Kindervater, Christof and Johnson, Alastair and David, Matthew and Thomson, Rodney and Joosten, Mathew (2011) Validation of Crashworthiness Simulation and Design Methods by Testing of a Scaled Composite helicopter Frame Section. American helocopter Society Forum 67, 3.-5. Mai 2011, Virginia beach.
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Modern helicopters make extensive use of composite materials to reduce structural weight. These include in-crash energy absorption devices integrated into the subfloor. Despite significant advances in computer-based design tools, the design of a composite energy absorbing structure is normally performed by semi-empirical methods supported by extensive testing. This paper describes the results of a project to develop improved methods for the design of composite energy absorbing structures. A building block approach was used in which, as specimens of increasing complexity were tested, simulation methods were developed and validated. These tests ranged from material characterisation through to large scale crash testing. Final validation of the simulation methods through the design and test of a representative helicopter frame section is described in detail. The results showed that the methods can be used to design a complex composite energy absorbing structure, and that they have the potential to enable improved designs, while significantly reducing physical testing requirements.
|Document Type:||Conference or Workshop Item (Speech, Paper)|
|Title:||Validation of Crashworthiness Simulation and Design Methods by Testing of a Scaled Composite helicopter Frame Section|
|In ISI Web of Science:||No|
|Keywords:||Crashworthijness, energy absorption, crash simulation, crash testing, composites, composite crushing|
|Event Title:||American helocopter Society Forum 67|
|Event Location:||Virginia beach|
|Event Type:||international Conference|
|Event Dates:||3.-5. Mai 2011|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||Rotorcraft|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L RR - Rotorcraft Research|
|DLR - Research theme (Project):||L - The Robust Rotorcraft|
|Institutes and Institutions:||Institute of Structures and Design > Structural Integrity|
|Deposited By:||Christof Kindervater|
|Deposited On:||12 Jan 2012 10:04|
|Last Modified:||09 Feb 2012 18:11|
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