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An Influence of Cross-Sectional Features on the Stability and Load-Carrying Capacity of Carbon-Epoxy Composite Structures Cover

An Influence of Cross-Sectional Features on the Stability and Load-Carrying Capacity of Carbon-Epoxy Composite Structures

Open Access
|Sep 2025

Figures & Tables

Fig. 1.

Test specimens
Test specimens

Fig. 2.

Specimen in the Z100 Zwick electromechanical testing machine at DIC system
Specimen in the Z100 Zwick electromechanical testing machine at DIC system

Fig. 3.

Numerical model (with boundary conditions)
Numerical model (with boundary conditions)

Fig. 4.

Force versus shortening: a) specimen A-1, b) specimen B-1, c) specimen C-1
Force versus shortening: a) specimen A-1, b) specimen B-1, c) specimen C-1

Fig. 5.

Buckling modes: a) specimen A (FEM), b) specimen A (EXP), c) specimen B (FEM), d) specimen B (EXP), e) specimen C (FEM), c) specimen C (EXP)
Buckling modes: a) specimen A (FEM), b) specimen A (EXP), c) specimen B (FEM), d) specimen B (EXP), e) specimen C (FEM), c) specimen C (EXP)

Fig. 6.

Force versus shortening at the damage initiation stage: a) specimen B-1, b) specimen B-2, c) specimen B-3
Force versus shortening at the damage initiation stage: a) specimen B-1, b) specimen B-2, c) specimen B-3

Fig. 7.

Graphical representation of damage initiation for FEA simulations
Graphical representation of damage initiation for FEA simulations

Fig. 8.

Failure characteristics: a) specimen A-type, b) specimen B-type, c) specimen C-type
Failure characteristics: a) specimen A-type, b) specimen B-type, c) specimen C-type

Fig. 9.

Fracture modes: a) A specimen (FEM), b) A specimen (EXP), c) B specimen (FEM), d) B specimen (EXP), e) C specimen (FEM), c) C specimen (EXP)
Fracture modes: a) A specimen (FEM), b) A specimen (EXP), c) B specimen (FEM), d) B specimen (EXP), e) C specimen (FEM), c) C specimen (EXP)

Fig. 10.

The fracture stages - ply by ply: a) A-type, b) B-type, c) C-type
The fracture stages - ply by ply: a) A-type, b) B-type, c) C-type

Fig. 11.

The fracture phenomenon of A-type composite profile
The fracture phenomenon of A-type composite profile

Fig. 12.

The fracture phenomenon of A-type composite profile - detailed view of the failure form at orientation of the digital microscope head
The fracture phenomenon of A-type composite profile - detailed view of the failure form at orientation of the digital microscope head

Buckling force values

1 (EXP)2 (EXP)3 (EXP)EXPavgEXPSDFEMFEM/EXPavg
A19,169 N18,512 N19,002 N18,894 N279 N20,671 N1.09
B18,544 N18,892 N18,771 N18,736 N144 N19,556 N1.04
C13,818 N13,352 N13,284 N13,485 N237 N14,037 N1.04

Damage initiation force values

1 (EXP)2 (EXP)3 (EXP)EXPavgEXPSDFEMFEM/EXPavg
A20,234 N23,557 N21,042 N21,611 N1,415 N24,694 N1.14
B27,537 N26,916 N27,615 N27,356 N312 N28,679 N1.05
C31,081 N30,128 N30,304 N30,504 N414 N31,074 N1.02

Fracture force values

1 (EXP)2 (EXP)3 (EXP)EXPavgEXPSDFEMFEM/EXPavg
A35,047 N36,904 N40,121 N37,357 N2,096 N38,358 N1.03
B37,513 N40,139 N37,722 N38,458 N1,192 N38,703 N1.01
C39,800 N39,151 N40,573 N39,841 N581 N40,463 N1.02
DOI: https://doi.org/10.2478/ama-2025-0049 | Journal eISSN: 2300-5319 | Journal ISSN: 1898-4088
Language: English
Page range: 426 - 433
Submitted on: Apr 8, 2025
Accepted on: Aug 27, 2025
Published on: Sep 30, 2025
Published by: Bialystok University of Technology
In partnership with: Paradigm Publishing Services
Publication frequency: 4 issues per year

© 2025 Patryk RÓŻYŁO, Kuba ROSŁANIEC, published by Bialystok University of Technology
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.