Journal of Aircraft · 1987 · 32 citations · 1 references
EngineeringAerospace EngineeringComputational EngineeringAircraft StructuresFinite Element AnalysisStructural DynamicsCrash SimulationCrash TestingImpact BehaviorImpact DynamicsImpact MechanicsStructural TestingCrash AnalysisCrash Simulation ValidationFinite Element Crash ModelingFinite Element Crash SimulationFramesNonlinear Crash AnalysisStructural Collapse ModelingStructural Crash Analysis
An analytical method has been developed for assessing crash dynamics of large transport aircraft, such as in the NASA Controlled Impact Demonstration (CID) jet crash test on December 1, 1984. The DYCAST nonlinear finite-element computer code was used in a series of progressively more difficult tasks to model complete transport aircraft crashes. Single aircraft frames and fuselage section vertical drop tests were modeled and analyzed to obtain comparisons with experimental data and to develop hybrid element crash springs for use in the large CID model. Predictions of crash and acceleration levels from a symmetric CID model agreed well with data from the CID experiment.
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