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Delamination of a High-temperature Sandwich Plate

Tipo de material: TextoTextoSeries ; Experimental Mechanics, 42, p.206-213, 2002Trabajos contenidos:
  • Liechti, K.M
  • Marton, B
Tema(s): Recursos en línea: Resumen: 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~ 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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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~ 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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