Conference Presentation: A System for Simulation Governance of Engineered Repairs of Composite Aircraft Structures
Abstract: Modern military aircraft = composite skins + metallic sub-structure. Verification of structural integrity of standard repairs is costly, and requires structural and strength analysis. Traditional closed-form analysis techniques are unrepresentative and unsuitable, but construction of detailed finite element models requires Finite Element Analysis (FEA) expertise. Therefore, computational system with these requirements is needed to accelerate decision-making:
- Validated/certified methods
- Closed-form and FEA-based
- Readily employed
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“A screening of existent commercial and non-commercial tools was carried out in respect to their fracture mechanics capabilities, their design abilities, implementation as well as their complexity. Although, there are many software possibilities, only those within the reach of the author were evaluated. This resulted in the selection of the commercial tool StressCheck®. The assessment of crack propagation on compact tension and two stringer specimens governed by the Paris and Forman regimes was satisfactory compared with experimental results using the material data from simple standard specimens.”
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