Title Compliance-Tailored Multilayers: Theory, Computation, 3D Printing and Testing Supervisors Dr. Kumar Shanmugam, Associate Prof., Dept. of Mech. and Mat. Engg., Khalifa University of Sci. & Tech. , Abu Dhabi, U. A. E Description Mitigation of stress concentrations in multilayered materials and structures, particularly at free-edges, represents a significant opportunity for performance enhancement of such systems. Undesirable edge effects can be mitigated by appropriately spatially tuning the material properties. The emergence of additive manufacturing (AM) technologies, especially multi-material 3D printing, offers the possibility of cost-effective automation of the fabrication process and provides greater flexibility for locally tailoring the material architecture in three-dimensions across scales. This study is therefore focused on theoretical and computational modeling, additive manufacturing and experimental evaluation of compliance-tailored multilayers.
Title Polynomial chaos characterized eigenvalue problem for large sparse systems Supervisors Dr. Debraj Ghosh, Associate Prof., Dept. of Civil Engineering, IISc Bangalore Description The Randomness in the properties (like Stiffness) of structural systems was modelled using chaos theory. This Stochastic finite element model was implemented using C++ as a platform using open source libraries like LAPACK and BLAS. The accuracy of results were tested against the classical Mote-Carlo algorithm and found to be in close proximity while the computation time needed was only a fraction of that needed for classical Monte-Carlo.