A5062000446- Polymer Nanocomposites and Properties
- Elasticity and Material Modeling
- Polymer crystallization and properties
- Fatigue and fracture mechanics
- Microstructure and Mechanical Properties of Steels
- Force Microscopy Techniques and Applications
- Advanced Welding Techniques Analysis
- Welding Techniques and Residual Stresses
- Mechanical Engineering and Vibrations Research
- Advanced machining processes and optimization
- Aluminum Alloys Composites Properties
- Metal Alloys Wear and Properties
- Tribology and Wear Analysis
- Mechanical stress and fatigue analysis
- Aluminum Alloy Microstructure Properties
- Metal Forming Simulation Techniques
- Laser and Thermal Forming Techniques
- Hydrogen embrittlement and corrosion behaviors in metals
- Mechanical Behavior of Composites
- Probabilistic and Robust Engineering Design
- Rheology and Fluid Dynamics Studies
- Metallurgy and Material Forming
- Intermetallics and Advanced Alloy Properties
- Material Properties and Failure Mechanisms
- Metallurgy and Cultural Artifacts
Institut de Recherche en Génie Civil et Mécanique
2014-2024
Centre National de la Recherche Scientifique
2010-2024
École Centrale de Nantes
2010-2024
Nantes Université
2022-2024
Centre des Matériaux
2005-2019
Université Nantes Angers Le Mans
2012
École Nationale Supérieure de Mécanique et d'Aérotechnique
2003
University of Vienna
1999-2000
Université de Rennes
1999-2000
Clausthal University of Technology
1999
The present paper deals with the fatigue crack growth in a carbon black filled cis-1,4-polyisoprene rubber under relaxing loading conditions. study focuses on determination of scenario growth. For this purpose, an original "microcutting" method is employed to observe microscopic phenomena involved SEM. It reveals that cavitation induced by decohesion between zinc oxides and matrix major damage tip composed stretched elliptical areas surrounded highly crystallized ligaments. Finally,...
ABSTRACT A detailed study of the initiation fatigue cracks in carbon black–filled natural rubber is conducted. Interrupted tests are performed and fatigued samples observed with a scanning electron microscope. This procedure first enables quantification morphology, spatial distribution, evolution crack sites for different strain levels, which gives some statistical data each level. It also permits analysis chemical nature inclusions inducing thanks to energy dispersive spectrometry X-rays....
ABSTRACT The present paper describes macroscopic fatigue damage in carbon black‐filled natural rubber (CB‐NR) under uniaxial loading conditions. Uniaxial tension‐compression, fully relaxing tension and non‐relaxing conditions were applied until sample failure. Results, summarized a Haigh‐like diagram, show that only one type of is observed for tension‐compression conditions, several different types take place tension, are closely related to the improvement life. Therefore, as life...
This paper reports on a new method based the friction stir welding process to join dissimilar metals in butt joint configuration. Two different systems were considered: AA1050 H16 aluminium/ASTM A284 steel and H16/UNS C12200 H01 copper. The unthreaded tool pin was positioned aluminium plate so that it tangential opposing metal. Bonding accompanied by interfacial chemical reactions with no significant mechanical mixing. solid state is called diffusion bonding. Room temperature cross-weld...
Abstract A micro‐tensile testing machine placed in the chamber of a scanning electron microscope is used to perform situ fatigue tests on 43 phr carbon black‐filled cis ‐1,4‐polyisoprene rubber; crack tip observed real‐time during propagation. These observations lead detailed description morphology; front regular pattern diamond‐shaped zones delimited by extended straight ligaments. Fatigue growth driven ligaments breakage, which occurs all surface continuously time but at different...
Natural rubber exhibits remarkable mechanical fatigue properties usually attributed to strain-induced crystallization. To investigate this phenomenon, an original experimental set-up that couples synchrotron radiation with a homemade machine has been developed. Diffraction-pattern recording is synchronized cyclic loading in order obtain spatial distributions of crystallinity the sample at prescribed times cycles. Then, real-time measurement permitted during uninterrupted experiments. First...
The use of Laser Assisted Machining (LAM) can improve different aspects the machinability high strength materials. A study was undertaken to determine optimum cutting parameters and quantify their influence on fatigue according type microstructure created. Two materials were studied: a bearing steel (100Cr6 / AISI 52100) an aeronautical titanium alloy (Ti6Al4V). In significant increase resistance observed due transformation surface layer into martensite. For alloy, slight reduction in found...