Mechanical Engineering

Professional Summary (** years of DoD experience at the US Naval Research

Laboratory):

Mechanical Engineering / Design Engineering

New Product Development (Mechanical and Electro-Mechanical Devices)

Solid Modeling (GD&T per ASME Y14.5M, BOM, SolidWorks, Shark FX)

Finite Element Analysis (Dynamic, Multiphysical, Nonlinear,

COMSOL, Abaqus)

Additive Manufacturing (3D Polyjet Printing, SLS, DMLS, EBM)

Thermoset Composites (Wet Lay-up, Pre-Preg Stacks, VARTM,

Autoclave)

Thermoplastic Composites (Autoclave-Compression, Extrusion)

Composite Fibers and Fills (Carbon, Glass, PEEK, Kevlar, Spectra,

VGCF, LCP, CNT)

Research (Design of Experiments, Analysis, Evaluation)

Rapid Prototyping (FFF, SLA, SLS, DMLS, Injection Molding, CNC)

Mechanical Testing (Static, Fatigue, DMA, Shock, Ballistic, Blast)

Technical Communication (109 Technical Publications and Talks)

EDUCATION

North Carolina State University

BS (cum laude), MS, PhD (2002): Mechanical Engineering, Mathematics

Minors

WORK EXPERIENCE

MECHANICAL ENGINEER (2003-2014)

US Naval Research Laboratory, Washington, DC

Materials Science and Technology Division

Research Asst, TechNICIAN III, Analyst II, GAAN Fellow, Lecturer (1993-

2002)

North Carolina State University, Raleigh, NC

Department of Mechanical and Aerospace Engineering

TECHNICAL SKILLS

Materials Testing: Universal Load Frames, Drop Weight, Fatigue, DMA,

Shock.

Solid Modeling, FEA: SolidWorks, Ansys, COMSOL Multiphysics, ABAQUS

(Proven ability to learn new software as required)

Electro-Mechanical Design: Unique fixturing for component manufacture

and testing, technology demonstrators involving static/dynamic loads,

thermal loading, incorporation of sensors and corresponding data

acquisition systems.

REPRESENTATIVE RESEARCH Projects

Additive Manufacture (AM) of Naval Outboard Connectors (2013-2014)

Defined project scope, designed test articles, and procured test articles

from several outside vendors (corresponding to DMLS, EBM, and 3D-

Printing, of three candidate alloys). Successfully compared mechanical

performance comparison of AM techniques as functions of alloys type.

Robotic Skin (2010-2014)

Created 3D models to explore the design space of tactile robotic skin

using FEA simulations resulting in a series of functional skin

prototypes. Designed a series of tests to verify satisfaction of

functional requirements. The resulting prototypes were successfully

demonstrated on a robotic arm, facilitating autonomous obstacle

navigation.

US Naval Railgun (2006-2014)

Based on 3D solid models that I created, in conjunction with

multiphysical computational simulations (FEA), I explored innovative rail

and armature designs and identified weak points. The resulting

modification to the bore containment structure has since performed

flawlessly under high-power operation (7 years as of this writing).

http://www.nrl.navy.mil/media/news-releases/2011/nrl-railgun-group-

receives-award-of-merit-for-group-achievement

Electrospray Self-Assembly (2013-2014)

Developed a modeling and simulation plan for parametric study of the

relative influence of geometric features of an acoustic drop levitator on

node morphology and strength. Demonstrated that the physical simulations

matched empirical observation and could be used as a map for subsequent

experiments (presently underway).

GelMan Human Thoracic Surrogate (2006-2014)

Designed 3D solid models from CT scans of human ears and 3D-printed these

'jigs' for anthropomorphic attachment of military eyewear under

evaluation for blast response.

Precision Micro-Architecture Control of Material Properties (2003-2009)

Designed mechanical tests and test articles, based upon result from my

FEA simulations, which demonstrated mitigation of edge-delamination

failures. Received NRL Alan Berman Research Publication award.

Structure-Power Materials for Unmanned Aerial Vehicles (UAV) (2003-2005)

Adapted thermoelectric generators, liquid-vapor hydrocarbons, and

combustible polymeric solids for use as structural components. Used 3D

modeling to guide design development resulting in the fabrication of a

functional prototype Awarded U.S. Patent No. 8,141,822.

1 HONORS and AWARDS

EIT/FE Certification: A-13079

NRL Alan Berman Research Publication Award (2011)

NRL Award of Merit for Group Achievement, USN Railgun (2011)

U.S. Patent No. 8,141,822 (2012) Autophagous Structure-Power System for

UAVs

2 PROFESSIONAL and HONORARY SOCIETIES

ASME, AIAA, Pi Tau Sigma (National Mechanical Engineering Honor Society),

Pi Mu Epsilon (National Mathematics Honor Society)

. TECHNICAL COMMUNICATION

. 82 Publications and 27 Talks (journals, proceedings, program reviews, and

training services)

. Publication in such journals as Acta Mechanica, Scripta Materialia,

International J Solids and Structures, J Composite Materials, J

Reinforced Plastics and Composites, Composites Part A, Composites Science

and Technology, J Micro and Nano-Manufacturing, J Vibration and

Acoustics.

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