One approach to numerical analysis of free vibrations of thin-walled structures

1982 ◽  
Vol 18 (11) ◽  
pp. 986-993
Author(s):  
Ya. M. Grigorenko ◽  
E. I. Bespalova ◽  
A. B. Kitaigorodskii ◽  
A. I. Shinkar'
Keyword(s):  
Numerical Analysis ◽  
Free Vibrations ◽  
Thin Walled Structures ◽  
Thin Walled

Some comments on the numerical analysis of plates and thin-walled structures

2008 ◽  
Vol 46 (7-9) ◽  
pp. 975-980 ◽  
Author(s):  
Federico Guarracino ◽  
Alastair Walker
Keyword(s):  
Numerical Analysis ◽  
Thin Walled Structures ◽  
Thin Walled

scholarly journals Fem and Experimental Analysis of Thin-Walled Composite Elements Under Compression

2017 ◽  
Vol 22 (2) ◽  
pp. 393-402 ◽  
Author(s):  
P. Różyło ◽  
P. Wysmulski ◽  
K. Falkowicz
Keyword(s):  
Numerical Analysis ◽  
Cross Section ◽  
Numerical Models ◽  
Fem Analysis ◽  
Geometrical Parameters ◽  
Loss Of Stability ◽  
Composite Columns ◽  
Thin Walled Structures ◽  
Operating Stability ◽  
Thin Walled

Abstract Thin-walled steel elements in the form of openwork columns with variable geometrical parameters of holes were studied. The samples of thin-walled composite columns were modelled numerically. They were subjected to axial compression to examine their behavior in the critical and post-critical state. The numerical models were articulately supported on the upper and lower edges of the cross-section of the profiles. The numerical analysis was conducted only with respect to the non-linear stability of the structure. The FEM analysis was performed until the material achieved its yield stress. This was done to force the loss of stability by the structures. The numerical analysis was performed using the ABAQUS® software. The numerical analysis was performed only for the elastic range to ensure the operating stability of the tested thin-walled structures.

scholarly journals Experimental and Numerical Analysis of a Composite Thin-Walled Cylindrical Structures with Different Variants of Stiffeners, Subjected to Torsion

Materials ◽  
2019 ◽  
Vol 12 (19) ◽  
pp. 3230 ◽  
Author(s):  
Tomasz Kopecki ◽  
Przemysław Mazurek ◽  
Tomasz Lis
Keyword(s):  
Numerical Analysis ◽  
Numerical Analyses ◽  
Modified Model ◽  
Cylindrical Structures ◽  
Local Loss ◽  
Thin Walled Structures ◽  
Non Linear ◽  
Thin Walled ◽  
Distribution Of Stress ◽  
The Impact

The aim of the study was to determine the impact of the use of isogrid stiffeners on the stress and displacement distribution of a thin-walled cylindrical shell made of layered composites subjected to torsion. It also strives to define criteria for assessing the results of non-linear numerical analysis of models of the examined structures by comparing them with the results of the model experiment. The study contains the results of experimental research using models made of glass–epoxy composites and the results of numerical analyses in non-linear terms. The experiment was carried out using a special test stand. The research involved two types of considered structures. The results of the research allowed to create the concept of an adequate numerical model in terms of the finite element method, allowing to determine the distribution of stress and strain in the components of the studied structures. Simultaneously, the obtained conformity between the results of non-linear numerical analyses and the experiment allows to consider the results of analyses of the modified model in order to determine the properties of different stiffening variants as reliable. The presented research allows to determine the nature of the deformation of composite thin-walled structures in which local loss of stability of the covering is acceptable in the area of post-critical loads.

scholarly journals Fuzzy logic expert system for calculating the parameters of coupled numerical analysis of the fluid and thin-walled structures interaction

Termotehnika ◽  
2015 ◽  
Vol 41 (1) ◽  
pp. 33-48
Author(s):  
Zoran Markovic ◽  
Slobodan Stupar ◽  
Mirko Dinulovic ◽  
Predrag Stefanovic ◽  
Dejan Cvetinovic
Keyword(s):  
Fuzzy Logic ◽  
Expert System ◽  
Numerical Analysis ◽  
Thin Walled Structures ◽  
Thin Walled ◽  
Fuzzy Logic Expert System
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