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Accession Number
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N20120010287
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Title
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Material Model Evaluation of a Composite Honeycomb Energy Absorber.
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Publication Date
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Jun 2012
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Media Count
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21p
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Personal Author
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E. L. Fasanella K. E. Jackson M. A. Polanco M. S. Annett
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Abstract
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A study was conducted to evaluate four different material models in predicting the dynamic crushing response of solid-element-based models of a composite honeycomb energy absorber, designated the Deployable Energy Absorber (DEA). Dynamic crush tests of three DEA components were simulated using the nonlinear, explicit transient dynamic code, LS-DYNA . In addition, a full-scale crash test of an MD-500 helicopter, retrofitted with DEA blocks, was simulated. In addition, the Roadside Safety Verification and Validation Program (RSVVP) was used to assess similarities and differences between the experimental and analytical curves for the full-scale crash test.
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Keywords
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Aircraft construction materials
Analogies
Crashworthiness
Crushing
Dynamic tests
Helicopters
Honeycomb structures
Mathematical models
Modulus of elasticity
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Source Agency
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National Aeronautics and Space Administration
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NTIS Subject Category
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51C - Aircraft
85A - Air Transportation
85D - Transportation Safety
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Corporate Author
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National Aeronautics and Space Administration, Hampton, VA. Langley Research Center.
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Document Type
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Conference proceedings
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Title Note
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N/A
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NTIS Issue Number
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1226
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Contract Number
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N/A
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