Computational adaptive structure assessment of c-130 flaperon

Computational software for composites has been enhanced to simulate the shape changes for piezo-electrically controlled structures. The Structural Health Monitoring (SHM) and Morphing Evaluation considered Durability and Damage Tolerance (D&DT) and reliability analysis utilizing the GENOA Multi-scale Progressive Fracture Analyzer (PFA). SHM software is now developed to simulate and validate probabilistic design methodology to identify piezoelectric composite shape control as well as damage progression due to piezoelectric control of composite airfoils in airframe and engine applications. Given the requirements of airfoil shape control and limits, the GENOA composite mechanics module is used to determine basic parameters and choices of sandwich structure and piezocomposite architecture that will be compatible with the shape control needs. The identified candidate design parameters are evaluated via GENOA PFA for functional performance with respect to shape control as well as structural durability under service loading. The piezo-adaptive shape simulations are verified by comparison with selected closed form solutions and test data from the literature. The piezoelectrically controlled composite airfoil structure is optimized based on minimum weight, minimum damage, and maximum performance requirements.