Electronic Resource
PO Box 1354, 9600 Garsington Road, Oxford OX4 2XG, UK.
:
Blackwell Science Ltd
Fatigue & fracture of engineering materials & structures
28 (2005), S. 0
ISSN:
1460-2695
Source:
Blackwell Publishing Journal Backfiles 1879-2005
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Fretting fatigue fracture of industrial machines is sometimes experienced after a long period of operation. It has been a question whether the fatigue limit which means infinite life really exists in fretting fatigue or not. Fretting fatigue tests in ultra high cycle region up to 109 cycles were performed. Test results showed that the S-N curve had a knee point around 2 × 107 cycles and a clear fatigue limit was observed in the giga-cycle regime for partial slip conditions. An electropotential drop technique was applied to detect the crack growth behaviour under the contact pad. The real-time measurement of crack depth during the fretting fatigue test at the fatigue limit showed that a crack initiated at an early stage and then ceased to grow after 2 × 107 cycles and the crack became a non-propagating crack. These results indicated that the fatigue limit exists in fretting fatigue and infinite endurance is achieved by the mechanism of forming a non-propagating crack.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1111/j.1460-2695.2005.00896.x
| Library |
Location |
Call Number |
Volume/Issue/Year |
Availability |
