Abstract
For composites under gradient heating up to very high temperatures 1500–2000 \({}^\circ \)C, linear (surface) ablation must be considered in addition to volumetric ablation. The definitions and classification of linear ablation processes were given in Sect. 1.2. The purpose of the present chapter is to establish relationships for the calculation of the linear rate D for different types of surface ablation: combustion, sublimation, melting and thermomechanical erosion of composites. Since effective elasticity and heat conductivity moduli connect characteristics of a composite with properties of its separate phases (see Chaps. 6 and 7), the present chapter gives relationships between erosion rates of composites and these of matrices and fibres. The effects of different types of matrixes and fibres and different pressure heads on the rate of linear ablation of composites are calculated. To find the most efficient material under ablation we consider different criteria of efficiency.
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Dimitrienko, Y.I. (2016). Linear Ablation of Composites. In: Thermomechanics of Composite Structures under High Temperatures. Solid Mechanics and Its Applications, vol 224. Springer, Dordrecht. https://doi.org/10.1007/978-94-017-7494-9_10
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DOI: https://doi.org/10.1007/978-94-017-7494-9_10
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