Failure analysis of adhesively bonded steel corrugated sandwich structures under three-point bending

Failure modes and critical loads for adhesively bonded steel corrugated sandwich structure under three-point bending in both longitudinal and transverse direction are investigated. An analytical model considering both adhesive joint effects and classic beam theory is developed for predicting the fai...

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Bibliographic Details
Published in:Composite structures 2018-01, Vol.184, p.256-268
Main Authors: Yu, Ye, Ying, Liang, Hou, Wen-bin, Hu, Ping, Jia, Xiu-xian, Akhmet, Ganiy
Format: Article
Language:English
Subjects:
Adhesive bonding
Analytical model
Corrugated sandwich structure
Failure mechanism
Three-point bending
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Summary:Failure modes and critical loads for adhesively bonded steel corrugated sandwich structure under three-point bending in both longitudinal and transverse direction are investigated. An analytical model considering both adhesive joint effects and classic beam theory is developed for predicting the failure modes and stresses in each member of the sandwich structure. Then the corresponding experiments and the numerical analysis by using cohesive zone model are also carried out. The experimental data, numerical results and the analytical predictions are all agree well with each other. Furthermore, based on the analytical expressions, the failure mechanism maps for three-point bending are constructed to get better understanding of failure modes and minimum weight design. Besides, the effects of adhesive parameters on failure modes and stress distribution are further studied by using the analytical model.
ISSN:0263-8223
1879-1085
DOI:10.1016/j.compstruct.2017.10.011