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The effects of notch size and fiber orientation on the off-axis fatigue strength of the notched fiber metal laminate GLARE-3 are examined.Off-axis fatigue tests are performed on notched (center open hole) specimens with different fiber orientations.It is clearly observed that the fatigue strength of notched GLARE-3 laminate exhibits not only notch size dependence but also fiber orientation dependence.A new criterion for the fatigue failure of notched orthotropic materials is developed which allows prediction of their fatigue lives for any notch size and for any multiaxial state of stress.