Our lab works on problems spanning fundamental science to technology development, from materials challenges to manufacturing systems. Click any tile below to jump to that theme.
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Defects & Differential Geometry ↑ Back to tiles
An elastodynamic framework for defects in solids using a differential geometric framework (differentiable manifolds, fibre bundles), applicatiions to scattering and dynamic deformation.
Geometric treatment of conduction electron scattering by crystal lattice strains and dislocationsK Viswanathan · S ChandrasekarJournal of Applied Physics, 116(24), 245103
Long-running work on adhesive interfaces and interfacial friction, best known via Schallamach and other related interface waves. Theory and experimental investigations.
Onset and propagation of slip at adhesive elastic interfacesV Dawara · K ViswanathanPhysical Review E, 110(2), 025004
Fifty years of Schallamach waves: From rubber friction to nanoscale fractureK Viswanathan · S ChandrasekarPhilosophical Transactions of the Royal Society A, 380, 20210339 (Invited article. Special volume edited by K Kendall (FRS) celebrating 50 years since the publication of the Johnson-Kendall-Roberts model in adhesion.)
Propagating Schallamach-type waves resemble interface cracksMA Ansari · K ViswanathanPhysical Review E, 105(4), 045002
Distinct stick-slip modes in adhesive polymer interfacesK Viswanathan · NK SundaramWear, 376, 1271–1278
Stick-slip at soft adhesive interfaces mediated by slow frictional waves.K Viswanathan · NK Sundaram · S ChandrasekarSoft Matter, 12(24), 5265-5275
Slow wave propagation in soft adhesive interfacesK Viswanathan · NK Sundaram · S ChandrasekarSoft Matter, 12(45), 9185-9201 (Journal cover feature)
Nucleation and propagation of solitary Schallamach wavesK Viswanathan · A Mahato · S ChandrasekarPhysical Review E, 91(1), 012408
Fracture, fragmentation, and failure, combining experimental mechanics (a novel digital image correlation method, a gas-gun impact framework) with computational models.
Dynamic fragmentation of residually stressed brittle solids: Microscopic crack branching and emergent length scalesV Dawara · K ViswanathanJournal of Mechanics and Physics of Solids (In Press)
Nucleation and propagation of self-healing cracks at an elastic adhesive interfaceV Dawara · S Puneeth · K ViswanathanInternational Journal of Solids and Structures, 324, 113639
In situ analysis of plastic flow near interfaces and free surfacesD Gupta · A Udupa · K ViswanathanMeasurement Science and Technology, 35(4), 045601
Fracture, my friend: the cutting of gummy metalsA Udupa · DP Mohanty · JB Mann · K Viswanathan · JM Davis · S ChandrasekarInternational Journal of Fracture, 247(2), 151–166
Estimation of surface and interface strains in deformation processing using an ensemble averaged digital image correlation methodD Gupta · K ViswanathanJournal of Manufacturing Processes, 120, 86–95
Design of a low-velocity impact framework for evaluating space-grade materialsV Dawara · A Bajantri · HS Dhami · SN Murty · K ViswanathanActa Astronautica, 212, 606–616
Random Grid-Based DIC Analysis of Plastic Flow Near Interfaces in Deformation ProcessingD Gupta · K ViswanathanASME 2022 17th International Manufacturing Science and Engineering Conference
Propagating Schallamach-type waves resemble interface cracksMA Ansari · K ViswanathanPhysical Review E, 105(4), 045002
Evaluating performance metrics in non-homogeneous cutting processes using a random-grid based digital image correlation (DIC) methodD Gupta · A Udupa · K ViswanathanManufacturing Letters, 30, 44–48
Consolidation and sintering of granular and regolith-like materials.
Biopolymers can be used for consolidation of lunar and Martian regolithsN Gupta · A Kumar · K ViswanathanActa Astronautica
Bacterial bio-cementation can repair space bricksN Gupta · R Kulkarni · AR Naik · K Viswanathan · A KumarFrontiers in Space Technologies, 6, 1550526
Synthetic space bricks from lunar and Martian regolith via sinteringN Gupta · V Dawara · A Kumar · K ViswanathanAdvances in Space Research, 74(8), 3902–3915
Liquid state sintering enhances consolidation in basalt-rich lunar regolithN Gupta · V Dawara · A Kumar · K ViswanathanAdvances in Space Research, 74(4), 1693–1705
Pore-microcrack interaction governs failure in bioconsolidated space bricksV Dawara · N Gupta · A Dey · A Kumar · K ViswanathanCeramics International, 48(23), 35874–35882
Microbial induced calcite precipitation can consolidate martian and lunar regolith simulantsR Dikshit · N Gupta · A Dey · K Viswanathan · A KumarPloS one, 17(4), e0266415
Space bricks: From LSS to machinable structures via MICPR Dikshit · A Dey · N Gupta · SC Varma · I Venugopal · K Viswanathan · A KumarCeramics International, 47(10), 14892–14898
How curvature and confinement affect solidification, particularly in the context of powder particles for additive manufacturing.
