期刊
CONTINUUM MECHANICS AND THERMODYNAMICS
卷 32, 期 2, 页码 403-420出版社
SPRINGER
DOI: 10.1007/s00161-017-0616-4
关键词
Short fibre-reinforced thermoplastic; Cyclic loading; Constitutive equations; Complex experimental database; Thermodynamics of irreversible processes
A constitutive model for the cyclic behaviour of short carbon fibre-reinforced thermoplastics for aeronautical applications is proposed. First, an extended experimental database is generated in order to highlight the specificities of the studied material. This database is composed of complex tests and is used to design a relevant constitutive model able to capture the cyclic behaviour of the material. A general 3D formulation of the model is then proposed, and an identification strategy is defined to identify its parameters. Finally, a validation of the identification is performed by challenging the prediction of the model to the tests that were not used for the identification. An excellent agreement between the numerical results and the experimental data is observed revealing the capabilities of the model.
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