Forensic Engineers and Consultants

Blog Posts by: Roger Davis

Author Roger Davis

Roger_Davis_WEB

Expertise Includes:

  • Engine Failures
  • Heavy Equipment Fires
  • Industrial Accident Reconstruction
  • Machine Safeguarding
  • Water and Sewer Utilities
nail gun

Should I Trust My Nail Gun?

Author

Can you imagine framing a house with the tools of our forefathers, using hand saws and hammers, rather than power saws and pneumatic nail guns? Power tools have made the job much easier and faster, that even the amateur is well equipped for this kind of work. Read More

stock-picker-forklift

Evolution of Narrow-Aisle Stock Picker Forklifts

Author

As the cost of warehousing has increased over time, material handling equipment has evolved to allow higher density storage capacities. Narrow aisle and order picker forklifts are among the innovations that have evolved over the past 50 years to accommodate this trend. Read More

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Are You Prepared for Emergencies? Your Generator Set Should Be!

Author

Emergency generators are often called into service during catastrophic events like hurricanes, floods, tornadoes or fires, but also during more mundane events like thunderstorms and other things that may temporarily interrupt the public power grid. Can you rely on your generator to perform at those critical times? Read More

Corrosion on treated wood deck.

Why Should I be Concerned About Galvanic Corrosion?

Author

It is fairly common knowledge that the use of dissimilar metals in plumbing systems can quickly result in a leak due to a corroded pipe or fitting. Read More

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Uninvited House Guests: Mold and Other Fungal Growths

Author

The wet, relatively warm weather recently experienced in the southeast has caused a high incidence of mold and other fungal growth complaints in homes and other structures.  Engineers at Warren Group are often called upon to investigate the cause(s) of these problems. Read More

Fractured Fitting

A pipe burst in a heated building: FREEZE Damage??

Author

Have you ever wondered about the cause of a ruptured pipe inside a structure in the dead of winter, and been puzzled because the pipe burst occurred in a heated area? It may seem counter-intuitive, but the cause may have been due to frozen piping. Read More

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Workers Compensation Subrogation Potential: Top 4 Data Needs for Experts

Author

Oftentimes, an insurance adjuster may suspect that the potential exists for a workers compensation claim to be subrogated, but would like a second opinion from an expert before launching a full-blown investigation; alternately, the adjuster may hold the opinion that the subrogation potential is not great, but would like a second opinion for confirmation of his view. Read More

A power buggy fitted with an outrigger for tip-over testing.

Injury on Power Buggy

Author

When an operator is thrown from a ride-on vehicle when it tips over, such as a mud buggy, serious injury or death can result. In one such case I investigated, the issue centered on the maintenance of the vehicle, specifically whether a maladjusted hydrostatic drive caused the braking mechanism to malfunction. Read More

One of the fractured Grade 5 bolts used to secure a concrete truck mixer drum to a drive flange.

Bolted Connection Failures

Author

One of the most common features of machinery, consumer products, and assemblies of any type is the bolted joint. Sometimes the joint fails, with results ranging from inconsequential to catastrophic. The design of a joint is in the purview of an engineer, who must consider the material to be joined, the geometry of the joint, the loads imposed on the joint, the strength of the connectors (i.e., bolts, screws) environmental effects (i.e., temperatures, corrosion) and perhaps other factors. Read More

A view of the primary air inlet on one brand of firelog.

Firelog Maintenance: Tips to Keep Your Home Soot Free

Author

If you have ever experienced it, you know that sooting from a fireplace can cause unsightly damage throughout a home. In some cases, sooting from gas firelogs is caused by improper placement of the logs, such that flame impinges on the artificial log. When heated, the “log” will give off soot, so placement of the logs is important. Some manufacturers provide locating pins for the logs to rest on, so that proper placement is easier to achieve. Read More

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