Thermomechanics of Composite Structures under High Temperatures

By: Yu. I. Dimitrienko

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Synopsis: Thispioneering book presents new models for the thermomechanical behavior ofcomposite materials and structures taking into account internalphysico-chemical transformations such as thermodecomposition, sublimation andmelting at high temperatures (up to 3000 K). It is of great importance forthe design of new thermostable materials and for the investigation ofreliability and fire safety of composite structures. It also supports theinvestigation of interaction of composites with laser irradiation and thedesign of heat-shield systems. Structural methods are presented for calculating the effective mechanical andthermal properties of matrices, fibres and unidirectional, reinforced bydispersed particles and textile composites, in terms of properties of their constituentphases. Useful calculation methods are developed for characteristics such asthe rate of thermomechanical erosion of composites under high-speed flow andthe heat deformation of composites with account of chemical shrinkage. The author expansively compares modeling results with experimental data, andreaders will find unique experimental results on mechanical and thermalproperties of composites under temperatures up to 3000 K. Chapters show how thebehavior of composite shells under high temperatures is simulated by thefinite-element method and so cylindrical and axisymmetric composite shells andcomposite plates are investigated under local high-temperature heating.