CAI Composite Joint Analysis
Abstract: The Composites Affordability Initiative (CAI) was established to reduce the cost of composite structures essential to high-performance aircraft. A team was established that consisted of the Air Force Research Laboratory Materials and Manufacturing Directorate, the Air Vehicles Directorate, the Office of Naval Research, Boeing, Lockheed Martin, Northrop Grumman and General Electric Aircraft Engines. Early in the program the team recognized that in order for lower cost concepts to be accepted by the engineering community, accurate analysis of predicted performance was required.
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“In the case of the through crack configuration, the comparison of experimental and StressCheck® derived geometry factors showed a close correlation and were an improvement to solutions provided in AFGROW at the time. Based on the results of this research, StressCheck® pin-loaded lug geometry factors have since been incorporated into the AFGROW software.”
Dr. Alten GrandtPurdue University