TY - JOUR
T1 - An experimental study on the influence of intralaminar damage on interlaminar delamination properties of laminated composites
AU - Hu, Ping
AU - Pulungan, Ditho Ardiansyah
AU - Tao, Ran
AU - Lubineau, Gilles
N1 - KAUST Repository Item: Exported on 2020-10-01
Acknowledged KAUST grant number(s): BAS/1/1315-01-01
Acknowledgements: The research reported in this publication was supported by funding from King Abdullah University of Science and Technology (KAUST) Baseline Research Funds, under award number BAS/1/1315-01-01.
PY - 2020/1/24
Y1 - 2020/1/24
N2 - Coupling between intralaminar and interlaminar damage plays a significant role in accurately predicting delamination and final failure. However, insufficient experimental data are available for models of this phenomenon. In this paper, we proposed a two-step experiment on cross-ply laminates to quantitatively study the influence of in-plane strain on the interlaminar fracture toughness. First, we performed a tensile test on the [02/902]s cross-ply laminates to introduce various extents of intralaminar damage. Next, we bonded a backing adherend of [06] plies to the cross-ply, so we could probe the delamination properties through a subsequent double cantilever beam (DCB) test. We identified the effective fracture toughness Gc,eff by the compliance calibration method. We found that intralaminar damage promotes fiber bridging in the transverse direction, which finally influence the out-of-plane properties significantly.
AB - Coupling between intralaminar and interlaminar damage plays a significant role in accurately predicting delamination and final failure. However, insufficient experimental data are available for models of this phenomenon. In this paper, we proposed a two-step experiment on cross-ply laminates to quantitatively study the influence of in-plane strain on the interlaminar fracture toughness. First, we performed a tensile test on the [02/902]s cross-ply laminates to introduce various extents of intralaminar damage. Next, we bonded a backing adherend of [06] plies to the cross-ply, so we could probe the delamination properties through a subsequent double cantilever beam (DCB) test. We identified the effective fracture toughness Gc,eff by the compliance calibration method. We found that intralaminar damage promotes fiber bridging in the transverse direction, which finally influence the out-of-plane properties significantly.
UR - http://hdl.handle.net/10754/661152
UR - https://linkinghub.elsevier.com/retrieve/pii/S1359835X2030021X
UR - http://www.scopus.com/inward/record.url?scp=85078487559&partnerID=8YFLogxK
U2 - 10.1016/j.compositesa.2020.105783
DO - 10.1016/j.compositesa.2020.105783
M3 - Article
VL - 131
SP - 105783
JO - Composites Part A: Applied Science and Manufacturing
JF - Composites Part A: Applied Science and Manufacturing
SN - 1359-835X
ER -