Damage tolerance and survivability of composite aircraft structures

B. Rasuo     University of Belgrade, Belgrade, Serbia


This chapter presents the main results of the survivability of a heavy transport helicopter tail rotor blade built of composite laminated materials after ballistic damage made by the bullet of 7.9-mm-calibre shoulder weapons. Penetrating damages made in the root part of the tail rotor blade spar have been analysed. The test program for the tail rotor helicopter blades has included the dynamic testing of non-damaged and damaged blades in full scale. On the basis of the results of vibratory testing and fatigue testing, an assessment is made about the vulnerability and the survivability of the helicopter tail rotor blade ...

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