My research focuses on the characterization, mechanics, computational modeling, and design implementation of shape memory polymers (SMP) actuators. The SMPs are combined with a carbon-fiber-reinforced-polymer (CFRP) substrate to create an unimorph composite actuator (UCA). A UCA is an element capable of bi-stable configuration when supplied with an external stimulus consisting of one active layer (SMP) to which the stimulus is applied and one inactive layer (CFRP) that supports the active layer. The primary goal of this research is to develop a better understanding of the mechanics of these actuators and use them in reconfigurable, deployable structures such as micro air vehicle wings and satellite arrays. I primarily use digital image correlation (DIC), a non-contact, full-field shape and deformation measurement technique to obtain full-field displacements and strains of experiments using these UCAs. I have investigated the fixity, recoverability, and thermal stability of the UCAs to determine the viability of using such actuators in reconfigurable structures. I have also characterized both the SMP and composite materials using both universal testing machines and full-field methods. In addition to experimentally evaluating the actuators, I have analytically modeled the fixity and thermal stability which were validated both experimentally and using ABAQUS finite element modeling. Additional projects include using DIC to determine full field deflections of passively adaptive micro air vehicle (MAV) wings in wind tunnel settings, conducting a pilot study on the ratcheting behavior of titanium and aluminum alloys, quantifying the tensile and shear properties of 3D printed materials, and constructing carbon fiber golf shafts with unique fiber orientation that exhibit bend-twist coupling behavior. I have also coauthored multiple grant applications with my professor and reviewed several journal papers during my time as a graduate student.

I work with both graduate and undergraduate students to develop and build Micro Air Vehicles (MAVs) and Unmanned Aerial Vehicles (UAVs) ranging in size from 6 inches to 3 feet. These aircraft are manufactured using carbon fiber pre-preg, Kevlar, fiberglass, silicone rubber, or a combination of these materials depending upon the project and aircraft use. I also utilize CAD software and MATLAB coding to develop wing molds for UAVs. These molds are cut via CNC machine and used during the composite layup process. I am responsible for training new undergraduate research assistants the proper composite layup techniques, micro air vehicle manufacturing, and avionics integration. I also mentor high school students in the precollegiate Student Science Training Program (SSTP) during summer semesters who work in the lab on various projects. I oversee the bi-annual laboratory inspections and perform all routine maintenance on lab equipment including universal testing machines, vacuum pumps, vacuum deposition machines, composite ovens, 3D printers, and general laboratory tools. Additionally, I am in charge of purchasing and accurately inventorying the laboratories supplies including micro air vehicle parts and composites construction raw materials.

Tutored students on the proper analysis techniques required for aircraft structures.

Helped students to properly learn the concepts and background material for mechanics of materials.

Supervised assignment grading schedule of other teaching assistants, created detailed assignment solutions, and graded exams for over 500 students.

Guided students through the design and optimization of unmanned aerial vehicles in the department’s aerospace engineering capstone course. I was the teaching assistant for this class from January 2016 to April 2016 as well.

Taught students to use mills, lathes, CNC machines, and other manufacturing equipment for the construction of remote controlled robots. Confirmed students filed proper engineering change notices and followed correct dimensioning and tolerance (basic GD&T) practices.

Provided constructive feedback and guidance to students developing novel mechanical systems in the department’s mechanical engineering capstone course. I was a teaching assistant for this class from August 2014 to December 2014 as well.

Aided students in understanding the fundamentals of finite element method, including the use of finite element software to model, analyze, and design mechanical systems.

Assisted students in the understanding of basic aircraft stability, controls, and flight performance.