Buckling Analysis of Laminated Plates with Asymmetric Layup by Approximation Method

This study investigated thin-walled plate elements with a central cut-out under axial compression. The plates were manufactured from epoxy/carbon laminate (CFRP) with an asymmetric layup. The study involved analyzing the buckling and post-buckling behavior of the plates using experimental and numeri...

Full description

Saved in:
Bibliographic Details
Published in:Materials 2023-07, Vol.16 (14), p.4948
Main Authors: Falkowicz, Katarzyna, Wysmulski, Pawel, Debski, Hubert
Format: Article
Language:English
Subjects:
Approximation
Asymmetry
Axial compression
Cameras
Composite materials
Eigenvalues
Experiments
Finite element analysis
Finite element method
Initial geometric imperfections
Line intersections
Load
Mathematical analysis
Mathematical models
Mechanical properties
Nonlinear analysis
Numerical analysis
Numerical methods
Numerical models
Plates
Postbuckling
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study investigated thin-walled plate elements with a central cut-out under axial compression. The plates were manufactured from epoxy/carbon laminate (CFRP) with an asymmetric layup. The study involved analyzing the buckling and post-buckling behavior of the plates using experimental and numerical methods. The experiments provided the post-buckling equilibrium paths ( ), which were then used to determine the critical load using the straight-line intersection method. Along with the experiments, a numerical analysis was conducted using the Finite Element Method (FEM) and using the ABAQUS software. A linear analysis of an eigenvalue problem was conducted, the results of which led to the determination of the critical loads for the developed numerical model. The second part of the calculations involved conducting a non-linear analysis of a plate with an initial geometric imperfection corresponding to structural buckling. The numerical results were validated by the experimental findings, which showed that the numerical model of the structure was correct.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma16144948