Mechanical Behavior of CFRP Lattice Core Sandwich Bolted Corner Joints

Mechanical Behavior of CFRP Lattice Core Sandwich Bolted Corner Joints The lattice core sandwich structures have drawn more attention for the integration of load capacity and multifunctional applications. However, the connection of carbon fibers reinforced polymer composite (CFRP) lattice core sandwich structure hinders its application. In this paper, a typical connection of two lattice core sandwich panels, named as corner joint or L-joint, was investigated by experiment and finite element method (FEM). The mechanical behavior and failure mode of the corner joints were discussed. The results showed that the main deformation pattern and failure mode of the lattice core sandwich bolted corner joints structure were the deformation of metal connector and indentation of the face sheet in the bolt holes. The metal connectors played an important role in bolted corner joints structure. In order to save the calculation resource, a continuum model of pyramid lattice core was used to replace the exact structure. The computation results were consistent with experiment, and the maximum error was 19%. The FEM demonstrated the deflection process of the bolted corner joints structure visually. So the simplified FEM can be used for further analysis of the bolted corner joints structure in engineering. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Applied Composite Materials Springer Journals

Mechanical Behavior of CFRP Lattice Core Sandwich Bolted Corner Joints

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Publisher
Springer Netherlands
Copyright
Copyright © 2017 by Springer Science+Business Media Dordrecht
Subject
Materials Science; Characterization and Evaluation of Materials; Classical Mechanics; Polymer Sciences; Industrial Chemistry/Chemical Engineering
ISSN
0929-189X
eISSN
1573-4897
D.O.I.
10.1007/s10443-016-9582-4
Publisher site
See Article on Publisher Site

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