Forensic Engineers and Consultants

Archive: Marine Liability Analysis

Stress Corrosion Cracking of Stainless Steel in Marine Environments

Stress corrosion cracking involves the slow growth of small, often microscopic, cracks through a metal part in a corrosive environment.  The cracking can continue to the point that the part fails suddenly and unexpectedly even though it still appears new and in good condition.

My first experience with stress corrosion cracking happened in the Charleston harbor when the stainless steel rudder suddenly separated from a sailboat during moderate winds. What had been a pleasant evening sail turned instantly into being in a difficult to control boat in the middle of the busy shipping channel. The rudder remained attached only Read More

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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

Gas Cylinder Leaks: What’s that Odor? Get out quick!

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Pressurized cylinders filled with various gases are very common, from the propane fuel tank under your barbeque grill to acetylene for welding to fluorine for production of many common products.  A leak from almost any of these can cause damage or significant losses, from a fire to physical injury, or asphyxiation.

Owner protection against losses and injury can range from nothing to significant, such as storage in ventilated closets or gas detection alarms. In one case the regulator valve on a small CO2 cylinder used in a bar to pressurize beer kegs broke off. The cylinder rocketed around the bar room, causing at least one serious injury. Read More

Engineering Determines Cause in Cargo Loss Dispute

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Losses can be contentious — especially when two parties believe the other is at fault. In these cases, engineering principles and third-party objectivity can reveal how and why an incident occurred and who bears responsibility.

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