A composite sandwich plate with a novel core design
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Dosyalar
Tarih
2018
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Sci Ltd
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
In this study, a new core design is introduced for sandwich composite structures. Its strength and failure behavior are investigated via three-point bending tests. E-glass-fiber-reinforced epoxy resin is selected as the material for both the core and the face sheets. The core has an egg-crate shape. Acoustic emission (AE) method is used to detect the progression of damage. Signals due to elastic waves caused by activated damage mechanisms are investigated in order to identify the corresponding failure modes. A finite element model of the sandwich structure is developed to predict the failure behavior of the specimens under the loading conditions in the tests. A promising agreement between the results of the finite element model and the experiments is observed. The force-deflection-relation, the failure load as well as the region where damage initiates are accurately predicted.
Açıklama
Anahtar Kelimeler
Sandwich panels, Composite materials, Acoustic emission, Out-of-plane loading, Three-point bending, Finite element modeling, Cell Polycarbonate Honeycombs, Acoustic-Emission, Compressive Response, Failure Modes, Panels, Indentation, Damage, Behavior, Beams
Kaynak
Composite Structures
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
193
