Fracture
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Developed and validated the cohesive zone methodology for
modeling fracture. Focused on interfacial and bulk fracture in brittle,
ductile, and rate-dependent material systems subjected to static and dynamic
loading environments. Collaborating with experimentalists to model
specimen geometries and determine the applicability of numerical methods
for modeling fracture in full-scale components.
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Welding
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Lead analyst for a resistance welding effort. Developing a validated
3-D electrical-thermal-mechanical predictive capability to accurately simulate
temperatures, distortion, and residual stresses due to the gas transfer
system (GTS) resistance welding processes.
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Composites
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Thesis work focused on titanium metal-matrix composites. Predicted
the effects of environmental degradation, material inelasticity, and evolving
damage on specimen life. While at Sikorsky Aircraft, I fabricated
composite test specimens, constructed dynamic wind tunnel models, and built
UAV flight vehicles.
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Airframe
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Employed various methods for the justification of ultimate, fatigue, and damage tolerance requirements for Boeing Commercial aircraft. Discovered the advantages and limitations of semi-monocoque metal construction through examination of full-scale testing, production processes, maintenance practices, and service history. |
Sandia National Laboratories (Livermore, CA)
Senior Member of Technical Staff
August ‘99 - Present
Sandia National Labs (Albuquerque, NM)
Ph.D. Student Intern
October ‘98 – July ‘99
Boeing Commercial Aircraft Group (Seattle, WA)
Structural Engineer
December ‘96 – September ‘98
Center for Mechanics of Composites at Texas A&M
Graduate Assistant Researcher
Spring ‘95 – Fall ‘96
Sikorsky Aircraft – Composite R&D (Stratford, CT)
Composite Technician
Fall ‘92, Summer ‘93 – Fall ‘93
HONORS AND ACTIVITIES |
HARDWARE / SOFTWARE |
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