BibTeX:

@article{IJIRSTV4I2015,
     title={Finite Element Analysis of Thermally Induced Residual Stresses in Functionally Graded Materials(AL2O3/SIC/TIC)},
     author={Rangasreenivasulu Ullakkigari and Karimulla Reddy.S.B},
     journal={International Journal for Innovative Research in Science & Technology},
     volume={4},
     number={2},
     pages={17--31},
     year={},
     url={http://www.ijirst.org/articles/IJIRSTV4I2015.pdf},
     publisher={IJIRST (International Journal for Innovative Research in Science & Technology)},
}

Residual stress is the major cause for the failure of any component after manufacturing before put into original operation. Powder metallurgy (PM) is the most suitable technique certainly for mass production and up-scaling of the FGM’s. Functionally graded materials (FGMs) are advanced materials and their main characteristic is microstructure and composition variation over the volume of the specimen. In graded metal/ceramic components incompatible properties like strength, toughness and machinability of metal are coupled with heat, wear and corrosion resistance of ceramic in a single part. This advantage makes FGM’s very applicable in various applications. Now a day’s these types of materials have useful applications in variety of fields such as aircraft and aerospace industry, drilling and cutting, biomedical materials and engine components etc. Sintering is the main technique to manufacture these types of materials. During the sintering process, cooling of the specimen from sintering temperature to room temperature results in generation of thermal residual stresses within the material. These thermal stresses may cause crack propagation and failure of the material. Distribution analysis of these thermally induced stresses in the cylindrical metal-ceramic (Al2O3/SiC/TiC) Functionally Graded Material has been carried out in this thesis work. Finite element package ANSYS (Work-Bench 15.0) has been used in order to simulate the distribution of the thermal residual stresses in the materials. Influence of number of layers (4, 6 and 10 layers) and dimensional changes (24×24) has been investigated.

Functionally Graded Materials and their properties, cuboid FGM (Al2O3/SiC/TiC), Thermal residual stresses, Von-Mises effective stresses, Principal stresses, ANSYS (Work-Bench 15.0)