Author : C. Bathias
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (125 download)
Book Synopsis Relation Between Endurance Limits and Thresholds in the Field of Gigacycle Fatigue by : C. Bathias
Download or read book Relation Between Endurance Limits and Thresholds in the Field of Gigacycle Fatigue written by C. Bathias and published by . This book was released on 2000 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: In order to predict fatigue crack propagation at very long life a piezoelectric fatigue machine was built in our laboratory. This device is able to fail specimen at 1010 cycles and to determine thresholds up to 109 mm/cycle. The originality of this machine resides in the possibility to apply simultaneously to a specimen a constant tension effect and longitudinal ultrasonic vibratory effort with adjustable amplitude. That is to say, the R ratio can be varied from -1 to 0.9.