Research Areas

The most contributed topic is the classification of the published documents with a common focused intellectual interest (Scopus database):

Subject Area: Engineering · Materials Science · · Mechanical engineering · Computer Science · Nanomechanics.

1) Tube hydroforming process;

2) Sheet metal forming;

3) Material parameter identification;

4) Mechanical Design

Experimental Study and Numerical Simulation of Plastic Deformation Forming Processes: Tube Hydroforming, Sheet Metal Stamping, Experimental Material Characterization (mechanical tests and field measurement techniques using image correlation such as the ARAMIS system and GOM-3D) for identifying parameters of material behavior laws for sheets and tubes; Design of mechanical testing rigs and innovative patented solutions.

5) Ductile Fracture; Stress Triaxiality; Lode parameter

Identification of parameters of uncoupled ductile fracture models using tests characterized by a wide range of stress triaxiality and Lode parameter: Application to the simulation of ductile Fracture in material forming processes.

6) Simulation of Friction Stir Welding; Contact models

Modeling and simulation of friction stir welding and mixing (FSW) processes; development of contact models and application of ALE and CEL formulations for numerical simulation using the finite element method of highly complex thermomechanical welding processes

7) Nanomechanical characterization of thin films

Nanomechanical characterization of Thin Films by Nanoindentation Instrumented indentation testing and numerical simulation for the identification of mechanical behavior of thin films (inverse methods and artificial intelligence). Contribution to the understanding of dislocation mechanisms involved and related to thin film growth conditions: Application to GaN material used in the fabrication of optoelectronic devices (microelectronics industry). Determination of fracture toughness KIC of thin films (GaN, AlGaN); measurement of residual stresses in thin films using Raman spectroscopy; cyclic nanoindentation tests: Study of thin film behavior under fatigue. Investigation of residual stresses in thin films and their effects on optical, electrical, mechanical properties, etc. (future prospects).

8) Tribology Topic

My current research focuses on studying the effect of graphene additives on the tribological behavior of tungsten carbide (WC) coated with diamond-like carbon (DLC). This work aims to explore how incorporating graphene into oil lubricants impacts the friction and wear properties of the WC-DLC tribological system. As graphene has shown promise in enhancing the performance of lubricants, this research investigates its potential to improve the tribological performance of the WC-DLC coating, which is widely used in applications requiring high wear resistance.

Development of Instrumentation and Mechanical Tests

(1) Design and fabrication of a Tube Hydroforming Machine

(2) Design and fabrication of a Ring Hoop Tensile Test (RHTT) device

(3) Design and fabrication of a specimen and holder for the Simple Shear Test on Ring

(4) Design and fabrication of a Twin Specimen and a new setup for Simple Tension Testing on small diameter tubular materials

(5) Design and fabrication of new D-blocks for Frictionless Simple Tension and Plane Strain Tensile Testing on Ring (application: e.g., accurately assess the mechanical strength of nuclear fuel claddings)

(6) Design and fabrication of a device for Lateral Crush Mechanical Characterization using a hemispherical punch for tubular materials

(7) Development of a Computer Code 'Proxy-CoStiM®' for the analysis and processing of data obtained from Instrumented Nanoindentation."