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The embedded single-fibre dynamic load test- a new non-destructive =nterphase

Tipo de material: TextoTextoSeries ; Composites, 25(7), p.770-775, 1994Trabajos contenidos:
  • Meretz, S
  • Lahser, K
  • Lehmann, V
  • Schwarze, H
  • Hampe, A
Tema(s): Recursos en línea: Resumen: Embedded single-fibre tests are commonly used to investigate fibre/matrix adhesion. However, unstable crack propagation renders these destructive tests hard to interpret. Most of the relevant theories apply an energy or a strength criterion to indirectly deduce interphase properties from the obtained results. A new method, the embedded single-fibre dynamic load (SFD)test, was developed to measure interphasial viscoelastic properties directly in a non-destructive way. Using different fibres in combination with poly(phenylene sulfide)in a comparative study, it is shown that results from the SFD test correlate well with those from single-fibre pull-out (SFP)tests. The morphology is established as a key link for an understanding of the fracture behaviour as well as the dynamic-mechanical behaviour of the interphase in fibre-reinforced composites.
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Embedded single-fibre tests are commonly used to investigate fibre/matrix adhesion. However, unstable crack propagation renders these destructive tests hard to interpret. Most of the relevant theories apply an energy or a strength criterion to indirectly deduce interphase properties from the obtained results. A new method, the embedded single-fibre dynamic load (SFD)test, was developed to measure interphasial viscoelastic properties directly in a non-destructive way. Using different fibres in combination with poly(phenylene sulfide)in a comparative study, it is shown that results from the SFD test correlate well with those from single-fibre pull-out (SFP)tests. The morphology is established as a key link for an understanding of the fracture behaviour as well as the dynamic-mechanical behaviour of the interphase in fibre-reinforced composites.

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