Short term fatigue behaviour of composite materials containing embedded fiber optic sensors and actuators

This paper presents the results of a preliminary study into the short term fatigue behaviour of a carbon/epoxide composite system containing embedded fibre optic sensors and NiTiNOL wire actuators. The high-load/low-cycle spectrum was addressed for both unidirectional and cross-ply laminates of different thicknesses. Fatigue loading applied through tension was maintained with constant force. Relationships are derived between the inclusion size and position, relative to the host reinforcement and the composite fatigue resistance. Failure modes have been discussed.