About me
Programming languages & tools: MATLAB, ABAQUS (FEA), Microsoft office, LaTeX, STAAD Pro, AutoCAD, C++ (limited)
Domain: Structural Analysis, Solid Mechanics, Material Modelling, Fine Element Analysis, Structural Dynamics, Fracture Mechanics, Statistical Methods.
Mechanical/Structural Engineer in boston metro area
I am a mechanical/structural engineer with industrial and research experience in the Boston metro area. As an engineering consultant, I provided services to clients in different industries such as consumer products, medical devices, and energy storage. I assisted clients to meet their goals in product design and development, failure analysis and mitigation, material selection and calibration. These included seeking solutions to fast turn-around problems as well as in research and development projects. I have extensive experience with static and dynamic thermo-mechanical simulation using finite element analysis (FEA) for problems with challenging contact conditions. Before joining Veryst, I was a postdoctoral researcher and a graduate student in Civil/Mechanical Engineering at the Johns Hopkins University in Baltimore, Maryland. I have over 6 years of experience in the fields of solid mechanics, material modelling, fracture mechanics, and structural analysis. My interests lie in applying my expertise to solving multi-physics problems with practical applications, particularly in the clean energy space.
EDUCATION
Ph.D at Johns Hopkins University
M.S.E at Johns Hopkins University
M.Tech. at IIT KGP
B.E. at Jadavpur University
2015-2021
2015-2018
2013-2015
2009-2013
Experience
Senior Engineer, Veryst Engineering Llc., Needham, U.S.A.
(2022 – 2023)
Engineering consultant in Boston Metro area.
Postdoctoral Fellow, Graduate Research & Teaching Assistant, Johns Hopkins University, Baltimore, U.S.A.
(2015 – 2022)
Doctoral dissertation titled “Fragmentation, granular transition & impact performance of ceramics”.
Advisor: Prof. Lori Graham-Brady
Graduate Research & Teaching Assistant, IIT Kharagpur, India
(2013 – 2015)
Masters dissertation titled “Size effect in concrete under compression”.
Advisor: Prof. Arghya Deb
Research Projects
FRACTURE AND FRAGMENTATION OF ARMOR CERAMICS
As a PhD student in the Graham-Brady group and the Hopkins Extreme Materials Institute, I have studied the dynamic behavior of armor ceramics with boron carbide as a model material. High hardness and low weight of boron carbide makes it suitable for body armors. During impact experiments, simultaneous growth and coalescence of multiple cracks lead to extensive fragmentation in the region right under the indenter, also known as the Mescall zone. Thereafter the material behaves as a granular solid, leading to energy dissipation and further comminution through granular flow. I have studied the influence of microstructural and mechanical properties on the transition of a ceramic from a cracked microstructure to a granular material and its subsequent granular flow. Understanding the sensitivity of model parameters of an integrated multi-scale and multi-physics ceramics model on impact performance not only assists in developing more predictive models but also provides guidance towards processing modifications that can improve performance and prioritize calibration experiments. I have also studied the dependence of the underlying microstructure on fragment morphology and the corresponding material design implications.
Size effect in concrete under compression
As a masters student in Prof. Arghya Deb’s lab at the Indian Institute of Technology, Karagpur my research was geared towards understanding the energetic size effect in quasi-brittle materials like concrete under compression for different platen conditions. Shear band failure in concrete cylinders was modelled via an inclined corner crack with a cohesive zone, and the effect of finite dimensions on crack growth was related to the compressive strength. Using a combination of boundary collocation methods with least squares optimization and Rice and Bucknerās weight function approach, the stress intensity factor of the aforementioned crack was solved and verified against J-integral solutions using the Concrete Damage Plasticity model in ABAQUS.
Expertise
I work in the area of computational mechanics. Click here to view my resume.
Solid mechanics
Thorough understanding of solid mechanics, strength of materials, structural analysis, structural dynamics, and fracture and fragmentation via consulting, coursework, teaching, and independent research projects.
Crack assemblies with coalescence zones 
Crack network 
Cracked microstructure before granular transition 
Statistical crack coalescence model 
Crack coalescence for parallel cracks in particle based simulations 
Extreme vertices of fragments used to extract morphological roundedness 
Resolution dependence on morphology
Computational modelling
Extensive scripting experience primarily in MATLAB. Adept at application of numerical and statistical methods to analyse and interpret data. Experience developing probabilistic analytical models to simplify complicated mechanics.
CAE Analysis
Experience using FEA software (ABAQUS) and multi physics simulation software (COMSOL) to perform static/dynamic structural and thermo-mechanical analysis using linear/non-linear material models. Previous experience in structural analysis software (STAAD) and drawing software (AutoCAD).
COmmunication
Presented inĀ multiple conferencesĀ and reviews for oral and poster sessions. Won theĀ best poster award (Judgesā choice)Ā atĀ MACHĀ 2019. Been a teaching assistant for several courses during my graduate career. Published journal articles including two first author articles in the the Journal of Applied Mechanics and the Journal of the American Ceramic Society (JACerS). Two of the JACerS papers received best paper awards at the 2022 MS&T Conference.
Amartya Bhattacharjee 
