Optimum shape for buckling and post-buckling behavior of a laminated composite panel with I-type stiffeners

2002 ◽  
Vol 16 (10) ◽  
pp. 1211-1221 ◽  
Author(s):  
Gwang-Rog Lee ◽  
Won-Ho Yang ◽  
Myung-Won Suh
Keyword(s):  
Laminated Composite ◽  
Composite Panel ◽  
Optimum Shape ◽  
Buckling Behavior ◽  
Post Buckling

Numerical and Experimental Buckling and Post - Buckling Analysis of Composite Cylindrical Panel with Delamination

2013 ◽  
Vol 477-478 ◽  
pp. 39-42
Author(s):  
Marek Barski ◽  
Aleksander Muc ◽  
Przemysław Pastuszak ◽  
Agnieszka Bondyra
Keyword(s):  
Numerical Analysis ◽  
Experimental Verification ◽  
Experimental Analysis ◽  
Cylindrical Panel ◽  
Composite Panel ◽  
Fem Method ◽  
Buckling Behavior ◽  
Post Buckling ◽  
The Stability ◽  
Composite Cylindrical Panel

The present work is devoted to the analysis of a buckling behavior of a cylindrical composite panel. The considered structure is subjected to the uniform axial compression. The wall of the panel consists of the 8 layers. In addition, in the geometrical center of the structure there is a square delamination located between the fourth and the fifth layer. The main goal is to determine the buckling and post - buckling behavior as well as the influence of the delamination on the stability of the structure. The nonlinear numerical analysis is carried out with aid of the FEM method. The experimental verification is also performed. The results obtained from numerical and experimental analysis show very similar behavior of the structure.

Numerical Studies on Buckling and Post-Buckling Behavior of Stiffened Curved Composite Panel with Repairs

2019 ◽  
Author(s):  
WARUNA SENEVIRATNE ◽  
VISHNU SASEENDRAN ◽  
SHENAL PERERA ◽  
BRANDON SAATHOFF ◽  
LAKSHAN RUBESINGHE ◽  
...  
Keyword(s):  
Composite Panel ◽  
Numerical Studies ◽  
Buckling Behavior ◽  
Post Buckling

Relative Post-Buckling Stiffness Calculation of Symmetrically Laminated Composite Plates Using an Exact Finite Strip

2010 ◽  
Vol 123-125 ◽  
pp. 201-204 ◽  
Author(s):  
Seyyed Amir Mahdi Ghannadpour ◽  
Hamid Reza Ovesy
Keyword(s):  
Laminated Composite ◽  
Composite Plates ◽  
Unknown Coefficient ◽  
Laminated Composite Plates ◽  
Total Strain Energy ◽  
Finite Strip ◽  
Finite Strip Method ◽  
Buckling Behavior ◽  
Out Of Plane ◽  
Post Buckling

This paper presents the theoretical developments of an exact finite strip for the buckling and initial post-buckling analyses of symmetrically laminated composite plates. The so-called exact finite strip is developed based on the concept that it is effectively a plate. The present method, which is designated by the name Full-analytical Finite Strip Method in this paper, provides an efficient and extremely accurate buckling solution. In the development process, the Von-Karman’s equilibrium equation is solved exactly to obtain the buckling loads and the corresponding form of out-of-plane buckling deflection modes. The investigation of thin flat plate buckling behavior is then extended to an initial post-buckling study with the assumption that the deflected form immediately after the buckling is the same as that obtained for the buckling. The post-buckling study is effectively a single-term analysis, which is attempted by utilizing the so-called semi-energy method. In this method, the Von-Karman’s compatibility equation governing the behavior of symmetrically laminated composite plates is used together with a consideration of the total strain energy of the plate. Through the solution of the compatibility equation, the in-plane displacement functions are developed in terms of the unknown coefficient in the assumed out-of-plane deflection function. These in-plane and out-of-plane deflected functions are then substituted in the total strain energy expressions and the theorem of minimum total potential energy is applied to solve for the unknown coefficient. The developed method is subsequently applied to analyze the initial post-buckling behavior of some representative thin flat plates for which the results are also obtained through the application of a semi-analytical finite strip method. Through the comparison of the results and the appropriate discussion, the knowledge of the level of capability of the developed method is significantly promoted.

scholarly journals Post-Buckling Behavior of Laminated Composite Cylindrical Shells Subjected to Axial, Bending and Torsion Loads

2015 ◽  
Vol 03 (04) ◽  
pp. 185-194 ◽  
Author(s):  
Yengula Venkata Narayana ◽  
Jagadish Babu Gunda ◽  
Ravinder Reddy Pinninti ◽  
Markandeya Ravvala
Keyword(s):  
Cylindrical Shells ◽  
Laminated Composite ◽  
Buckling Behavior ◽  
Post Buckling ◽  
Composite Cylindrical Shells

Robust improvement of the asymmetric post-buckling behavior of a composite panel by perturbing fiber paths

2021 ◽  
pp. 114011
Author(s):  
Sander den Broek ◽  
Sergio Minera ◽  
Eelco Jansen ◽  
Raimund Rolfes
Keyword(s):  
Composite Panel ◽  
Buckling Behavior ◽  
Post Buckling
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