Energy Based Characterization of Fatigue Behaviour of Cyclically Unstable Materials
| Periodical | Solid State Phenomena (Volumes 147 - 149) |
|---|---|
| Main Theme | Mechatronic Systems and Materials III |
| Edited by | Zdzislaw Gosiewski and Zbigniew Kulesza |
| Pages | 512-517 |
| DOI | 10.4028/www.scientific.net/SSP.147-149.512 |
| Citation | Ewald Macha et al., 2009, Solid State Phenomena, 147-149, 512 |
| Online since | January, 2009 |
| Authors | Ewald Macha, Jacek Slowik, Roland Pawliczek |
| Keywords | Cyclic Instability, Digital Control, High Cycle Fatigue, Low Cycle Fatigue, Mechatronic Systems, Random Loading, Strain Energy Parameter |
| Price | US$ 28,- |
The paper presents a definition of a new energy based parameter which allows to better describe fatigue proprieties of materials, especially cyclically unstable materials in comparison with the Lagoda-Macha parameter. The proposed parameter distinguishes positive and negative work of external force and depends on the sign of the stresses in paths of strain in materials. It is used in laboratory tests for control of a fatigue process on hydraulic stand. A close-loop control system has been equipped with computer program based on MATLAB/Simulink module.