Abstract
Bird strike is one of the most important concerns about safety in the aviation industry. Bird strikes have been the cause of significant damage to aircraft and rotorcraft structures and the loss of life. In this study, the transient response of a Lagrangian composite helicopter blade impacted by a bird is simulated in LS-DYNA software. The smoothed-particle hydrodynamics (SPH) method and a suitable equation of state are employed for the bird modeling. Firstly, the impact response of hemispherical-ended cylindrical bird, striking a flat rigid panel, is studied. After verifying the bird model, a composite helicopter rotor blade is modeled using MAT54 material model for carbon fiber reinforced plastic face sheets, MAT126 for NOMEX honeycomb core and MAT181 for rubber material. For this purpose, SHELL and SOLID cards are employed. The stress effect of centrifugal force and rotation of blade are investigated in addition to the bird impact scenario that is specified in certification criteria.
| Original language | English |
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| Title of host publication | 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017 |
| Publisher | American Institute of Aeronautics and Astronautics Inc, AIAA |
| ISBN (Print) | 9781624104534 |
| DOIs | |
| Publication status | Published - 2017 |
| Event | 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017 - Grapevine, United States Duration: 9 Jan 2017 → 13 Jan 2017 |
Publication series
| Name | 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017 |
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Conference
| Conference | 58th AIAA/ASCE/AHS/ASC Structures, Structural Dynamics, and Materials Conference, 2017 |
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| Country/Territory | United States |
| City | Grapevine |
| Period | 9/01/17 → 13/01/17 |
Bibliographical note
Publisher Copyright:© 2017 by the American Institute of Aeronautics and Astronautics, Inc. All rights reserved.