An Investigation of Fatigue Behavior of Reinforced Plastics for Primary Aircraft Structures.
Final rept. 1 Feb 68-1 Jun 69,
IIT RESEARCH INST CHICAGO IL
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The following aspects of fatigue behavior of reinforced plastics composite materials were studied. 1 Investigation of damage propagation in cantilever beam specimens of different composite materials subjected to fatigue cycle of complex stresses. The studies included residual strength determination, ultrasonic examination and microscopic inspection. 2 Investigation of damage in different composite specimens under tension fatigue stress cycling. The studies were residual strength determination, ultrasonic inspection and scanning electron microscope examination. 3 A study of cummulative tension fatigue damage mechanisms under programmed loading and analysis for glass cloth composites. Author
- Laminates and Composite Materials