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Indexed by:期刊论文

Date of Publication:2018-01-15

Journal:COMPOSITE STRUCTURES

Included Journals:SCIE、EI

Volume:184

Page Number:256-268

ISSN No.:0263-8223

Key Words:Corrugated sandwich structure; Adhesive bonding; Failure mechanism; Three-point bending; Analytical model

Abstract: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.