Simulation of Traditional Composites Under Thermal Loads

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Simulation of Traditional Composites Under Thermal Loads

Author Affiliations

¹ Department of Aeronautical and Automobile Engineering, MIT - Manipal University, Manipal, Udupi Karnataka, INDIA

Res. J. Recent Sci., Volume 2, Issue (ISC-2012), Pages 273-278, February,2 (2013)

Abstract

Functionally Graded Materials (FGM) has continuous variation of material properties from one surface to another. The gradation of properties in an FGM reduces the thermal stresses, residual stresses, and stress concentrations found in traditional composites. This paper will explore analysis of FGM flat plates under pressure i.e. thermal loading in order to understand the effect variation of material properties has on structural response. Theoretical formulation of various material properties is done using Rule of mixtures. The plate is then modeled and subjected to specific boundary conditions after which thermal analysis is carried out. The convergence studies with respect to varying mesh and layers are carried out in order to obtain accurate results. When subjected to thermal loads, the displacements and stresses vary with different metal/ ceramic proportions, in addition to this; deflection also varies greatly through the thickness. the variation of the same parameters with changing volume fraction of ceramic is also understood. Results are compared to published results in order to show the accuracy of modeling FGMs using ANSYS software.

References

Miyamoto Y. and Kaysser W.A., Functionally Graded Materials – Design, Processing and Applications, Kluwer Academic Publishers, (1999)
Ghosh A. and Reimanis Ivar, Functionally Graded Materials: Manufacture, Properties and Applications Ceramic Transactions, 76, (1997)
Cooley William and Captain G., USAF, Application of Functionally Graded Materials in Aircraft Structures, Thesis work, March (2005)
Singha M.K., Prakash T. and Ganapathi M., Finite element analysis of functionally graded plates under transverse load, Finite Elements in Analysis and Design 47, 453–460 (2011)
Reddy J.N. and Zhen-Qiang Cheng, Three-dimensional thermomechanical deformations of functionally graded rectangular plates, Department of Mechanical Engineering, Texas A and M University, College Station, TX 77843-3123, USA, (2001)
Suresh A. Mortensen, Fundamentals Of Functionally Graded Materials – Processing and Thermo- Mechanical Behavior of Graded metals and Metal-Ceramic Composites, IOM Communications, (1998)

[ref1] Miyamoto Y. and Kaysser W.A., Functionally Graded Materials – Design, Processing and Applications, Kluwer Academic Publishers, (1999)

[ref2] Ghosh A. and Reimanis Ivar, Functionally Graded Materials: Manufacture, Properties and Applications Ceramic Transactions, 76, (1997)

[ref3] Cooley William and Captain G., USAF, Application of Functionally Graded Materials in Aircraft Structures, Thesis work, March (2005)

[ref4] Singha M.K., Prakash T. and Ganapathi M., Finite element analysis of functionally graded plates under transverse load, Finite Elements in Analysis and Design 47, 453–460 (2011)

[ref5] Reddy J.N. and Zhen-Qiang Cheng, Three-dimensional thermomechanical deformations of functionally graded rectangular plates, Department of Mechanical Engineering, Texas A and M University, College Station, TX 77843-3123, USA, (2001)

[ref6] Suresh A. Mortensen, Fundamentals Of Functionally Graded Materials – Processing and Thermo- Mechanical Behavior of Graded metals and Metal-Ceramic Composites, IOM Communications, (1998)