On unconstrained solidification of spherical metallic dropsP Panda · H Dhami · K ViswanathanProceedings of the Royal Society A, 482(2342), 20260044
Of fiery sparks and glittering spots: Melting-resolidification and spherical particle formation in abrasionH Dhami · P Panda · S Puneeth · K ViswanathanProceedings of the Royal Society A, 479(2271), 20220629
On the Formation of Spherical Particles in Surface GrindingHS Dhami · K ViswanathanASME 2020 15th International Manufacturing Science and Engineering Conference
A directional solidification framework mapped to additive manufacturing via similitude. This is our most recent development on using a ‘metallurgical wind tunnel’ to explore how solidifying fronts interact with defects, bubbles, and segregation, as well as dynamics of grain growth.
A Similitude Framework for In Situ Investigation of Solidification Dynamics in Laser-Based Metal Additive ManufacturingP Saikiran · K ViswanathanPreprint, 2026
In Situ Observation of Hot Cracking in a Transparent Analog of Laser Metal Additive ManufacturingP Saikiran · K ViswanathanPreprint, 2026
In Situ Investigation of Solidification in Metal Additive Manufacturing through Complete SimilitudeP Saikiran · P Panda · K ViswanathanPreprint, 2026
Scalable, modular DED-based platforms for hybrid manufacturing with in-process inspection and simultaneous machining capabilities. This work has been the subject of several patent filings and builds on in-house controller development.
A sensing-integrated metal additive manufacturing platform for exploring the use of non-standard powdersH Dhami · P Panda · P Saikiran · R Garg · K ViswanathanJournal of Manufacturing Science and Engineering, 146(3), 031006
Evaluating gas-driven flow mechanics of non-spherical powders for directed energy depositionR Garg · HS Dhami · PR Panda · K ViswanathanJournal of Manufacturing Processes, 99, 260–271
Two DED platforms built and prototyped over seven-plus years in our laboratory. The most recent one involves hybrid additive-subtractive-inspection capabilities and builds on our in-house controller framework (multiple patents pending).
Numerical and experimental studies on transport processes in laser-based direct energy depositionA Deb · PR Panda · K Viswanathan · P DuttaJournal of Materials Science, 60(3), 1561–1573
Investigating particle morphology, quality, flowability and performance of abrasive-grinding based powders for directed energy depositionHS Dhami · K ViswanathanPowder Technology, 437, 119533
A sensing-integrated metal additive manufacturing platform for exploring the use of non-standard powdersH Dhami · P Panda · P Saikiran · R Garg · K ViswanathanJournal of Manufacturing Science and Engineering, 146(3), 031006
Evaluating gas-driven flow mechanics of non-spherical powders for directed energy depositionR Garg · HS Dhami · PR Panda · K ViswanathanJournal of Manufacturing Processes, 99, 260–271
Production of powders for metal additive manufacturing applications using surface grindingHS Dhami · PR Panda · K ViswanathanManufacturing Letters, 32, 54–58
Directed energy deposition using non-spherical powders?R Garg · HS Dhami · PR Panda · K ViswanathanASME 2022 17th International Manufacturing Science and Engineering Conference
Metal Powders via Surface Grinding: Applicability and Performance Evaluation for Laser SinteringHS Dhami · PR Panda · P Saikiran · K ViswanathanASME 2022 17th International Manufacturing Science and Engineering Conference
On the Formation of Spherical Particles in Surface GrindingHS Dhami · K ViswanathanASME 2020 15th International Manufacturing Science and Engineering Conference
A tool-free finishing method for additively manufactured parts.
Uncertainty-guided active learning for surrogate prediction of stream-finishing wear fieldsA Kumar · P Saikiran · V Dawara · K ViswanathanPreprint, 2026