# S2E55 Greg Trees | FEA, EHD, and Other Useful Engineering Acronyms

- Show: [Being an Engineer](https://hardwarepodcasts.com/podcast/being-an-engineer)
- Published: 2021-12-31
- Length: 46m
- Episode: 55
- Page: https://hardwarepodcasts.com/podcast/being-an-engineer/2021-12-31-s2e55-greg-trees-fea-ehd-and-other-useful-engineering-acronyms
- Listen: https://teampipeline.us/greg-trees-fea-and-ehd/

## Summary

Greg Trees, a mechanical design engineer with nearly 30 years of experience in medical devices and railroad instrumentation, discusses the practical application of Finite Element Analysis (FEA) and Electrohydrodynamics (EHD). He explains how FEA serves as a critical validation tool against physical testing, detailing the nuances of linear versus nonlinear material modeling and the common pitfalls of boundary conditions. Trees also describes his work at Battelle on EHD for drug delivery aerosols and offers career advice on structured problem-solving and risk management for engineers.

## Chapters

- [0:00](https://hardwarepodcasts.com/podcast/being-an-engineer/2021-12-31-s2e55-greg-trees-fea-ehd-and-other-useful-engineering-acronyms#t=0) Introduction and Career Origins
- [3:53](https://hardwarepodcasts.com/podcast/being-an-engineer/2021-12-31-s2e55-greg-trees-fea-ehd-and-other-useful-engineering-acronyms#t=233) FEA Fundamentals and Cloud Computing
- [7:10](https://hardwarepodcasts.com/podcast/being-an-engineer/2021-12-31-s2e55-greg-trees-fea-ehd-and-other-useful-engineering-acronyms#t=430) Validating FEA Against Physical Testing
- [9:26](https://hardwarepodcasts.com/podcast/being-an-engineer/2021-12-31-s2e55-greg-trees-fea-ehd-and-other-useful-engineering-acronyms#t=566) Linear vs. Nonlinear Material Models
- [15:39](https://hardwarepodcasts.com/podcast/being-an-engineer/2021-12-31-s2e55-greg-trees-fea-ehd-and-other-useful-engineering-acronyms#t=939) FEA Pitfalls: Boundary Conditions and Loads
- [24:55](https://hardwarepodcasts.com/podcast/being-an-engineer/2021-12-31-s2e55-greg-trees-fea-ehd-and-other-useful-engineering-acronyms#t=1495) Electrohydrodynamics (EHD) for Drug Delivery
- [28:01](https://hardwarepodcasts.com/podcast/being-an-engineer/2021-12-31-s2e55-greg-trees-fea-ehd-and-other-useful-engineering-acronyms#t=1681) Challenges in Vessel Sealer Development
- [29:17](https://hardwarepodcasts.com/podcast/being-an-engineer/2021-12-31-s2e55-greg-trees-fea-ehd-and-other-useful-engineering-acronyms#t=1757) Career Advice and Structured Problem Solving
- [34:29](https://hardwarepodcasts.com/podcast/being-an-engineer/2021-12-31-s2e55-greg-trees-fea-ehd-and-other-useful-engineering-acronyms#t=2069) Prototyping Vendors and Continuous Learning
- [37:32](https://hardwarepodcasts.com/podcast/being-an-engineer/2021-12-31-s2e55-greg-trees-fea-ehd-and-other-useful-engineering-acronyms#t=2252) The Reality of Product Development Timelines
- [40:34](https://hardwarepodcasts.com/podcast/being-an-engineer/2021-12-31-s2e55-greg-trees-fea-ehd-and-other-useful-engineering-acronyms#t=2434) Overcoming Failure and Team Resilience

## Topics

- [Mechanical engineering](https://hardwarepodcasts.com/topic/mechanical-engineering)
- [Careers & education](https://hardwarepodcasts.com/topic/engineering-careers-and-education)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)
- [Debugging & failure analysis](https://hardwarepodcasts.com/topic/debugging-and-failure-analysis)

## Most relevant to

established companies

## Mentioned

- Battelle (company)
- McMaster Carr (company)
- Proto Labs (company)
- SolidWorks (tool)
- Amazon Web Services (company)

## Related episodes from other shows

- [An Interview with Matt Berggren](https://hardwarepodcasts.com/podcast/the-amp-hour/2019-12-16-an-interview-with-matt-berggren) (The Amp Hour)
- [An Interview with Steve Kreuzer](https://hardwarepodcasts.com/podcast/the-amp-hour/2018-07-16-an-interview-with-steve-kreuzer) (The Amp Hour)
- [305: Humans Have a Terrible Spec Sheet (Repeat)](https://hardwarepodcasts.com/podcast/embedded-fm/2022-04-28-305-humans-have-a-terrible-spec-sheet-repeat) (Embedded.fm)
- [199 - How Modeling Can Cut in Half for Combination Products, V&V 40, and Cutting Dev Time with Mark Burchnall](https://hardwarepodcasts.com/podcast/lets-combinate/2025-07-30-199-how-modeling-can-cut-in-half-for-combination-products-v-v-40-and-cutting-dev) (Let's Combinate)
- [Siloed Engineering with Leigh Brady](https://hardwarepodcasts.com/podcast/the-amp-hour/2022-05-09-siloed-engineering-with-leigh-brady) (The Amp Hour)

## Citing this page

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