Fatigue Damage in On-Axis and Off-Axis Woven-Fiber/Resin Composite
In this study the tensile static and fatigue behaviour of a woven-fabric laminate is investigated in both the on-axis and off-axis material directions. Emphasis is placed on the development of damage and its influence on the stress-strain behaviour of the laminate. The test results illustrate that there is a high degree of anisotropic behaviour due to anisotropic damage development, which is evident by the variation of the material behaviour between the on-axis and off-axis test specimens. The fatigue tests also suggest that the on-axis specimens exhibit noticeable stiffness degradation, while the off-axis specimens do not. The qualitative results provide significant insight into the type of damage mechanism responsible for the observed behaviour.
Z. Tonković and M.H. Aliabadi
J. Montesano et al., "Fatigue Damage in On-Axis and Off-Axis Woven-Fiber/Resin Composite", Key Engineering Materials, Vols. 488-489, pp. 230-233, 2012