Abstract
Fatigue limit and fracture patterns in epoxy based carbon composite were examined. When all fiber direction was along the specimen axis, higher value of fatigue limit was obtained. In this case, the stable crack growth tended to occur. When the directions of carbon fibers were parallel and perpendicular to the specimen axis, fatigue limit was lower. In this case, the unstable crack growth tended to occur. It is concluded that there is good relationship between fracture pattern and fatigue limit in the case of present study.
