A5083030197- Numerical methods in engineering
- Fatigue and fracture mechanics
- Welding Techniques and Residual Stresses
- Geotechnical Engineering and Underground Structures
- Fluid Dynamics and Vibration Analysis
- Non-Destructive Testing Techniques
- Metal Forming Simulation Techniques
- Fluid Dynamics and Turbulent Flows
- Metal and Thin Film Mechanics
- Metallurgy and Material Forming
- Aerodynamics and Fluid Dynamics Research
- High-Velocity Impact and Material Behavior
- Fluid Dynamics Simulations and Interactions
- Advanced Welding Techniques Analysis
- Wind and Air Flow Studies
- Hydrogen embrittlement and corrosion behaviors in metals
- Nuclear Materials and Properties
- Advanced Numerical Methods in Computational Mathematics
- Mechanical Failure Analysis and Simulation
- Tribology and Lubrication Engineering
- Advanced ceramic materials synthesis
- Plasma and Flow Control in Aerodynamics
- Rock Mechanics and Modeling
- Vibration and Dynamic Analysis
- Aerodynamics and Acoustics in Jet Flows
Universität Hamburg
2023
Indian Institute of Technology Kanpur
2023
Bhabha Atomic Research Centre
2010-2022
Indian Institute of Technology Roorkee
2015-2022
National Institute of Technology Raipur
2019
Bhabha Atomic Research Center Hospital
2016-2017
Indian Institute of Management Indore
2017
A detailed flow field behind a stationary square cylinder with attached rigid and flexible splitter plates has been studied using particle image velocimetry, constant temperature anemometry, visualization techniques. wide range of lengths the plate (L/B = 0–8) are considered, their respective wake interference is reported. The investigation carried out at an intermediate regime three Reynolds numbers 600, 1000, 2000 (based on blocking width “B” cylinder). literature seriously lacks...
The Ranga Reserve Forest in Assam, India, is a crucial ecological enclave the biodiverse northeasternregion. forest’s diverse landscape, characterized by riverine and hilly terrain, offers habitat mosaic conducive toa rich array of amphibians reptiles. We herein present comprehensive inventory herpetofauna conductedfrom March 2021 to June 2022. encountered total 60 herpetofaunal species (13 47 reptiles:11 lizards, 34 snakes, two turtles), including critically endangered, vulnerable,...
In many practical applications, functionally graded materials (FGMs) are subjected to cyclic thermal loads which cause fatigue failure of the components. Thus, needs be considered in instrumenting design components made from FGMs. present work, numerical simulation crack growth three different namely a unidirectional FGM aluminum alloy and alumina (ceramic), an equivalent composite consisting same volume fractions ceramic as FGM, alloy, is carried out using extended finite element method...
In the present work, mechanical properties of pressure tube material (Zr-Nb2.5) are evaluated using coupled finite element–element-free Galerkin approach. Penalty approach is used to impose contact constraints and non-penetration condition at interface. An efficient node-to-segment algorithm employed model behavior. updated Lagrangian large deformation. Loading unloading response indentation process analyzed von-Mises Gurson-Tvergaard-Needleman (GTN) plasticity models. multiple indentations,...
In the present work, extended finite element method has been used to simulate fatigue crack growth problems in functionally graded material presence of holes, inclusions, and minor cracks under plastic plane stress conditions for both edge center cracks. Both soft hard inclusions have implemented problems. The validity linear elastic fracture mechanics theory is limited brittle materials. Therefore, needs be utilized characterize behavior material. A generalized Ramberg-Osgood model modeling...
In this work, extended finite element method (XFEM) is used to evaluate the stress intensity factors (SIFs) of a semi-elliptical part through thickness axial/circumferential crack. The pipe or pipe-bend having crack on outer surface subjected internal pressure opening bending moment. Partition unity approach enrich displacement approximation with help additional functions. To accurately model crack, level set functions are approximated by higher order shape Domain based interaction integral...
In this work, Automated Ball Indentation (ABI) technique is based on load controlled multiple indentations (at a single penetration location) of polished surface by spherical indenter (0.7 to 1.46 mm) and indentation depth progressively increased maximum user specified limit with intermediate partial unloading.This permits measurement yield strength, stress-strain curve, strength coefficient strain hardening exponent.ABI Testing was carried out samples different heat treatment conditions in...
The present work investigates the fatigue life of a functionally graded material (FGM) made aluminum alloy and alumina (ceramic) under cyclic mix mode loading. Element free Galerkin Method (EFGM) extended finite element method (XFEM) are employed to simulate compare crack growth. lives alloy, FGM an equivalent composite (having same composition as FGM) compared for major edge in rectangular domain.
Thick AISI 304L stainless steel plates were welded using the gas metal arc welding process, and through-thickness residual stresses evaluated by finite element simulation deep hole drilling technique. 3D moving heat source-based thermo-mechanical models implemented to evaluate stresses. The effects of weld groove geometries external restraints on pattern studied. maximum magnitude locked-in was recorded beneath top surface, at a depth around 6 mm. In comparison conventional groove, narrow...
The critical working condition of nuclear power plant equipment necessitates meticulous determination the welding process and parameters. In this work, some major influential factors were investigated to observe their effects on through-thickness residual stress distribution in multipass pressure vessel steel welds. regard, experiments conducted find characteristics stresses dispersed SA516 Grade 70 welds different groove geometries with distinct conditions. Three-dimensional finite element...