Design of composite structures reinforced curvilinear fibres using FEM
| Autor: | Andrei Malakhov, Alexander Polilov |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Curvilinear coordinates
Materials science business.industry Composite number 02 engineering and technology Structural engineering Classification of discontinuities 021001 nanoscience & nanotechnology Orthotropic material Functionally graded material Finite element method 020303 mechanical engineering & transports 0203 mechanical engineering Mechanics of Materials Composite plate Ceramics and Composites Composite material 0210 nano-technology business Stress concentration |
| Zdroj: | Composites Part A: Applied Science and Manufacturing. 87:23-28 |
| ISSN: | 1359-835X |
| DOI: | 10.1016/j.compositesa.2016.04.005 |
| Popis: | This paper describes a method of modelling a curvilinear reinforcement structure, for a composite plate with a hole that allows trajectories of fibres to be adapted to geometric discontinuities (holes, notches, bolts, etc.). For this method, it is assumed that the trajectories of fibres are curvilinear and continuous, as well as located along the trajectories of maximum principal stress. On the basis of these trajectories, the functionally graded material is simulated by means of the finite element method (FEM). Each element of this structure has its own mechanical properties, depending on the fibre direction and a change in the distance between the fibres. It is demonstrated that the maximum value of the stress concentration factor in the fibre direction for the plate with the curvilinear reinforcement structure reduces by 3.2 times in comparison with the same plate with a rectilinear reinforcement structure (orthotropic material). |
| Databáze: | OpenAIRE |
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