Browsing by Author "Guemmour, Mohamed"

Filter results by typing the first few letters
Now showing 1 - 1 of 1
  • No Thumbnail Available
    Item
    Dynamic Behavior of Functionally Graded Turbine Blade Using Numerical Modeling
    (Springer, 2025) Houari, Amin; Guemmour, Mohamed; Amroune, Salah; Chellil, Ahmed; Nour, Abdelkader; Kouider, Bendine; Madani, Kouider; Campilho R.D.S.G.
    Turbine blade performance degrades under dynamic stresses from high temperatures and vibrations. design is challenging due to material limitations. Designers must minimize stresses, especially centrifugal forces, within acceptable material limits. the complex nature of these blades requires a seamless integration of design, material selection, and manufacturing processes to achieve the highest performance. thus, graded material properties are essential to control their behavior and ensure the longevity of the turbine blades during operation. this project aims to develop novel metal/ceramic functionally graded material (fgm) blade designs to enhance the lifespan of gas turbine rotors. A numerical study using the mesh method (umm) with the abaqus code will produce a 3d graded multifunctional material with controlled strength under different loading conditions. Our numerical analyzes of the behavior of a blade was carried out in two parts. The first studies the static behavior, using the tto homogenization method to define the elastoplastic zone of the fgm and a damage criterion for the fgm up to failure via the xfem technique. The second part analyzes the vibration behavior of the blade, considering various parameters such as the direction of the distribution of the fgm’s material properties according to thickness, and the effect of combinations of metals and ceramics, characterized by the exponent n of the power law. Numerical analyses using abaqus code for the metal model were validated experimentally. Analyzes of the fgm design has confirmed its validity in relation to the metal model. The results emphasize the importance of the distribution of material properties in fgm blades that significantly affect the stress distribution and modal analysis.