffened Plate ◽  
Parametric Approach ◽  
Simply Supported ◽  
Plate Geometry

This report describes a parametric approach for the stress analysis of orthogonally stiffened rectangular plates. The analysis assumes that the deflection of an orthogonally stiffened plate is approximated by a homogeneous orthotropic plate of a uniform thickness. Polynomial expressions for maximum deflection for two sets of boundary conditions (all edges clamped and two edges clamped–two edges simply supported) are presented in terms of plate geometry and loading (normal pressure and in-plane forces). A method for computing the stress is presented that permits stresses in the actual orthogonally stiffened plate (that generally does not have a uniform plate thickness) to be determined.

Limit Deformation Analysis of Rectangular Stiffened Plate to Near-Filed Explosions

2012 ◽  
Vol 468-471 ◽  
pp. 1907-1911
Author(s):  
Jian He ◽  
Gui Sheng Xue ◽  
Yuan Gao
Keyword(s):  
High Capacity ◽  
Blast Loading ◽  
Deformation Analysis ◽  
Stiffened Plate ◽  
Equivalent Stiffness ◽  
Theoretical Derivation ◽  
Maximum Deformation ◽  
Finite Element Software ◽  
Engineering Significance ◽  
Theoretical Results

Stiffened plate is used widely in ship structure for its high capacity and light weight so studying the limit of deformation of stiffened plates under blast loading has important engineering significance. The blast loading is simplified to triangle with only ascending stage and equivalent stiffness at all directions and every parameter of the stiffened plate are calculated so the maximum deformation can be solved finally. The dynamic response of rectangle stiffened plate under blast loading was simulated by non-linear finite element software and got the maximum deformation of the plate .The simulative results are consistent with the theoretical results. At the same time, the displacement and velocity of all directions at three different points can be got from the simulation and related theoretical derivation is proved correctly by analyzing the simulative results.

Influence of the Stiffeners on the Vibration Characteristics of a Stiffened Plate and Shell Coupled Structure

2012 ◽  
Vol 248 ◽  
pp. 101-106 ◽  
Author(s):  
Zhi Mei Zhao ◽  
Mei Ping Sheng
Keyword(s):  
Vibration Characteristics ◽  
Level Curve ◽  
Stiffened Plate ◽  
Coupled Vibration ◽  
Frequency Range ◽  
Stiffened Cylindrical Shell ◽  
Acceleration Level ◽  
Plate And Shell ◽  
Vibration Model ◽  
Receptance Method

A coupled vibration model of a stiffened cylindrical shell with a stiffened interior plate is established based on the receptance method to get the stiffeners' influence on the plate-shell coupled structure's vibration characteristics. Numerical analysis on how an increase of the plate's and the shell's stiffener number affect the combination's vibration is carried out. It shows that the amplitudes of both the plate's and the shell's acceleration levels would reduce and peaks of their vibration curves would shift to the higher frequency range as stiffeners on the plate increases. And increase of the shell's stiffener number has little impact on the plate's acceleration level curve except for some peaks, but it would reduce the shell's acceleration level.

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