Damage Mechanics of Metal-matrix Composites: Various Levels of Approach
关键词: Damage mechanics 、 Micromechanics 、 Homogenization (chemistry) 、 Composite material 、 Composite number 、 Materials science 、 Finite element method 、 Creep 、 Interphase
摘要: Constitutive and damage mechanics of composite materials is discussed, with a special attention to unidirectional metal-matrix composites. Macroscopic thermo-elasto-visco-plastic models based on micromechanical approaches are presented that offer various modeling capabilities between two-phase multi-subvolume model. A micromechanics analysis transverse creep, using periodic homogenization finite elements demonstrates the role fiber-matrix interphase in creep resistance composite. Such numerical approach can be used deliver directly constitutive response at component level by multiscale structural FE2 imbricated finite-element method.
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