APPLICABILITY OF DISPLACEMENT CONTROLLED FATIGUE TEST METHODS FOR COMPLIANT STRUCTURES |
|---|
| Z. Major |
- Abstract:
- Cyclically loaded components which reveal large compliances are widely used many industrial applications and are frequently exposed to complex combinations of mechanical loads. Both bulk and elastomer composite components are used under cyclic loading conditions under high temperature gradients and in harsh environment. Current methodologies for describing elastomer fatigue behavior and to predict the service life of rubber components follow two general approaches. One approach focuses on predicting crack nucleation life and makes use of continuum mechanics parameters such as stress and strain. The other is based on fracture mechanics concepts and focuses on the kinetics of crack growth using energy based fracture mechanics parameters. Furthermore, printed circuit boards (PCBs) reveal significant oscillations after drop tests and thus exposed to fatigue loads on a local scale. Fatigue experiments under displacement controlled cyclic loading for both of above approaches are described and discussed along with some examples in this paper.
- Keywords:
- displacement controlled cyclic loading, elastomers and elastomer composites, printed circuit boards, local strain based Wöhler curves
- Download:
- IMEKO-YSESM-2012-K10.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC15
- Event name:
- TC15 Youth Symposium 2012
- Title:
11th Youth Symposium on Experimental Solid Mechanics (TC15)
- Place:
- Brasov, ROMANIA
- Time:
- 30 May 2012 - 02 June 2012