Zac Hoffman Email & Phone Number

Pontiac, Michigan, United States

Pontiac, Michigan, United States

Greater Detroit Area

Lansing, Michigan

•Integrated Product Team structures lead for the PW1200/PW1700 fan blade•Validate major engineering design change via rigorous engine testing including crosswind simulation in support of FAR 33 certification of redesigned hardware-Ensure test engine health, safety, and data integrity with real-time onsite monitoring of dynamic strain gauges and noninterference blade tip measurement systems for major rotating hardware including fan blade, fan hub, and low pressure compressor integrally-bladed rotor-Coordinate with Test & Telemetry engineers and operators to guarantee timely collection of critical data to support aggressive engine certification schedule-Post-process vibratory structural data and assess high cycle fatigue and flutter to internal, customer, and FAA requirements-Make recommendations to internal leadership for strategic decision-making•Construct 3D finite element models of design intent and non-conforming fan blades using ANSYS Mechanical APDL to perform linear and nonlinear finite element simulations•Interpret static and modal vibratory FEM results including frequency/tuning (Campbell Diagram), deflection, and stress for low cycle & high cycle fatigue (Goodman Diagram) analysis of metallic components and adhesive systems•Provided critical on-site structures engineering support of production ramp for Geared Turbofan hybrid metallic fan blades-Aligned production process with design requirements through collaboration with Michigan-based Manufacturing and the main Design Engineering organization in Connecticut-Responded quickly to emergent production issues in a high pressure environment-Dispositioned non-conformances including nick/dent/scratch damage, dimensional variations, peening and burnishing process failures, structural adhesive concerns, and coating damage-Proposed blueprint & spec deviations and support repair development to maximize producibility-Mentored and managed two junior engineers as part of four person on-site structures team

Greater St. Louis Area

Perform wide range of structural analysis duties with little direct guidance.Conduct trade studies, construct FEMs, and generated analysis packages to support aggressive drawing release schedule for prototype vehicle.

Greater St. Louis Area

Designed four mechanism full-scale fatigue tests (FSFT) for new production programCharacterized foreign military customer’s expected airframe durability usage by developing specialized master event spectrum (MES) based on pilot inputCoordinated, advised, and reviewed fatigue analysis performed by off-site engineers

Greater St. Louis Area

Generated spectra and low cycle fatigue (LCF) allowable stresses for new production program using in-house CI software and team-developed Excel/Visual Basic for Applications (VBA) toolsPerformed durability (fatigue, CI) and damage tolerance (fracture mechanics, crack growth (CG)) analyses for on-time delivery to the U.S. Navy customer

Greater St. Louis Area

Generated analysis packages to support compressed drawing release schedule for prototype vehicle

Greater St. Louis Area

Conducted data-based analyses to investigate highly variable fleet characteristics.Composed MATLAB scripts to determine 90th percentile trends and generate sound conclusions from flight data.Documented and communicated analysis results to colleagues and customer.

Greater Atlanta Area

Investigated local buckling instabilities in fiber-reinforced polymer pultruded wide-flange beams. Developed and executed experimental processes to validate faculty advisor’s design equations. Supported research projects for the Georgia Department of Transportation in the areas of bridge rehabilitation.

Greater Atlanta Area

Drafted Structural plans, elevations, sections and detail views using various CAD and BIM programs. Developed Departmental CAD/BIM Standards Specifications and Structural Drawing Catalogue. Created Structural Co-op Training program including a 40-page Training Manual and Tutorial.Coordinated the efforts of the Structural Department with other disciplines to develop final design configuration.

Master’S Degree, Mechanical Engineering, 4.0

Bachelor Of Science, Civil Engineering, 4.0

Activities and Societies: Engineers for a Sustainable World at Georgia Tech, Undergraduate College of Engineering Advisory Council, GT.

Education record

Activities and Societies: Football (Academic All-State), Student Senate, Class President