Automated Fatigue Crack Growth Measurement
Abstract
Fatigue testing is a key element in the development of aircraft and engines. The higher performance temperatures of both airframe and engines of future aircraft makes precise high temperature fatigue testing vital. The goal of this program is to develop a new tool that will automate this test and provide fatigue crack measurement to a precision of 0.001 in. at varying temperatures up to 2000 F and likely higher. In the Phase I program reported here we have experimentally shown the feasibility of two different approaches using laser and x-ray technology. We have recommended that the laser approach be selected for hardware development.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1988
- Accession Number
- ADA198642
Entities
People
- John Mccoy
- Ted E. Kirchner