A New Fatigue Damage Indicator.
Abstract
The development of a new concept for fatigue damage sensors is presented. The concept is based on the accumulation of damage in a composite material consisting of a particle filled matrix. The composite material is designed to exhibit an electrical conductivity by properly dispersing a system of conducting particles in a matrix which serves as an insulator. A Single conductor of the composite material attached to the component is exposed to a cyclic strain. The resistance of the composite undergoes a permanent change as the composite itself is damaged during the cycling. This damage induced resistance change in the composite can be related to fatigue damage induced in the component by strain cycling. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 15, 1970
- Accession Number
- AD0714258
Entities
People
- G. A. Panizza
- J. W. Dally
Organizations
- Illinois Institute of Technology