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Selected Methods of Obtaining Adequate Forms of Deformation of Supercritical Thin-Walled Flat Plates
 
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Department of Aviation and Mechanical Engineering, Rzeszów University of Technology, Al. Powstańców Warszawy 8, 35-959 Rzeszów, Poland
CORRESPONDING AUTHOR
Tomasz Kopecki   

Department of Aviation and Mechanical Engineering, Rzeszów University of Technology, Al. Powstańców Warszawy 8, 35-959 Rzeszów, Poland
Publication date: 2021-06-01
 
Adv. Sci. Technol. Res. J. 2021; 15(2):184–190
 
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ABSTRACT
The study includes considerations on the numerical methods of obtaining the correct forms of deformation of thin-walled plates subjected to pure shear, operating under conditions of critical loads. Selected methods were presented and subjected to comparative tests, allowing for the obtaining of a state of large deformations of a perfectly flat system, loaded in its plane. These methods are based on application various forms of initial imperfections into the system, either geometrically or physically. A new solution was proposed in this area, differing in its essence from most commonly used solutions.