Abstract
A new method for automatic fatigue crack growth measurement in polymers using electrical conductive surface grids and a micro-computer is developed. The grid pattern is made from a graphite ink and transferred to the specimen surface using a screen printing technique. The computer scans each bar individually and counts the elapsed fatigue cycles using a simple interface. Experimental results for crack length and elapsed cycles are produced in a form suitable for further computer analysis to establish the Paris power law for fatigue crack growth. The usefulness and accuracy of this computerized automatic method are compared to the conventional optical method. Fatigue crack growth results are obtained for several polymers using this computerized technique.
| Original language | English |
|---|---|
| Pages (from-to) | 2199-2206 |
| Number of pages | 8 |
| Journal | Journal of Materials Science |
| Volume | 20 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - Jun 1985 |
| Externally published | Yes |
ASJC Scopus subject areas
- Ceramics and Composites
- Materials Science (miscellaneous)
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
- Polymers and Plastics