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Engineer Expert Witness Services

Steve Roensch is in his third decade of engineer expert witness service. He has testified in court and arbitration hearings, given deposition testimony and supplied legal team technical support. He has served as an expert witness on injury, death, loss and patent cases involving engineering product design and manufacturing defects. Steve has performed both defendant and plaintiff investigations, and has served as a product liability expert witness and as a personal injury expert witness.

Steve investigates product failures and accidents from a fundamental engineering perspective. He specializes in determining if the product design meets applicable standards and is sufficient to survive. He documents his efforts thoroughly from the start, for concise presentation to the legal team, other experts and the jury. Complex engineering principles are explained using everyday concepts that everyone can understand. Color stress plots and animations are used whenever possible to convey complicated engineering results in an easy to understand visual format.

For example, Steve has served as an expert witness on ROV (Recreational Off-highway Vehicle) cases. Other terms used for an ROV are UTV (Utility Task Vehicle), SSV or SxS (Side-by-Side Vehicle), or even ATV (All Terrain Vehicle). These vehicles require special consideration of design, stability and modes of injury.

Engineering Consulting Services

Steve Roensch has four decades of professional experience. He has analyzed hundreds of product designs and worked on a wide range of products, from medical devices to marine engines, rock crushers to aircraft, farm equipment to the International Space Station.

Steve specializes in stress analysis, finite element analysis, fatigue analysis and design optimization.

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About Roensch & Associates

After enjoying teaching engineering classes in graduate school, Steve joined IBM Research & Development. Shortly after founding Roensch & Associates in 1988, he was asked to serve as an expert witness.

Steve’s workload is a combination of consulting on product designs and serving as an expert on injury, death, loss and patent cases.

Meet Steve Roensch

Engineer Expert Witness
& Engineering Consultant

Hello, I’m Steve Roensch. I am an engineering expert witness with many decades of professional experience. Simply put, if a loss, injury or death is due to something bending or breaking, I can help explain the failure.

My work pinpoints the areas of concern to nail down the why’s and how’s of a failure and identify the responsible party, be it designer, manufacturer or end user. I explain engineering principles using everyday concepts that everyone can understand. You can be assured that I personally will conduct the investigation and provide deposition and courtroom testimony.

I am also an active engineering consultant, not a “hired gun” expert. I do this work for a living and I know what I’m talking about.

If you have a loss due to something bending or breaking, or an engineering analysis need, please give me a call to discuss how I might be able to assist you.  Thank you.

Engineer Expert Witness & Engineering Consultant Steve Roensch

Representative Engineering Consulting Clients

engineering consulting clients

ABB Robotics
Abrams Airborne
Advanced Machine & Tool
Bartell Machinery Systems
Bison Engineering
Brooks Stevens Design
Deere & Company
DeltaHawk Engines
Dynamic Fan
Eaton Corporation
Erie Manufacturing
Falk Corporation
Flanders Electric
Fort James
G.E. Medical Systems
Giddings & Lewis
Hoyer Lifts
IBM Corporation
International Harvester
J.E.I. Metallurgical
J.I. Case
Joerns Healthcare
Johnson Controls
Kohler Engines
Kohler Plumbing
Maynard Steel Casting
McCloskey International
Mercury Marine
Metso Minerals
Milwaukee Metal Products
Oshkosh Truck
Osmonics Autotrol
Rockwell Automation
Simon Aerials
Sunrise Medical
Terex Cranes
Trak International
Wyco Tool

Representative Engineering Consulting Projects

Space Station Components
Wind Turbines
Aircraft Engine Pistons
Aircraft Engine Cylinders
Aircraft Engine Crankshafts
Airliner Components
Airliner Manufacturing Equipment
Marine Outboard Crankshafts
Marine Outboard Castings
Marine Outboard Cowlings
Marine Inboard Manifolds
River Barge Equipment
Steel Bollard Barriers
Concrete Blast Walls
Industrial Robots
Robot Gantries
Oil Field Equipment
Fuel Plant Piping
Hydraulic Motors
Electric Motors
High-Speed Winding Equipment
Boiler Components
Generator Enclosures
Automotive Radiators
Automotive Mirror Housings
Automotive Battery Housings
Automotive Steering Components
Automotive Drive Components
Automotive Seating
Crash & Rescue Vehicles
Recreational Vehicles
Commercial Trucks
Truck Racks
Semi Trailers
Grain Trailers
Motorcycle Frames
Motorcycle Axles
Agricultural Vehicles
Earth Moving Equipment
Industrial Forklifts
Rough Terrain Forklifts
Jaw Crushers
Cone Crushers
Rock Crusher Castings
Rock Crusher Shafts
Rock Crusher Jaws
Rock Crusher Toggles
Vibrating Gravel Screens
Gravel Conveyors
Transmission Housings
Transmission Gears
Chain Links
Man Lifts
Medical Diagnostic Equipment
Medical Beds
Medical Lifts
Medical Forceps
Athletic Braces
Computer Disk Drives
Disk Drive Heads
Disk Drive Suspensions
HVAC Manifolds
Pneumatic Cartridges
Foundry Ovens
Food Processing Equipment
Ground Beef Extruders
Cooking Platens
High-Precision Machining Equipment
Concrete Vibrators
Plumbing Products
Commercial Windows
Distiller Housings
Plastic Gears



Fox Crossing, Wisconsin USA

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