Details
| Original language | English |
|---|---|
| Article number | 114471 |
| Number of pages | 12 |
| Journal | Composite structures |
| Volume | 276 |
| Early online date | 8 Aug 2021 |
| Publication status | Published - 15 Nov 2021 |
| Externally published | Yes |
Abstract
Failure processes in Laminated Fiber-Reinforced Composites (LFRCs) entail the development and progression of different physical mechanisms and, in particular, the interaction between inter-laminar and intra-laminar cracking. Reliable modeling of such complex scenarios can be achieved by developing robust numerical predictive tools that allow for the interaction of both failure modes. In this study, a novel Multi Phase-Field (MPF) model relying on the Puck theory of failure for intra-laminar failure at ply level is coupled with a Cohesive Zone Model (CZM) for inter-laminar cracking. The current computational method is numerically implemented as a system of non-linear coupled equations using the finite element method via user-defined UMAT and UEL subroutines in ABAQUS. The computational tool is applied to qualitatively predict delamination migration in long laminated fiber-reinforced polymers composites comprising 44 cross-ply laminates. The reliability of the current approach is examined via the correlation with experimental results. Finally, the present study is complemented with additional representative examples with the aim of providing further insight into the potential role of different aspects of the system in the delamination migration, including (i) the variation of the ply angle in the migration zone, (ii) the load application point, and (iii) initial crack length.
Keywords
- A. Fiber reinforced composites, B. Fracture mechanics, C. Finite Element Method (FEM), D. Phase-field fracture, E. Cohesive zone model
ASJC Scopus subject areas
- Materials Science(all)
- Ceramics and Composites
- Engineering(all)
- Civil and Structural Engineering
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In: Composite structures, Vol. 276, 114471, 15.11.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - A multi phase-field-cohesive zone model for laminated composites
T2 - Application to delamination migration
AU - Asur Vijaya Kumar, P. K.
AU - Dean, A.
AU - Reinoso, J.
AU - Paggi, M.
N1 - Funding Information: JR and AD are grateful to the Consejería de Economía y Conocimiento of the Junta de Andalucía (Spain) for financial support under the contract US-1265577-Programa Operativo FEDER Andalucía 2014-2020. JR acknowledges the support of the project PID2019-109723GB-I0 funded by the Spanish Ministry of Science and Innovation. Funding Information: The authors would like to thank the Italian Ministry of Education, University and Research (MIUR) for its support to the Project of Relevant National Interest (PRIN 2017) ''XFAST-SIMS: Extra fast and accurate simulation of complex structural systems'' (CUP: D68D19001260001).
PY - 2021/11/15
Y1 - 2021/11/15
N2 - Failure processes in Laminated Fiber-Reinforced Composites (LFRCs) entail the development and progression of different physical mechanisms and, in particular, the interaction between inter-laminar and intra-laminar cracking. Reliable modeling of such complex scenarios can be achieved by developing robust numerical predictive tools that allow for the interaction of both failure modes. In this study, a novel Multi Phase-Field (MPF) model relying on the Puck theory of failure for intra-laminar failure at ply level is coupled with a Cohesive Zone Model (CZM) for inter-laminar cracking. The current computational method is numerically implemented as a system of non-linear coupled equations using the finite element method via user-defined UMAT and UEL subroutines in ABAQUS. The computational tool is applied to qualitatively predict delamination migration in long laminated fiber-reinforced polymers composites comprising 44 cross-ply laminates. The reliability of the current approach is examined via the correlation with experimental results. Finally, the present study is complemented with additional representative examples with the aim of providing further insight into the potential role of different aspects of the system in the delamination migration, including (i) the variation of the ply angle in the migration zone, (ii) the load application point, and (iii) initial crack length.
AB - Failure processes in Laminated Fiber-Reinforced Composites (LFRCs) entail the development and progression of different physical mechanisms and, in particular, the interaction between inter-laminar and intra-laminar cracking. Reliable modeling of such complex scenarios can be achieved by developing robust numerical predictive tools that allow for the interaction of both failure modes. In this study, a novel Multi Phase-Field (MPF) model relying on the Puck theory of failure for intra-laminar failure at ply level is coupled with a Cohesive Zone Model (CZM) for inter-laminar cracking. The current computational method is numerically implemented as a system of non-linear coupled equations using the finite element method via user-defined UMAT and UEL subroutines in ABAQUS. The computational tool is applied to qualitatively predict delamination migration in long laminated fiber-reinforced polymers composites comprising 44 cross-ply laminates. The reliability of the current approach is examined via the correlation with experimental results. Finally, the present study is complemented with additional representative examples with the aim of providing further insight into the potential role of different aspects of the system in the delamination migration, including (i) the variation of the ply angle in the migration zone, (ii) the load application point, and (iii) initial crack length.
KW - A. Fiber reinforced composites
KW - B. Fracture mechanics
KW - C. Finite Element Method (FEM)
KW - D. Phase-field fracture
KW - E. Cohesive zone model
UR - http://www.scopus.com/inward/record.url?scp=85112810667&partnerID=8YFLogxK
U2 - 10.1016/j.compstruct.2021.114471
DO - 10.1016/j.compstruct.2021.114471
M3 - Article
AN - SCOPUS:85112810667
VL - 276
JO - Composite structures
JF - Composite structures
SN - 0263-8223
M1 - 114471
ER -