[Research Project, Sep 2018 - Apr 2019] Computational Analysis of Autonomous Superstructure Growth from Colloidal Nanoparticles
For self-assembly of nanoscale colloidal particles, a necessary condition is that the geometric parameters are conforming to the symmetry of the target superstructure. Additionally, it's also desirable that the self-assembled superstructure will have certain macroscopic properties. In the inverse design paradigm, both of these criteria are of equal importance. Using genetic algorithm, a target property of the structure has been optimized in a two-stage analysis in a bottom-up approach. The flexibility of genetic algorithm makes the method easily portable to other models as well as computationally efficient for sparse phase space. 

[Research Project, May 2018 - July 2018] Analysis of Photonic and Phononic Properties of Self-assembled Colloidal Cluster
Under suitable conditions, DNA-functionalized colloid particles can self-assemble into designed symmetries. By carefully designing the interaction, it's possible to create artificial material with exotic properties. This study investigates several self-assembly scenarios and investigates the phononic and photonic property for successfully assembled superstructures.

The project above is an extension of the core ideas of this project and was aimed at automated design and optimization of the assembled system.

[Research Project, 2016 - 17] A New Computational Scheme for Stress Analysis of Boundary-value Problems of Anisotropic Materials 
This is part of my undergraduate thesis done under the supervision of Prof. Dr. S. Reaz Ahmed at Department of Mechanical Engineering, Bangladesh University of Engineering and Technology. The aim was to develop a numerically efficient solution method for boundary value problems of anisotropic fiber composites. A summary of the study as follows:
  • Mathematical modeling of anisotropic fiber composite in terms of a single function.
  • Formulation of a computational scheme for the mathematical model developed.
  • Numerical solution of a few chosen problems using MATLAB (Guided cantilever beam, solid bar under uniaxial tension).
  • Validation of the method and solution by comparing with contemporary methods (FEM - ANSYS, Analytical Soln).

[Download presentation]

[Research Project, 2016] Displacement Potential Based Numerical Modeling of Elastic Field at Material Interface
This project focused on a novel numerical methodology to investigate an predict the elastic field in an orthotropic as well as isotropic structure in presence of heterogeneity. Displacement potential function had been employed for mathematical formulation and FDM had been used to solve few heterogeneous beam problems. This research was done in collaboration with Bibekananda Datta.

[Mechatronics Project, 2015] Arduino Based Two Wheeled Balancing Robot
An Arduino based balancing robot had been constructed and programmed for Junior Year Design project in collaboration with 3 other team members. 

The project involved-
  • Mechanical Design (SolidWorks)
  • Electrical Circuit Design
  • Sensor interfacing
  • Programming (Arduino Programming Language)
  • PID control algorithm design and tuning. 
The poster for this project is available here.

[Mechatronics Project, 2015] Ultrasonic Sensor Based Digital Measurement System
This Arduino based electronic system employed ultrasonic sensors to (approximately) measure the dimension of a rectangular box placed on the platform in between the sensors. The working principle was simple-
  • Measure time (t) for each of the sensor to ping (send & receive signal).
  • Measure dimensions in 2 directions based on signals of 4 sensors.
  • Height is measured by a 5th sensor at the top.
  • Calculate dimensions and volume.

Other not-so-notable projects: 
  • Quadcopter (2014): The project aim was to design, build, and program a custom quadcopter using Arduino. 
  • Solar System Simulation (2015): A multibody simulation project in MATLAB. Used to simulate the trajectory of planets under Newtonian mechanics.
  • Pipe Inspection Robot (Assisted, 2014): An autonomous robot designed to inspect vertical pipes with a diameter of 5 to 5.5 inch.
  • Remote Controlled Car (2013): My first project. An AVR ATmega 32 based wireless controlled car.