Abstract
In practical sandwich constructions it is often necessary to reinforce the core with high strength inserts to facilitate concentrated loads. The junction between the main core and the core insert is a potential weak spot of the sandwich structure. This section of the sandwich structure is investigated using finite element analysis and the results are compared with experimental data. Furthermore, parameters concerning the shape of the core junction are investigated using finite element analysis.
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References
D. Zenkert. An Introduction to Sandwich Construction. Chameleon Press, London, 1995.
H.G. Allen. Analysis and design of structural sandwich panel. Pergamon Press, 1969.
V.S. Skvortsov and O.T. Thomsen. Analytical estimates for the stresses in face sheets of sandwich panels at junctions between different core materials. In J.R. Vinson, Y.D.S. Rajapakse and L.A. Carlson (eds), 6th International Confernce on Sandwich Structures, pp. 551–559. CRC Press, 2003.
SP Product Catalogue, 2004.
SP Systems, Newport, Isle of Wright, UK. SE 84 Low Temperature Cure Epoxy Prepreg System.
D.J. Ewins. Modal Testing:Theory and Practice. Research Studies Press Ltd., 1985.
Annual Book of ASTM Standards. Standard Test Method for Young’s Modules, Tangent Modulus, and Chord Modulus, E111-82 edition, August 1982. reapproved 1988.
DIAB Group. Technical Manual H-grade: Divinycell® 2003.
ANSYS Release 9.0 Documentation.
S.S. Pageau, P.F. Joseph and S.B. Biggers, Jr. The order of stress singularities for bonded and disbonded three-material junctions. International Journal of Solids and Structures, 31(21):2979–2997, 1994.
S. Ribeiro-Ayeh and S. Hallström. Strength prediction of beams with bimaterial butt-joints. Engineering Fracture Mechanics, 70:1491–1507, 2003.
Hallström S. and J.L. Grenestedt. Mixed mode fracture of cracks and wedge shaped notches in expanded PVC foam. International Journal of Fracture, 88:343–358, 1997.
E. Bozhevolnaya, A. Lyckegaard, L. Jakobsen, and O.T. Thomsen. Sandwich panel and a method of producing a sandwich panel. application, 2003. Application No./Patent No. 03027020.1.
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Lyckegaard, A., Bozhevolnaya, E., Thomsen, O.T. (2005). Parametric Study of Structurally Graded Core Junctions. In: Thomsen, O., Bozhevolnaya, E., Lyckegaard, A. (eds) Sandwich Structures 7: Advancing with Sandwich Structures and Materials. Springer, Dordrecht. https://doi.org/10.1007/1-4020-3848-8_6
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DOI: https://doi.org/10.1007/1-4020-3848-8_6
Publisher Name: Springer, Dordrecht
Print ISBN: 978-1-4020-3444-2
Online ISBN: 978-1-4020-3848-8
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