TY - JOUR
T1 - Influence of microstructural and environmental factors on the buckling performance of carbon nanotube-enhanced laminated composites
T2 - A multiscale analysis
AU - Georgantzinos, Stelios K.
AU - Antoniou, Panagiotis A.
AU - Stamoulis, Konstantinos P.
AU - Spitas, Christos
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2024/4
Y1 - 2024/4
N2 - This study introduces a detailed method for analyzing the buckling behavior of laminated composite structures strengthened with multi-walled carbon nanotubes (MWCNTs). We propose a multi-scale analysis that combines analytical and computational techniques to assess the mechanical performance of MWCNT-reinforced composites under combined moisture, temperature, and mechanical stress conditions. The Halpin-Tsai equations are used to calculate the overall stiffness properties of the nano-enhanced matrix, considering factors like MWCNT clustering, alignment, and curvature. Additionally, we incorporate the nanoscopic, size-dependent features of MWCNTs into our model. The Chamis micromechanical formulas are applied to determine the individual elastic properties of the nanocomposite layers, considering the impacts of temperature and moisture. We then explore how variables such as MWCNT content and size, along with temperature and moisture levels, influence the critical buckling load of MWCNT-based laminated composite beams and plates using our multi-scale model. Our results are successfully compared with existing experimental and theoretical data to validate our approach. The developed method offers significant insights for the design and optimization of MWCNT-reinforced composites, potentially benefiting various engineering fields, including aerospace and automotive industries.
AB - This study introduces a detailed method for analyzing the buckling behavior of laminated composite structures strengthened with multi-walled carbon nanotubes (MWCNTs). We propose a multi-scale analysis that combines analytical and computational techniques to assess the mechanical performance of MWCNT-reinforced composites under combined moisture, temperature, and mechanical stress conditions. The Halpin-Tsai equations are used to calculate the overall stiffness properties of the nano-enhanced matrix, considering factors like MWCNT clustering, alignment, and curvature. Additionally, we incorporate the nanoscopic, size-dependent features of MWCNTs into our model. The Chamis micromechanical formulas are applied to determine the individual elastic properties of the nanocomposite layers, considering the impacts of temperature and moisture. We then explore how variables such as MWCNT content and size, along with temperature and moisture levels, influence the critical buckling load of MWCNT-based laminated composite beams and plates using our multi-scale model. Our results are successfully compared with existing experimental and theoretical data to validate our approach. The developed method offers significant insights for the design and optimization of MWCNT-reinforced composites, potentially benefiting various engineering fields, including aerospace and automotive industries.
KW - Agglomeration
KW - Buckling
KW - Finite element
KW - Laminated composites
KW - MWCNTs
KW - Micromechanical model
KW - Moisture
KW - Orientation
KW - Temperature
KW - Waviness
UR - http://www.scopus.com/inward/record.url?scp=85184138282&partnerID=8YFLogxK
U2 - 10.1016/j.engfailanal.2024.108055
DO - 10.1016/j.engfailanal.2024.108055
M3 - Article
AN - SCOPUS:85184138282
SN - 1350-6307
VL - 158
JO - Engineering Failure Analysis
JF - Engineering Failure Analysis
M1 - 108055
ER -