学術雑誌論文

学術雑誌論文

text

Philosophical Magazine. 2003, 83(4), p. 503-512

Elastic-stiffness coefficients of a silicon carbide fibre at elevated temperatures: Acoustic spectroscopy and micromechanics modelling

Taylor & Francis

英語

text

2003

https://doi.org/10.1080/0141861021000034559

This is an Accepted Manuscript of an article published by Taylor & Francis in Philosophical Magazine on 2003, available at http://wwww.tandfonline.com/10.1080/0141861021000034559.

We have determined all five independent elastic-stiffness coefficients Cij of a silicon carbide fibre with transverse isotropy from room temperature up to 873 K. Firstly, we measured the Cij of a titanium-alloy-matrix composite reinforced unidirectionally with the fibres and the matrix alloy alone. Electromagnetic acoustic resonance detected the free-vibration resonance frequencies of the specimens to determine their C ij. Secondly, we applied a micromechanics calculation to deduce the fibre Cij from the measured composite and matrix Cij. The resulting fibre Cij shows strong anisotropy in the temperature derivatives of the Cij; the temperature derivatives for the fibre-axis-direction Cij are much smaller than the others.

84474

Elastic-stiffness coefficients of a silicon carbide fibre at elevated temperatures: Acoustic spectroscopy and micromechanics modelling

Taylor & Francis

英語

2003

Philosophical Magazine

83

4

503

512

https://doi.org/10.1080/0141861021000034559

https://hdl.handle.net/11094/84474