Tribo-Fatigue (TF) TF: Main Terms New Research Field Methodology of TF Stages of Progress of TF SI-SeriesTest Machines Results of WFT TF: Standards TF: Intern. Symposiums Books Contacts

 

 

INTERSTATE  STANDARD GOST 30638-99  

"Tribo-Fatigue. Terms and Definitions":

Tribo-Fatigue – the science concerned with wear-fatigue damages and fractures of active systems of machines and equipment

Active system – the mechanical system in which any form of friction processes is realized in any its manifistations and alternative load is taken up and transmitted through simultaneously.

Wear-fatigue damage – the damage caused by the kinetic interaction of fatigue, friction, wear and/or erosion phenomena (Figure 1).

 

Figure 1 – General types of wear-fatigue damage

 

Reliability on tribo-fatigue criteria – reliability  of an active system determined by its ability to remain values of wear-fatigue resistance characteristics in the established intervals during specified time

Wear-fatigue tests – the tests used to determine quantitative characteristics of resistance to wear-fatigue damage.

Wear-fatigue test machine – the machine used for fastening an active system or its model, exposing the system to the complex effect of alternative loads and friction processes under prescribed conditions and modes, providing the required test durability, measuring and recording its resistance characteristics to wear-fatigue damage.

Mechano-rolling fatigue – wear-fatigue damage caused by the kinetic interaction of mechanical fatigue and rolling friction phenomena.

Mecbano-sliding fatigue – wear-fatigue damage caused by the kinetic interaction of mechanical fatigue and sliding friction phenomena.

Fretting fatigue – wear-fatigue damage caused by the kinetic interaction of mechanical fatigue and fretting phenomena.

Mechano-corrosion fatigue – fatigue of material caused by the simultaneous effect of alternative loads and  corrosive environment.

Mechano-erosion fatigue – wear-fatigue damage caused by the kinetic interaction of mechanical fatigue and erosion phenomena.

Direct effect – the effect of friction and wear processes upon the change in characteristics of fatigue resistance of the elements of the system

Back effect – the effect of cyclic stresses upon the characteristics of friction and wear

 

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