Forensic Engineers and Consultants

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Injury Involving Packaging Machinery

From time to time, I and other engineers here at Warren are asked to evaluate a case involving an injury that has been caused by machinery designed to produce or fill packaging. The hazards associated with packaging machinery are often similar to other commonly-used industrial machinery, but packaging machinery has its own voluntary consensus standard for machine safety. Read More

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Night Driving: Are you overdriving your headlights?

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When we are driving at night, we don’t have the benefit of the sun illuminating our way. We do have headlights but this video will show you that under many conditions your headlights will not help you see obstacles soon enough to let you avoid them.   Read More

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JOIN US FOR OUR FIRST ANNUAL PACK TO FEED EVENT

Warren is hosting its First Annual Pack 2 Feed Event, May 25, 2017.  Help us make it a success by making a donation to Harvest Hope to feed families across the state!  More than 3,000 boxes are needed monthly at a cost of $10 per box. Each box makes 21 meals, enough to feed a person for a week.

Please consider donating to Harvest Hope through Warren’s Pack to Feed Event.

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Post Categories: Events
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Evolution of Narrow-Aisle Stock Picker Forklifts

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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

Figure 2: A view of some of the undersize anchors used to secure the capstan winch. The anchors at the upper right failed by pulling out of the concrete slab. The one at the lower left failed by bending and pulling out.

Injury Involving a Capstan Winch

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Co-Authored with Jeff Warren, PE   

A capstan winch uses a mechanically powered rotating cylinder, called a capstan, to apply pulling force through a rope. When the rope is looped around the rotating capstan and tightened, friction between the rope and capstan allows the winch to apply force to pull a load. A typical capstan winch is shown in Figure 1 below. Read More

A close-up view of the steel column.

Timber – Falling Beam Strikes Worker

As an experienced safety consultant, I have investigated many serious injuries and deaths at construction sites over the past 39 years. The United States Department of Labor reports that the fatal injury rate for the construction industry is highest of all industries in the nation. Out of 4,386 worker fatalities in private industry in calendar year 2014, 899 or 20.5% were in construction i.e., one in five worker deaths were in construction. Read More

Warren Forensics Team members and their guests celebrating Warren's 20th Anniversary, in Charleston, SC, January 27, 2017.

Warren Forensics Celebrates 20 Year Anniversary

It makes me proud as the founder of Warren Forensics to announce that we have crossed another milestone in the history of our company. On February 1, 2017, we will have been in business for twenty years. I am particularly proud of our team of professional engineers and consultants who have worked on your forensic engineering cases and communicated, with authority, fact-based opinions you could trust. Read More

Figure 1:  A view of the improperly constructed fireplace alleged to have caused the subject fire. 
 The hearth extension has been largely consumed in the fire.

Improper Fireplace Construction: Testing the Impact of Non-Compliant Clearance to Combustibles

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As the weather turns cold, many people use fireplaces to provide supplemental heat. The warmth from a fireplace is a comfort and the aesthetics of a glowing fire are a pleasure.  However, there is nothing pleasurable about a residential house fire that results from an improperly built or used fireplace or chimney. Read More

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Post-Fire Inspection of Steel, Concrete, Masonry and Wood – Tips for an Insurance Adjuster, Part 2

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This is the second part of a 3-Part series to help insurance adjusters during a claim inspection to make a post-fire assessment of a building’s structural framing system.  Part 2 investigates and assesses the future use of common post fire structural framing elements such as steel, concrete, masonry and wood.  These more common structural elements take on different and specific characteristics when they are exposed to a fire.  It’s important for the adjuster to make reasonable, cost saving assessments on what remains, what is to be repaired, what gets demolished and what gets replaced. Read More

A clevis pin with the spring clip attached.

Defective Clevis Pin Culprit in Runaway Trailer

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A large agricultural trailer had been connected to a truck using a clevis pin with a spring locking clip.  The trailer became disconnected from the truck and collided with an oncoming vehicle.  The trailer was in poor condition, did not have safety chains, and had substantial recent modifications by the owner. Read More

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