Sunali ..- Doctor of Philosophy (Pursuing)
- Researcher at Indian Institute of Technology Delhi
Sunali ..
- Doctor of Philosophy (Pursuing)
- Researcher at Indian Institute of Technology Delhi
I am involved in projects focused on vibration damping materials, passive noise control, and solid waste management
About
23
Publications
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Introduction
Sunali is a research scholar at the Center for Automotive Research and Tribology, IIT Delhi, India. Her work focuses on developing vibration damping materials from various solid wastes for automotive and industrial applications, as well as performing hyperelastic modeling of nonlinear materials.
Current institution
Additional affiliations
July 2016 - July 2018
Education
July 2012 - July 2016
Publications
Publications (23)
The present study focuses on the utilization of bamboo biochar (BB) as a filler in natural rubber (NR) composites. This work is the first attempt to investigate the influence of BB loading on the vibration damping and acoustical properties of NR composites. NR-BB composites were prepared according to the ASTM D3182-21a standard. Vibration damping a...
The present work aims to utilize two different waste carbonaceous fillers, i.e., recycled carbon black (RCB) (industrial waste) and recycled graphite (RGP) (Battery waste), for the fabrication of vibration damping composites. Three types of composites were prepared, i.e., Neat NR, NR/RCB20, and NR/RGP20, using natural rubber (NR) matrix according t...
This study explores the practical application of using spent graphite (SG) derived from lithium-ion battery waste as a sustainable reinforcing filler for fabricating rubber composites. Two types of rubber, natural rubber (NR) and butyl rubber (BR), were employed as matrices, and eight composites were fabricated by increasing SG loadings [0, 10, 20,...
Addressing the urgent need for sustainable materials, this study investigates the development of eco-friendly composites using Recycled Polypropylene (RPP) and Denim Shoddy (DS) for sound insulation. Two configurations were fabricated through compression molding: one with only RPP and the other incorporating a DS interlayer, repurposing waste mater...
Agricultural residues are one of the main sources of cellulose, hemicellulose, and lignin across the globe. Notably, the transformation of cellulose, hemicellulose, and lignin into value-added products such as bio-based materials, chemicals, and fuels has been an interest among researchers to create a sustainable bio-based economy. Among the bio-ba...
India generates abundant solid waste from various activities such as agriculture, industry, mining, and municipal operations, leading to severe environmental problems. Producing carbonaceous materials from these wastes through pyrolysis offers an economical, environmentally friendly, and high-recovery solution. This work focuses on fabricating natu...
Nowadays, there is a significant demand for eco-friendly composites reinforced with natural fibers in various engineering sectors, including automotive, packaging, and construction. This is due to their distinctive characteristics, such as biodegradability, lightweight, and affordability. The present research attempts to fabricate the composite for...
This study investigated the impact of unconstrained layer damping (UCLD) treatment configurations on the vibration-damping properties of mild steel (MS) using novel viscoelastic composite damping materials fabricated from butyl rubber (BR) and bamboo biochar (BB) as per the ASTM D3182-21a standard. Four different composite formulations were fabrica...
This study explores the potential of panels made from Recycled Polypropylene (RPP) and Waste Jute Fiber (WJF) for sound insulation applications. Two types of panels were fabricated by the compression molding process: Neat RPP and a composite of RPP reinforced with a WJF interlayer (RPP/WJF/RPP). The physical properties, namely density and mechanica...
The modern era of urbanization and technological advancements has witnessed a substantial increase in noise levels, making it paramount to understand and innovate in the field of sound insulation. This chapter explores the critical and continually evolving field of sound insulation, addressing major public health concerns associated with noise poll...
The supplementary information for the paper titled "Targeted Functionalization of Waste Lignocellulosic Biomass to Produce Sound Absorbing Materials" (DOI: https://doi.org/10.1007/s12649-024-02513-4) presents detailed experimental procedures and supplementary data for research aimed at developing sound-absorbing materials from waste rice straw. The...
Among the most abundantly available bioresources, lignocellulosic biomass offers a ‘green renewable’ alternative resource for producing high-value biomaterials suitable for acoustic applications. In this study, a systemic process is developed to fabricate sound absorbing material using refined cellulosic microfibrils generated from natural deep eut...
In this study, the use of machine learning (ML) models to predict sound transmission loss (STL) in particle-reinforced polymer composites has been examined. The work included extensive literature research and data extraction for training various ML models, focusing on their effectiveness in accurately predicting STL, which is crucial for evaluating...
The present study aims to utilize the carbonaceous filler (pyrolytic carbon black (PCB)) obtained from tire waste to fabricate composites for thermal, vibrational, and acoustical applications. Four composites were fabricated by increasing the PCB content (0, 10, 20, and 30 parts per hundred rubber (phr)) in the natural rubber (NR) matrix following...
Among the most abundantly available bioresources, lignocellulosic biomass offers a ‘green renewable’ alternative resource for producing high-value biomaterials suitable for acoustical applications. In this study, a systemic process is developed to fabricate sound absorbing material using refined cellulosic microfibrils generated from natural deep e...
Our study demonstrates that Natural Deep Eutectic Solvents (NADES) pretreatment of rice straw significantly enhances its sound absorption properties. This eco-friendly method removes lignin, increases cellulose accessibility, and forms structural changes, making pretreated rice straw a promising alternative to synthetic sound-absorbing materials fo...
Mitigating vibration in a system has many advantages, from decreasing noise output to increasing component life. Therefore, it is necessary to eliminate the mechanical vibration and sound through appropriate measures. State-of-the-art techniques seeks the utilization of sustainable carbonaceous resources for the development of sound insulating mate...
Noise pollution is a potential threat to human health and the environment. Using acoustic materials (barriers/insulators and absorbers) in the noise path is a customarily approach for noise control. Nowadays, compared to traditional sound insulating materials (metals, gypsum and concrete), polymers (plastics) have gained more interest among researc...
The current research focuses on using agricultural residues in acoustical applications. Employing a natural deep eutectic solvent (NADES) as a pretreatment medium effectively delignifies these residues. The cellulosic pulp derived post-pretreatment is a primary ingredient for manufacturing acoustic materials. Initial evaluations using an impedance...
This research demonstrates how the pretreatment process enhances the thermal stability and crystallinity of biomass, increasing its potential in high-temperature applications and improving its sound absorption properties. The material’s structure, characterized by micro and nano-pores created during pretreatment, facilitates effective sound dissipa...
Biorenewable feedstocks such as natural fibers have been explored to fabricate acoustic materials for sound-absorbing and insulating applications. Bio-based binders are utilized in the fabrication process to develop green acoustic materials with efficacy comparable to commercial synthetic acoustic materials. The efficacy of an acoustic material dep...
The transmission loss (TL) is an important acoustic property to evaluate the performance of a muffler, which needs to be thoroughly discussed and analyzed. In this work, the two most commonly used techniques for obtaining TL, i.e., two-load method and two-source method are discussed and compared experimentally. The experiments have been done using...
Extended Tube Resonators or ETRs have been used since long time to attenuate noise in several applications. With time there have been improvements in their design and structure and it's widely known that, due to sudden area discontinuities, evanescent higher-order modes are developed at the sharp edges of extended parts of ETRs and end corrections...
