Jawad Badreddine

UltraSonic Shot Peening (USSP) is a mechanical surface treatment process used to enhance the mechanical properties of peened parts and increase their fatigue life span. My industrial PhD aims to develop a simulation tool of this process for complex geometries, and integrate it into the design process of USSP equipment. The lack of feedback during an USSP operation, both for designers and technicians, makes it important to have a predictive tool for the entire process.

**Simulation of ultrasonic shot peening (USP): dynamics of shots during the peening process* • Programming of a simulation tool, in C++, for modeling the dynamics of shots during an USP operation, • Studying the influence of physical parameters on the USP process, • Modeling of ultrasonic shot peening on an airplane engine propeller blade, • Establishing an experimental device and methodology to compare the digital model with experimental data.

***Simulation of shot peening for the maintenance of nuclear facilities, with Code_Aster.** • Creating a calculation methodology and digital models for static and dynamic simulations, • Studying the influence of physical and digital parameters on the residual stresses induced by shot peening, • Validating a digital model of shot peening with experimental data, • Establishing research areas of future studies.

**Design and modeling of steel structures for the industry business area, with Tekla Structures 13** • General 3D modeling and detailing of steel structures (recovery boilers, pipe bridges), • Creation of single part and assembly drawings, as well as erection drawings.

Ultrasonic shot peening, Simulation (granular gases, Contact mechanics), Programming (C++, OpenGL, OPCODE), Experimental validation (developing measuring techniques, Testing)

Pre-stressing engineering, Fatigue, damage and rupture mechanics, Thermo-elasto-viscoplastic calculations

Mechanics of materials and structures, Strength of materials, Solid continuum mechanics, Structural optimization, Advanced finite elements modeling of structures, Digital simulation of mechanical processes, Material and structure forming, Digital simulation of mechanical processes