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Local Effects Induced by Core Junctions in Sandwich Beams under General Loading Conditions

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Sandwich Structures 7: Advancing with Sandwich Structures and Materials

Abstract

Local effects occurring near junctions between different cores in sandwich structures subjected to axial and transverse forces and bending moments are considered. These local effects are associated with large stress concentrations in the faces and the core near the core junctions. The local effects are studied for two typical cases representing industrial applications. Finite element analyses show that significant stress concentrations are induced near core junctions subjected to transverse, tension/compression as well as bending loads. Finally, improved designs of core junctions are discussed.

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References

  1. Zenkert D. (ed.), The Handbook of Sandwich Construction, EMAS Publishing, London, 1997.

    Google Scholar 

  2. Shenoi R.A. and Wellicome J.F. (eds), Composite Materials in Maritime Structures, Cambridge University Press, 1993.

    Google Scholar 

  3. Zenkert, D., “Effect of manufacture-induced flaws on the strength of foam core sandwich beams”, in Proceedings of International Symposium on Damage Detection and Quality Assurance in Composite Materials, ASTM Special Technical Publication 1128, 1992, pp. 137–151.

    Google Scholar 

  4. Skvortsov, V. and Thomsen, O.T., “Analytical estimates for the stresses in face sheets of sandwich panels at the junctions between different core materials”, Proceedings of the 6-th International Conference on Sandwich Structures (ICSS-6), Ft. Lauderdale, Florida, 2003, CRC Press, New York, 2003, pp. 501–509.

    Google Scholar 

  5. Bozhevolnaya, E., Thomsen, O.T., Kildegaard, A. and Skvortsov, V., “Local effects across core junctions in sandwich panels”, Composites. Part B: Engineering, Vol. 34, 2003, pp. 509–517.

    Article  Google Scholar 

  6. Bozhevolnaya, E., Lyckegaard., L., Thomsen, O.T. and Skvortsov, V., “Local effects in the vicinity of inserts in sandwich panels”, Composites. Part B: Engineering, Vol. 35, 2004, pp. 619–627.

    Article  Google Scholar 

  7. Pageau, S.S., Joseph, P.F. and Biggers, S.B., Jr., “The order of stress singularities for bonded and disbonded three-material junctions”, International Journal of Solids and Structures, Vol. 31,No. 21, 1994, pp. 2979–2997.

    Article  Google Scholar 

  8. Ribeiro-Ayeh, S. and Hallström, S., “Strength prediction of beams with bimaterial butt joints”, Engineering Fracture Mechanics, Vol. 70, 2003, pp. 1491–1507.

    Article  Google Scholar 

  9. Technical Manual H-grade: Divinycell®, DIAB Group, 2003.

    Google Scholar 

  10. Bozhevolnaya, E., Lyckegaard, A., Jakobsen, L. and Thomsen, O.T., Sandwich Panel and a Method of Producing a Sandwich Panel, Application No./Patent No. 03027020.1, 2003.

    Google Scholar 

  11. Bozhevolnaya, E. and Thomsen, O.T., “Structurally graded core junctions in sandwich beams: Quasi static loading conditions”, Composite Structures, in press.

    Google Scholar 

  12. Bozhevolnaya, E. and Thomsen, O.T., “Structurally graded core junctions in sandwich beams: Fatigue loading conditions”, Composite Structures, in press.

    Google Scholar 

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© 2005 Springer

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Bozhevolnaya, E., Lyckegaard, A., Thomsen, O.T. (2005). Local Effects Induced by Core Junctions in Sandwich Beams under General Loading Conditions. 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_7

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  • DOI: https://doi.org/10.1007/1-4020-3848-8_7

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-1-4020-3444-2

  • Online ISBN: 978-1-4020-3848-8

  • eBook Packages: EngineeringEngineering (R0)

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