TY - GEN
T1 - Evaluation of notched strength of thin-ply composite materials using adaptive discrete-smeared crack (A-DiSC) method
AU - Higuchi, Ryo
AU - Aoki, Ryoma
AU - Yokozeki, Tomohiro
AU - Onodera, Sota
AU - Okabe, Tomonaga
AU - Leong, Karh Heng
AU - Zhi, Jie
AU - Lu, Xin
AU - Tay, Tong Earn
N1 - Funding Information:
This work was supported by Council for Science, Technology and Innovation(CSTI), Cross-ministerial Strategic Innovation Promotion Program (SIP), “Materials Integration” for revolutionary design system of structural materials” (Funding agency: JST).
Publisher Copyright:
© ASC 2020.
PY - 2020
Y1 - 2020
N2 - This study develops a multi-fidelity fracture simulation scheme of composite materials which combines the Adaptive Discrete-Smeared Crack (A-DiSC) method and the theoretical model for saturated crack density. The A-DiSC employs the discrete crack model (DCM) firstly to model the transverse cracks in the laminates. If the crack density of each ply reaches the saturation value calculated by the theoretical model, the DCM is converted to the smeared crack model (SCM). At this point, some cracks that are longer than a certain critical length remain explicitly modelled by DCM since they can significantly affect subsequent path to final failure and fracture. By combining the two models, this method reduces the computational cost while preserving sufficient prediction accuracy. In order to verify the prediction accuracy of developed scheme, the simulation of the open-hole tensile test of thin-ply composite laminates were carried out, and predicted results were compared with the experiments.
AB - This study develops a multi-fidelity fracture simulation scheme of composite materials which combines the Adaptive Discrete-Smeared Crack (A-DiSC) method and the theoretical model for saturated crack density. The A-DiSC employs the discrete crack model (DCM) firstly to model the transverse cracks in the laminates. If the crack density of each ply reaches the saturation value calculated by the theoretical model, the DCM is converted to the smeared crack model (SCM). At this point, some cracks that are longer than a certain critical length remain explicitly modelled by DCM since they can significantly affect subsequent path to final failure and fracture. By combining the two models, this method reduces the computational cost while preserving sufficient prediction accuracy. In order to verify the prediction accuracy of developed scheme, the simulation of the open-hole tensile test of thin-ply composite laminates were carried out, and predicted results were compared with the experiments.
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M3 - Conference contribution
AN - SCOPUS:85097275863
T3 - Proceedings of the American Society for Composites - 35th Technical Conference, ASC 2020
SP - 1452
EP - 1465
BT - Proceedings of the American Society for Composites - 35th Technical Conference, ASC 2020
A2 - Pochiraju, Kishore
A2 - Gupta, Nikhil
PB - DEStech Publications
T2 - 35th Annual American Society for Composites Technical Conference, ASC 2020
Y2 - 14 September 2020 through 17 September 2020
ER -