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Delamination of a high-temperature sandwich plate

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Abstract

This paper describes the development of a method for determining the fracture toughness of the core/faceplate bond in high-temperature sandwich plates. The tensile deformation behavior of a sandwich element was also determined. The results from the latter experiment were used in a beam on elastic foundation analysis of the fracture specimen. The faceplate/core toughness was determined at 23 and 180°C. The room temperature toughness was slightly higher and, in both cases, the toughness decreased with crack length. The higher toughness was associated with a greater degree of interlaminar failure in the faceplates, as opposed to core-pullout.

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Authors and Affiliations

  1. Research Center, Mechanics of Solids, Structures and Materials, University of Texas at Austin, 78712, Austin, TX, USA

    Kenneth M. Liechti (Professor) & Balázs Marton (Graduate Research Assistant)

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  1. Kenneth M. Liechti
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  2. Balázs Marton
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Liechti, K.M., Marton, B. Delamination of a high-temperature sandwich plate. Experimental Mechanics 42, 206–213 (2002). https://doi.org/10.1007/BF02410885

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  • DOI: https://doi.org/10.1007/BF02410885

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