S
Soundarapandian Santhanakrishnan
Researcher at Indian Institute of Technology Madras
Publications - 32
Citations - 519
Soundarapandian Santhanakrishnan is an academic researcher from Indian Institute of Technology Madras. The author has contributed to research in topics: Laser & Laser power scaling. The author has an hindex of 13, co-authored 32 publications receiving 415 citations. Previous affiliations of Soundarapandian Santhanakrishnan include University of North Texas & Southern Methodist University.
Papers
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Journal ArticleDOI
One-dimensional multipulse laser machining of structural alumina: evolution of surface topography
Hitesh D. Vora,Soundarapandian Santhanakrishnan,Sandip P. Harimkar,Sandra K. S. Boetcher,Narendra B. Dahotre +4 more
TL;DR: In this paper, a multistep computational model based on COMSOL™ multiphysics was designed and developed to study the influence of multiple laser pulses on the evolution of surface roughness of alumina.
Journal ArticleDOI
Evolution of surface topography in one-dimensional laser machining of structural alumina
Hitesh D. Vora,Soundarapandian Santhanakrishnan,Sandip P. Harimkar,Sandra K. S. Boetcher,Narendra B. Dahotre +4 more
TL;DR: In this article, a multistep computational model based on COMSOL™ multiphysics was developed to study the influence of various single-pulse laser energy densities and associated physical phenomena (recoil pressure, Marangoni convection, and surface tension) on the temperature history, fluid velocity, crater size and surface topography.
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An experimentally based thermo-kinetic hardening model for high power direct diode laser cladding
TL;DR: In this article, an experimentally based finite element (FE) thermal model is developed to predict the cross-sectional temperature history of the cladding process, and the acquired temperature history from the FE model is used to predict temperature gradient, rates of heating and cooling cycles, and solidification of the clad to the substrate.
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Hardness prediction in multi-pass direct diode laser heat treatment by on-line surface temperature monitoring
TL;DR: In this paper, a process model was developed using the temperature measured by the coupled infrared temperature measurement system (pyrometer and camera) correlated with the measured values of case depth hardness of the tool steel AISI S7 (hypo-eutectoid steel) for the specified multi-pass laser heat treatment conditions (1000-2500 J).
Journal ArticleDOI
Laser assisted Fe-based bulk amorphous coating: Thermal effects and corrosion
Shravana Katakam,Vivek Kumar,Soundarapandian Santhanakrishnan,Ravishankar Rajamure,P. Samimi,Narendra B. Dahotre +5 more
TL;DR: In this article, a multi-physics based heat transfer model was developed to evaluate the thermal histories experienced during processing and the thermodynamic parameters like peak temperatures and cooling rates were evaluated using the computational model and correlated to the evolution of microstructure.