Steven Kreuzer
Senior Managing Engineer at Exponent- Claim this Profile
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Bio
Credentials
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Data Scientist with Python
DataCamp -
Python Programmer Track
DataCamp -
Licensed Mechanical Engineer
State of California -
Data Analyst with Python
DataCamp
Experience
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Exponent
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United States
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Business Consulting and Services
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700 & Above Employee
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Senior Managing Engineer
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abr. de 2022 - - actualidad
- Doing everything listed below for 'Managing Engineer' but with a bit more gusto!
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Managing Engineer
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jun. de 2013 - may. de 2022
- Providing insight and solutions to complex problems in a range of industries, from consumer and industrial electronics to medical devices, aerospace, and power generation.- Managing project teams with experts across the breadth of expertise offered by Exponent, including colleagues in materials science (both metals and polymers), biomedical engineering, thermal sciences, and electrical engineering.- Rapid response when time is money, my experience in multiple industries with clients and colleagues across the US and abroad gives me the knowledge base and contacts to get clients solutions regardless of the industry.- Litigation experience, with the ability to perform and communicate complex analysis and colleagues who are testifying experts in every engineering discipline.Example projects:• Combination product implantable medical device mechanical durability testing regime planning and execution, including identification of relevant physiological loads and mapping to a tractable test plan• Predictions of stent in vivo fatigue behavior via simulations of the stent in tissue and custom designed fatigue testing• Design and implement non-standard testing protocols to establish failure modes of consumer electronics assemblies and components • Perform explicit and implicit FEA of consumer electronics assemblies via Abaqus to identify failure modes and assist clients in prototype evaluation and testing interpretation• Design, build, and use robotic assemblies to manufacture fiberglass composite structures to determine the effect of manufacturing variables on fatigue performance• Generate viscoelastic material models for a range of polymer and solder formulations based on testing data for use in assembly simulations• Predict at-risk electrical components in solar industry control boxes subjected to temperature fluctuations and mechanical perturbations• Guide testing using standard methods for determination of material properties
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The University of Texas at Austin
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United States
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Higher Education
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700 & Above Employee
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Protein / Biologics Stability Determination (Doctoral Graduate Work)
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ago. de 2006 - may. de 2013
RESEARCH ACTIVITIES:• Simulated molecular & inter-molecular structure-activity relationships under load via Molecular Dynamics (MD), focusing on the role of enthalpic & entropic forces in maintaining structure via native and non-native interactions;• Determined the structural basis of the intermolecular strength of excipient interactions (PEG, HPMC, MCC, PVP) while accounting for conformational flexibility via MD simulation;• Correlated the kinetics of protein unfolding ‘crack initiation’ with polymer physicochemical properties & functional groups, identifying a 'catch-bond'-like change in the rate constant of unfolding with increasing magnitude of applied forces;• Identified polymer material properties via a coarse-grained statistical population balance framework (Milestoning) with microscopic rate constants derived from MD simulation;• Programmed a custom Matlab / Python / R data mining toolkit for the analysis of terabyte-sized MD data sets, developing and implementing a hierarchical data structure focused on identifying statistical quantities (probability distributions & regressions) and graphical network structures for multi-dimensional pathway determination;• Experimentally assessed the strength of polymer-small molecule bonding (biotin-avidin) via Atomic Force Microscopy;LEADERSHIP, FUNDING, AND OUTREACH:• Mentored 2 Masters students and 3 undergraduate students; collaborated with 2 PhD students• Initiated lab-wide Molecular Dynamics technical capability, including student training and documentation;• Developed experimental Atomic Force Microscopy capability for validation of simulation results• Co-developed and co-wrote 13 NSF and/or NIH grant proposals; 1 funded, 4 recommended for funding, representing over $1.5M in solicited support;• Delivered 5 invited technical seminars, 3 public outreach events, & 13 conference poster presentations;
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Data Acquisition Lab Teaching Assistant
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ago. de 2008 - ago. de 2011
• Courses: Dynamics, Design of Mechanical Elements, Intro to Mechatronics• Lead a group of 5 TAs in new lab design and oversaw lab implementation for ~125 students per semester• Taught introductory circuitry, sensors, and data acquisition for experiments to classes of ~15 sophomores• Commended by students for Overall Instructor Rating: Excellent – 78%, Very Good – 22% • Awarded H. Grady Rylander Teaching Fellowship as top Departmental TA (2009)
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Case Western Reserve University
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United States
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Higher Education
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700 & Above Employee
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Computational Bone Orthopeadic Biomechanics (Undergraduate Researcher)
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oct. de 2004 - may. de 2006
- Modeled variations in the intrinsic permeability of bone micro-structure via computational fluid dynamics to determine the effect of the maintenance of extracellular composition on shear loading of cells.- Developed parametric mesh generation software in Matlab for import of custom meshes to finite element analysis software (ABAQUS) to study viscoelastic effects of physiological loading on tissue engineering strategies for healing large bone defects. - Modeled variations in the intrinsic permeability of bone micro-structure via computational fluid dynamics to determine the effect of the maintenance of extracellular composition on shear loading of cells.- Developed parametric mesh generation software in Matlab for import of custom meshes to finite element analysis software (ABAQUS) to study viscoelastic effects of physiological loading on tissue engineering strategies for healing large bone defects.
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Duke University
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United States
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Higher Education
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700 & Above Employee
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Cartilage Tissue Engineering Assessment (Summer Research Associate)
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jun. de 2004 - ago. de 2004
• Experimentally determined the viscoelastic properties of cartilage cells via Micropipette Aspiration• Evaluated the chondrogenic potential of adipose-derived stem cells via analysis of differentiation biomarkers• Examined the effects of inflammatory cytokines on articular cartilage with experimental cell culture techniques • Experimentally determined the viscoelastic properties of cartilage cells via Micropipette Aspiration• Evaluated the chondrogenic potential of adipose-derived stem cells via analysis of differentiation biomarkers• Examined the effects of inflammatory cytokines on articular cartilage with experimental cell culture techniques
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GE
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United States
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Industrial Machinery Manufacturing
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700 & Above Employee
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Co-Op Engineer
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ene. de 2004 - jun. de 2004
• Facilitated and directed implementation of dishwasher noise attenuation package• Conducted experimental feasibility study on in-line heating technologies for dishwasher line• Coordinated development with international resources in Bangalore, India • Facilitated and directed implementation of dishwasher noise attenuation package• Conducted experimental feasibility study on in-line heating technologies for dishwasher line• Coordinated development with international resources in Bangalore, India
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Education
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2006 - 2013
The University of Texas at Austin
PhD, Mechanical Engineering; Biomechanics -
2001 - 2006
Case Western Reserve University
Bachelor of Science in Engineering, Mechanical Engineering -
1997 - 2001
Amherst High School
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