Impact-sliding wear analysis
Creators
- Zaghdoudi, Siham
- Universite Paris VI (France)
- Commissariat a l'energie atomique et aux energies alternatives - CEA, Institut des Sciences et Techniques Nucleaires - INSTN (France)
- Commissariat a l'energie atomique et aux energies alternatives - CEA, Centre d'Etudes Nucleaires - C.E.N. de Saclay, Departement de Mecanique et Technologie - D.M.T., Laboratoire de Regles et Dimensionnement de Mecanique Statique - R.D.M.S. (France)
- Electricite De France - E.D.F., Direction des Etudes et Recherches - D.E.R., Departement Mecanique et Technologie des Composants - M.T.C., Les Renardieres (France)
Description
This research deals with the wear occurring between solid materials undergoing repetitive impulsive loading combined or not with simultaneous transverse sliding. While the rubbing wear phenomena has been extensively investigated, it is recently that attempts have been made to understand the impact-sliding wear phenomena. The main steps of the present research are: - An experimental study was performed to collect data and to understand the different stages of wear phenomena. The result of this investigation allowed us to relate the wear (expressed as wear/volume) to the relevant impact-sliding parameters. - Besides, numerical simulations of impact-sliding situations - using a finite element computation technique and an explicit rime integration scheme - were performed to calculate the relevant internal stress distribution and to study the evolution of contact characteristics. These simulations include the plasticity and oblique impact effects. - Finally, an impact-sliding wear model, based on the concepts of formation (by fatigue) and elimination (by rubbing) of wear particles, is proposed. (author)
Abstract (French)
L'usure induite par le phenomene d'impact-glissement penalise de nombreux composants industriels, notamment lorsqu'il existe des jeux. Elle limite fortement leur duree de vie et entraine des surcouts de production. Ce phenomene demeure encore assez difficile a analyser a cause des nombreux parametres mis enjeu (mecanique - materiau - environnement...). Dans ce contexte, des tentatives de prediction des risques d'usure sont proposees. Mais elles demeurent encore insuffisantes. Dans ce travail, et apres une synthese de l'etat de l'art, nous avons entrepris un ensemble d'experiences qui nous ont permis de degager des lois simples concernant l'evolution de l'usure en fonction des parametres de l'impact-glissement.. En parallele, une etude numerique du contact en presence de chocs et de frottement est proposee. Elle inclut les effets de plasticite et d'oblicite du choc. Elle nous a permis d'avoir une idee sur la distribution des contraintes et sur l'evolution des caracteristiques spatiales et temporelles du contact et par suite d'interpreter les resultats experimentaux. Enfin, un modele d'usure - se basant sur les resultats experimentaux et numeriques - est propose. Ce modele est base sur les concepts de degradation (comportant une phase initiale de matage et ensuite une phase de degradation de type fatigue) et d'evacuation des debris d'usure. (auteur)Files
53017517.pdf
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Additional details
Additional titles
- Original title (French)
- Analyse des phenomenes d'usure par choc et frottement
Publishing Information
- Imprint Pagination
- 248 p.
- Report number
- FRCEA-TH--13657
INIS
- Country of Publication
- France
- Country of Input or Organization
- France
- INIS RN
- 53017517
- Subject category
- S36: MATERIALS SCIENCE; S42: ENGINEERING;
- Resource subtype / Literary indicator
- Thesis
- Descriptors DEI
- COMPUTERIZED SIMULATION; ELASTICITY; FATIGUE; FINITE ELEMENT METHOD; IMPACT SHOCK; INCIDENCE ANGLE; MECHANICAL VIBRATIONS; MESH GENERATION; METALLOGRAPHY; OSCILLATIONS; PLASTICITY; SLIDING FRICTION; STAINLESS STEEL-304L; STRESS ANALYSIS; VELOCITY; WEAR
- Descriptors DEC
- ALLOYS; AUSTENITIC STEELS; CALCULATION METHODS; CARBON ADDITIONS; CHROMIUM ALLOYS; CHROMIUM-NICKEL STEELS; CORROSION RESISTANT ALLOYS; FRICTION; HEAT RESISTANT MATERIALS; HEAT RESISTING ALLOYS; HIGH ALLOY STEELS; IRON ALLOYS; IRON BASE ALLOYS; LOW CARBON-HIGH ALLOY STEELS; MATERIALS; MATHEMATICAL SOLUTIONS; MECHANICAL PROPERTIES; NICKEL ALLOYS; NUMERICAL SOLUTION; SIMULATION; STAINLESS STEELS; STEEL-CR19NI10-L; STEELS; TRANSITION ELEMENT ALLOYS
Optional Information
- Notes
- 113 refs.; Available from the INIS Liaison Officer for France, see the INIS website for current contact and E-mail addresses