Research Interests and Activities
Research Interests and Activities
Journal Articles
1. K. S. Shahed, A. Azeem, S. M. Ali, and M. A. Moktadir, “A supply chain disruption risk mitigation model to manage COVID-19 pandemic risk,” Environ Sci Pollut Res (2021). https://doi.org/10.1007/s11356-020-12289-4
2. F. Alam, & K. S. Shahed (2020), “Multi-Criteria Decision Making Models for Performance Evaluation and Selection of Suppliers applying Fuzzy TOPSIS and DEA.” International Journal of Applications of Fuzzy Sets and Artificial Intelligence, Vol 10, pp. 227–250.
Conference Paper & Abstract
1. Shahed, K., Manogharan, G. “Powder-Binder Interaction in Binder Jetting Process: A Simulation Study on Bimodal Powders” Proceeedings of ASME 2023 18th International Manufacturing Science and Engineering Conference Volume 1: Additive Manufacturing; Advanced Materials Manufacturing; Biomanufacturing; Life Cycle Engineering. https://doi.org/10.1115/MSEC2023-104366
2. F. Fan, K. S. Shahed, G. Manogharan,” Cost Analysis of Mass Finishing Additively Manufactured Ti6Al4V Parts,” IISE Annual Conference and Expo, 2023.
3. J. Griffis, K. Shahed, C. Okwudire, G. Manogharan, “Process Modeling of Multi-Material Laser Powder Bed Fusion,” Solid Freeform Fabrication (SFF) Conference, 2023
4. K. S. Shahed, H. Heo, G. Manogharan, Y. Jing, “Development of binder-jetting based skull phantoms for transcranial ultrasound research,” J Acoust Soc Am 153, A66 (2023). https://doi.org/10.1121/10.0018181
Conference/ Poster Presentations
“Primitive Architecture Fosters Cell Proliferation and Provides Mechanical Strength in 3-D Printed Polycaprolactone,” Orthopaedic Research Society 2024 Annual Meeting
“Mechanical Interface for Iterative Hybrid Additive and Subtractive Manufacturing,” IMSE Student Research Symposium 2021, Iowa State University
(in progress)
Head injuries are critical and offer little window of opportunity to diagnose. The "golden window" of opportunity is often lost during the transit to hospital. One of the technique that can be used to identify the nature of the injury in the field is ultrasonogram (USG) due to the portable nature of the technique. But every human skull is unique and the skull attenuates the USG signal. The goal of the research is to print human skull phantoms using hydroxyapatite which is the main constituent of the human bone. These phantoms will then be used to understand the attenuation of the USG and train a machine learning module. Binder jetting process will be used to print the phantoms.
(in progress)
Triply periodic minimal surfaces (TPMS) are widely used in biomedical applications as they provide mechanical strength as well as surface area for cell attachment, growth, and proliferation. PCL is a biodegradable material which supports cell growth and attachment. PCL is also cheap and easy to melt. We are using additive manufacturing process to generate TPMS structure with PCL and testing the coupons for the cell culture characteristics.
The carbon arc air process is a commonly used material removal process in the steel casting industry. This is primarily used for cutting off the riser and gates. It is also used for gouging out indications and pad washing. But the process requires the worker to be exposed to high noise and high-risk environments. The goal of this research is to optimally automate the process of carbon arc air gouging process to make it safer for the worker.
Investigated a novel approach using friction stir welding is investigated to improve the interlayer bonding between dissimilar polymer materials in the big area additive manufacturing (BAAM) process. The goal of this project is to achieve sufficient bonding strength between dissimilar materials without any machined mechanical joint for polymers.
Investigated mechanical bonding strategy to overcome poor thermal bonding for strat-pause additive printing of polymers. The objective of this project is to quantify the mechanical strength of a cold interface for hybrid manufacturing of carbon fiber composite.