Experimental Techniques for Evaluation of Fatigue Characteristics of Laminated Constructions from Composite Materials: Full-Scale Testing of the Helicopter Rotor Blades

  • M. R. Mitchell, R. E. Link, Bosko Rasuo
  • Journal of Testing and Evaluation, January 2011, ASTM International
  • DOI: 10.1520/jte102768

Full-Scale Testing of the Helicopter Rotor Blades

Photo by Praveen Gorakala on Unsplash

Photo by Praveen Gorakala on Unsplash

What is it about?

The importance of full-scale testing in the development process for composite laminated materials helicopter blades is discussed and illustrated by means of two examples drawn from the Aeronautical Department, Faculty of Mechanical Engineering’s experience in the use of composites in a wide variety of structural applications. Laboratory fatigue testing is conducted at the Aeronautical Department on all flight-critical dynamic components in order to determine structural adequacy. In this paper, the analyses of behavior by fatigue testing for a main rotor blade for a light multipurpose helicopter propulsion system and a heavy transport helicopter tail rotor blade of composite laminated materials are given.

Why is it important?

The importance of full-scale testing in the development process for composite laminated materials helicopter blades is discussed and illustrated by means of two examples drawn from the Aeronautical Department, Faculty of Mechanical Engineering’s experience in the use of composites in a wide variety of structural applications.

Perspectives

Professor Bosko Rasuo
University of Belgrade

Well-designed composite laminated structures can provide a high degree of damage tolerance, and in practice, it is still very difficult to utilize the full fiber strength potential of composite structures. The composite laminated materials give constructions with exceptionally high level of survivability and damage tolerance that are so important in both military and civil aviation.

Read Publication

http://dx.doi.org/10.1520/jte102768

The following have contributed to this page: Professor Bosko Rasuo