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Tribology & Materials

The "Tribology & Materials" topic is dedicated to the study of materials damage under loading. Damage can occur at the core of a given component (plasticity, fracture, fatigue) or at its surface (friction, wear, cracking and other tribological aspects).

The loading conditions can be severe (pressure, speed, temperature, humidity) in case of both dynamic and static loading. The studied materials are of numerous types: metals, composite materials (organic or metallic matrix), ceramics, elastomers or polymers.

Fatigue is a recurring matter in the research conducted by the Tribology & Materials team. It is a principle that consists in the accumulation of damage under dynamic stress which can result in the destruction of a given component at its core (volume fatigue) or at its surface (surface fatigue, involved in fretting-fatigue or micro-spalling). The study of these phenomena requires modelling work, as well as experimental work using original devices developed in the laboratory.

The study of micro-geometry is a means to put the materials properties at the centre of the high tribological performance of components that are in contact with each other. The research effort focuses on understanding the phenomena induced locally by the specific features of any component’s surface. One specific attribute of functional surfaces is their roughness, with altitude variations of the order of a micrometre, which by nature results in discontinued and stochastic contact between two components. Differences in nature and properties between the materials used at the surface of a component and at its core should also be taken into account, as well as differences between components in contact with each other.

Finally, damage analysis enables to enhance these researches, in order to relate damage to the micro-structures of different scales that can be observed with a given material. Damage can be induced by several types of loadings of mechanical (tension, torsion, bending, shock, crash-test, etc.) or thermal nature (welding for example). The development of manufacturing processes primarily based on powder metallurgy will complete this project. Those processes will enable to optimise material properties and take environmental considerations into account by using residual materials (metal chips or elastomers) in the composition of subsequently created alloys.

 

 

Keywords                                    

Tribology, , damage, fatigue, fretting, micro-geometry, mixed lubrication, materials, polymer matrix composites, metallic matrix composites, recycling.

 

Team members

 

Doctoral candidates

Konstantinos NIKOLAKOPOULOS, Amal BECHIKH, Rémi PIEGARD, Oumeyama HAMLAOUI, Bouthania EL AOUD, Mathieu ARROUZÉ.

 

 

Head of the team

Tony Da Silva Botelho

01 49 45 29 16

Recent publications

Updated Lagrangian XFEM Approach for Finite Strain Ductile Fracture (lire)
11th European Solid Mechanics Conference 2022
3D cohesive XFEM-based unified methodology for ductile fracture in finite strain (lire)
EMMC18 - 18th European Mechanics of Materials Conference 2022
Effect of dry abrasion treatments on composite surface quality and bonded joints shear strength (lire)
International Journal of Adhesion and Adhesives Elsevier 2022 113 pp. 103058
Effect of the Glass Fiber Content of a Polybutylene Terephthalate Reinforced Composite Structure on Physical and Mechanical Characteristics (lire)
Polymers MDPI 2022 14 pp. 17
Toughening Mechanism Analysis of Recycled Rubber-Based Composites Reinforced with Glass Bubbles, Glass Fibers and Alumina Fibers (lire)
Polymers MDPI 2021 13 pp. 4215
Toughening Mechanism Analysis of Recycled Rubber-Based Composites Reinforced with Glass Bubbles, Glass Fibers and Alumina Fibers (lire)
Polymers MDPI 2021 13 pp. 4215
Experimental Analysis of Kerf Taper Angle in Cutting Process of Sugar Palm Fiber Reinforced Unsaturated Polyester Composites with Laser Beam and Abrasive Water jet Cutting Technologies (lire)
Polymers MDPI 2021 13 pp. 2543
Theoretical and Experimental Investigation of Bonded Patch Repairs of a Rubber Reinforced Composite Conveyor Belt (lire)
Polymers MDPI 2021 13 pp. 1710
Analytical Solutions of Model Problems for Large-Deformation Micromorphic Approach to Gradient Plasticity (lire)
Applied Sciences MDPI 2021 11 pp. 2361
Experimental Analysis of Heat-Affected Zone (HAZ) in Laser Cutting of Sugar Palm Fiber Reinforced Unsaturated Polyester Composites (lire)
Polymers MDPI 2021 13 pp. 706
Experimental Analysis of Heat-Affected Zone (HAZ) in Laser Cutting of Sugar Palm Fiber Reinforced Unsaturated Polyester Composites (lire)
Polymers MDPI 2021 13 pp. 706
Detailed investigation of TiN effect on hybrid intermetallic composites manufactured by combined sinter + forging method (lire)
Mechanics of Advanced Materials and Structures Taylor & Francis 2021 pp. 1-12
Detailed investigation of TiN effect on hybrid intermetallic composites manufactured by combined sinter + forging method (lire)
Mechanics of Advanced Materials and Structures Taylor & Francis 2021 pp. 1-12
Investigation of cut edge microstructure and surface roughness obtained by laser cutting of titanium alloy Ti-6Al-4V (lire)
Materials Today: Proceedings Elsevier 2021
Progressive failure of ductile metals: Description via a three-dimensional coupled CZM-XFEM based approach (lire)
Engineering Fracture Mechanics Elsevier 2021 243 pp. 107498
Effect of cutting conditions on surface roughness of machined parts in CO2 laser cutting of pure titanium (lire)
Materials Today: Proceedings Elsevier 2021
Detailed investigation of TiN effect on hybrid intermetallic composites manufactured by combined sinter + forging method (lire)
Mechanics of Advanced Materials and Structures Taylor & Francis 2021 pp. 1-12
On the contact law of open-cell poro-granular materials (lire)
International Journal of Solids and Structures Elsevier 2021 208-209 pp. 83-92
On the contact law within a poroelastic granular material (lire)
Forum Acusticum 2020 pp. 619-620
A Large-Deformation Gradient Damage Model for Single Crystals Based on Microdamage Theory (lire)
Applied Sciences MDPI 2020 10 pp. 9142
Sandblasting parameter variation effect on galvanized steel surface chemical composition, roughness and free energy (lire)
International Journal of Adhesion and Adhesives Elsevier 2020 102 pp. 102653
Optimization of the Surface Roughness Parameters of Ti–Al Intermetallic Based Composite Machined by Wire Electrical Discharge Machining (lire)
Coatings MDPI 2020 10 pp. 900
Surface Quality of Ti-6Al-4V Titanium Alloy Parts Machined by Laser Cutting (lire)
Engineering technology and Applied science research Dionisios Pylarinos 2020 10 pp. 6062-6067
Comprehensive analysis and manufacture of recycled aluminum based hybrid metal matrix composites through the combined method; sintering and sintering + forging (lire)
Composites Part B: Engineering Elsevier 2020 194 pp. 108040
Cutting Processes of Natural Fiber-Reinforced Polymer Composites (lire)
Polymers MDPI 2020 12 pp. 1332
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