A microscale energy-based fatigue damage model for unidirectional composites under multiaxial loading at different stress ratios

•A new non-dimensional effective local energy is proposed and generalized for fiber and matrix based on continuum damage mechanics.•Fatigue behavior of unidirectional composites is studied at the level of fiber and matrix.•Effect of stress ratio on fatigue damage and fatigue life of unidirectional c...

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Veröffentlicht in:	Engineering fracture mechanics 2019-01, Vol.205, p.120-135
Hauptverfasser:	Fazlali, Babak, Mohammadi, Bijan
Format:	Artikel
Sprache:	eng
Schlagworte:	Carbon-epoxy composites Continuum damage mechanics Crack propagation Damage assessment Damage detection Fatigue damage evolution Fatigue failure Fatigue life Fiber orientation Laminates Mathematical models Micromechanical constitutive modeling Stiffness Stress ratio Unidirectional composites
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