A5012933187- High-Velocity Impact and Material Behavior
- Advanced ceramic materials synthesis
- Metal and Thin Film Mechanics
- Microstructure and mechanical properties
- Energetic Materials and Combustion
- Calcium Carbonate Crystallization and Inhibition
- Advanced Battery Technologies Research
- Advancements in Battery Materials
- Thermal properties of materials
- Bone Tissue Engineering Materials
- Aluminum Alloys Composites Properties
- Nuclear Materials and Properties
- Boron and Carbon Nanomaterials Research
- Advanced Battery Materials and Technologies
- Advanced materials and composites
- Numerical methods in engineering
- Force Microscopy Techniques and Applications
- Advanced Surface Polishing Techniques
- Spectroscopy Techniques in Biomedical and Chemical Research
- Composite Material Mechanics
- Mechanical Behavior of Composites
- Fatigue and fracture mechanics
- High Temperature Alloys and Creep
- Structural Response to Dynamic Loads
- Fusion materials and technologies
Purdue University West Lafayette
2015-2024
Maharishi Markandeshwar University, Mullana
2022-2023
Aligarh Muslim University
2021
American Institute of Aeronautics and Astronautics
2009-2020
University of Delhi
2016
University of Wisconsin–Madison
2012
Northwestern University
2011
University of Notre Dame
2005-2010
Georgia Institute of Technology
2003-2005
Indian Agricultural Research Institute
1990
Abstract The cohesive finite element method (CFEM) allows explicit modelling of fracture processes. One form CFEM models integrates surfaces along all boundaries, facilitating the resolution arbitrary paths and patterns. This framework also permits account microstructures with multiple length scales, allowing effects material heterogeneity, phase morphology, size distribution to be quantified. However, use this traction–separation laws initial stiffness imposes two competing requirements on...
Abstract Temperature rise in Lithium-ion batteries (LIBs) due to solid electrolyte interfaces breakdown, uncontrollable exothermic reactions electrodes and Joule heating can result the catastrophic failures such as thermal runaway, which is calling for reliable real-time electrode temperature monitoring. Here, we present a customized LIB setup developed early detection of during simulated runaway tests incorporating modern additive manufacturing-supported resistance detector (RTD). An...
Thermal safety is of prime importance for any energy-storage system. For lithium-ion batteries (LIBs), numerous incidences have been roadblocks on the path toward realizing high-energy-density next-generation batteries. Solutions, viz. electrolyte additives, shut-off separators, and exotic coatings, limited scope in their operating voltage window, response time, performance. Various temperature monitoring devices tested out with limitations. Here, we report situ sensing thermal signatures...
Dynamic fracture in two-phase Al2O3/TiB2 ceramic composite microstructures is analyzed explicitly using a cohesive finite element method (CFEM). This framework allows the effects of microstructural heterogeneity, phase morphology, distribution, and size scale to be quantified. The analyses consider arbitrary morphologies entail explicit tracking crack growth patterns. approach involves use CFEM models that integrate surfaces along all boundaries as an intrinsic part material description....
Nanoscale engineered materials with tailored thermal properties are desirable for applications such as highly efficient thermoelectric, microelectronic and optoelectronic devices. It has been shown earlier that by judiciously varying the interface boundary resistance (TBR), conductivity in nanostructures can be controlled. In presented investigation, role of TBR controlling at nanoscale is analyzed performing non-equilibrium molecular dynamics (NEMD) simulations to calculate a range Si–Ge...
A continuum theory is used to study ordering in liquid crystal nanodroplets. The free energy functional that describes the system minimized using an Euler–Lagrange approach and unsymmetric radial basis function method. equilibrium morphology nanodroplets shown represent a delicate balance between bulk surface contributions; when radius of droplet reaches critical value, altered undergoes transition. By controlling anchoring conditions at droplet's surface, one can control where transition...
A continuum theory is used to study the interactions between nanoparticles suspended in nematic liquid crystals. The free energy functional that describes system minimized using an Euler–Lagrange approach and unsymmetric radial basis function method. It shown nanoparticle liquid-crystal mediated can be controlled over a large range of magnitudes through changes anchoring particle diameter. results presented this work serve reconcile past discrepancies theoretical predictions experimental...
The thermal instability of polymer separators severely threatens the safety characteristics lithium-ion (Li-ion) batteries. Separators will melt, shrink, vaporize, and collapse under high temperatures, leading to internal short circuits runaway catastrophes cell. Therefore, amelioration battery challenges benefits from a fundamental understanding separator behaviors thermally abusive scenarios. This work investigates role stability in modulating Li-ion cell performance. Three types made...
Abstract Direct access to internal temperature readings in lithium-ion batteries provides the opportunity infer physical information study effects of increased heating, degradation, and thermal runaway. In this context, a method insert sensors into commercial 18650 cells determine short- long-term through characterization testing is developed. Results show that sensor insertion only causes decrease capacity 0.5–2.3%, an increase DC resistance approximately 15 mΩ. The temperatures modified...