Details
| Original language | English |
|---|---|
| Article number | 110892 |
| Journal | Composite structures |
| Volume | 223 |
| Early online date | 23 Apr 2019 |
| Publication status | Published - 1 Sept 2019 |
Abstract
Together with fiber breakage and matrix cracking, delamination is one of the common damage mechanisms occurring in laminated fiber-reinforced composite structures. Delamination initiates due to the relatively low interlaminar strength of adjacent plies. Delamination onset and propagation can be induced by various combinations of loads and usually leads to a significant reduction of the load-carrying capacity of the structure. For this reason, an efficient and reliable progressive failure analysis capability is required. In this work, the delamination process is simulated by means of a two-way global-local coupling approach. In particular, within this novel global-local approach a method is introduced that ensures the preservation of the dissipated energy when switching between the global and local level. This approach is tested and illustrated under single-mode I and II, and mixed-mode loading in the double cantilever beam (DCB), the end-notched flexure (ENF)and the mixed-mode bending (MMB)benchmark tests, respectively, and the results are compared to available analytical solutions. Finally, the developed method has been applied to a one-stringer stiffened panel and a good agreement was attained compared to the solid model reference solution.
Keywords
- Composite structures, DCB tests, Delamination, ENF tests, Global-local method, MMB tests, Multiscale analysis, Progressive failure analysis, Skin-stringer debonding
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Engineering(all)
- Civil and Structural Engineering
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In: Composite structures, Vol. 223, 110892, 01.09.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Progressive delamination analysis through two-way global-local coupling approach preserving energy dissipation for single-mode and mixed-mode loading
AU - Akterskaia, Margarita
AU - Camanho, Pedro P.
AU - Jansen, Eelco
AU - Arteiro, Albertino
AU - Rolfes, Raimund
N1 - Funding information: The research leading to these results has received funding from European Union’s Horizon 2020 research and innovation program (FULLCOMP/2015-2019) under Marie Sklodowska-Curie actions grant agreement number 642121. The provided financial support is gratefully acknowledged by the authors.
PY - 2019/9/1
Y1 - 2019/9/1
N2 - Together with fiber breakage and matrix cracking, delamination is one of the common damage mechanisms occurring in laminated fiber-reinforced composite structures. Delamination initiates due to the relatively low interlaminar strength of adjacent plies. Delamination onset and propagation can be induced by various combinations of loads and usually leads to a significant reduction of the load-carrying capacity of the structure. For this reason, an efficient and reliable progressive failure analysis capability is required. In this work, the delamination process is simulated by means of a two-way global-local coupling approach. In particular, within this novel global-local approach a method is introduced that ensures the preservation of the dissipated energy when switching between the global and local level. This approach is tested and illustrated under single-mode I and II, and mixed-mode loading in the double cantilever beam (DCB), the end-notched flexure (ENF)and the mixed-mode bending (MMB)benchmark tests, respectively, and the results are compared to available analytical solutions. Finally, the developed method has been applied to a one-stringer stiffened panel and a good agreement was attained compared to the solid model reference solution.
AB - Together with fiber breakage and matrix cracking, delamination is one of the common damage mechanisms occurring in laminated fiber-reinforced composite structures. Delamination initiates due to the relatively low interlaminar strength of adjacent plies. Delamination onset and propagation can be induced by various combinations of loads and usually leads to a significant reduction of the load-carrying capacity of the structure. For this reason, an efficient and reliable progressive failure analysis capability is required. In this work, the delamination process is simulated by means of a two-way global-local coupling approach. In particular, within this novel global-local approach a method is introduced that ensures the preservation of the dissipated energy when switching between the global and local level. This approach is tested and illustrated under single-mode I and II, and mixed-mode loading in the double cantilever beam (DCB), the end-notched flexure (ENF)and the mixed-mode bending (MMB)benchmark tests, respectively, and the results are compared to available analytical solutions. Finally, the developed method has been applied to a one-stringer stiffened panel and a good agreement was attained compared to the solid model reference solution.
KW - Composite structures
KW - DCB tests
KW - Delamination
KW - ENF tests
KW - Global-local method
KW - MMB tests
KW - Multiscale analysis
KW - Progressive failure analysis
KW - Skin-stringer debonding
UR - http://www.scopus.com/inward/record.url?scp=85065593680&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2019.110892
DO - 10.1016/j.compstruct.2019.110892
M3 - Article
AN - SCOPUS:85065593680
VL - 223
JO - Composite structures
JF - Composite structures
SN - 0263-8223
M1 - 110892
ER -