Progressive failure analysis of thin-walled composite columns subjected to uniaxial compression

2017 ◽  
Vol 169 ◽  
pp. 52-61 ◽  
Author(s):  
Adrian Gliszczynski ◽  
Tomasz Kubiak
2013 ◽  
Vol 95 ◽  
pp. 53-62 ◽  
Author(s):  
Diego Cárdenas ◽  
Hugo Elizalde ◽  
Piergiovanni Marzocca ◽  
Frank Abdi ◽  
Levon Minnetyan ◽  
...  

2016 ◽  
Vol 154 ◽  
pp. 79-91 ◽  
Author(s):  
Juan A. Rivera ◽  
Enrique Aguilar ◽  
Diego Cárdenas ◽  
Hugo Elizalde ◽  
Oliver Probst

Materials ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1506
Author(s):  
Patryk Rozylo ◽  
Katarzyna Falkowicz ◽  
Pawel Wysmulski ◽  
Hubert Debski ◽  
Jakub Pasnik ◽  
...  

The paper analyzes the stability and failure phenomenon of compressed thin-walled composite columns. Thin-walled columns (top-hat and channel section columns) were made of carbon fiber reinforced polymer (CFRP) composite material (using the autoclave technique). An experimental study on actual structures and numerical calculations on computational models using the finite element method was performed. During the experimental study, post-critical equilibrium paths were registered with acoustic emission signals, in order to register the damage phenomenon. Simultaneously to the experimental tests, numerical simulations were performed using progressive failure analysis (PFA) and cohesive zone model (CZM). A measurable effect of the conducted experimental-numerical research was the analysis of the failure phenomenon, both for the top-hat and channel section columns (including delamination phenomenon). The main objective of this study was to be able to evaluate the delamination phenomenon, with further analysis of this phenomenon. The results of the numerical tests showed a compatibility with experimental tests.


Materials ◽  
2020 ◽  
Vol 13 (5) ◽  
pp. 1138 ◽  
Author(s):  
Patryk Rozylo ◽  
Miroslaw Ferdynus ◽  
Hubert Debski ◽  
Sylwester Samborski

The subject of the presented research was a thin-walled composite column made of CFRP (carbon-epoxy laminate). The test sample had a top-hat cross-section with a symmetrical arrangement of laminate layers [90/−45/45/0]s. The composite structure was subjected to the process of axial compression. Experimental and numerical tests for the loss of stability and load-carrying capacity of the composite construction were carried out. The numerical buckling analysis was carried out based on the minimum potential energy criterion (based on the solution of an eigenvalue problem). The study of loss of load-carrying capacity was performed on the basis of a progressive failure analysis, solving the problem of non-linear stability based on Newton-Raphson’s incremental iterative method. Numerical results of critical and post-critical state were confronted with experimental research in order to estimate the vulnerable areas of the structure, showing areas prone to damage of the material.


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