T
Tarasankar Debroy
Researcher at Pennsylvania State University
Publications - 324
Citations - 21939
Tarasankar Debroy is an academic researcher from Pennsylvania State University. The author has contributed to research in topics: Welding & Weld pool. The author has an hindex of 70, co-authored 310 publications receiving 16635 citations. Previous affiliations of Tarasankar Debroy include University of Cambridge & Massachusetts Institute of Technology.
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Tailoring complex weld geometry through reliable heat-transfer and fluid-flow calculations and a genetic algorithm
Amit Kumar,Tarasankar Debroy +1 more
TL;DR: In this paper, a genetic algorithm was used to determine multiple pathways to achieve a specified weld attribute such as the weld geometry, and the proposed approach was demonstrated in complex gas metal-arc (GMA) fillet welding of low-alloy steel.
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Influence of oxygen on weld geometry in fibre laser and fibre laser–GMA hybrid welding
TL;DR: In this article, the effect of oxygen on weld geometry during keyhole mode welding has been investigated by adding a small amount of oxygen to the shielding gas during fiber laser and fibre laser-gas metal arc hybrid welding.
Evolution of Titanium Arc Weldment Macro and Microstructures - Modeling and Real Time Mapping of Phases
TL;DR: In this paper, a transient, three-dimensional, turbulent heat transfer and fluid flow model was developed to calculate the temperature and velocity fields, thermal cycles, and the shape and size of the fusion zone.
Journal Article
Mitigation of root defect in laser and hybrid laser-arc welding: A model is developed that predicts the range of processing conditions that produce defect-free, complete-joint-penetration welds
TL;DR: In this article, a series of laser and hybrid laser-gas metal arc welds has been completed in which each force is independently varied and the internal morphologies of the resulting root defects are characterized by X-ray computed tomography and found to vary significantly when welding with either the laser or hybrid laser arc process.
Journal Article
Role of sulfur and processing variables on the temporal evolution of weld pool geometry during multikilowatt laser beam welding of steels : The beneficial effects of sulfur on weld pool size and shape are strongly dependent on controlling convective heat transfer
TL;DR: In this paper, the authors examined the temporal evolution of weld pool geometry during multikilowatt conduction mode laser spot welding of steels by conducting over eighty carefully planned experiments and concomitant analysis of the data by numerical simulation of heat transfer and fluid flow.