Case Studies: Case Studies – Failure Analysis

Raw Material Specification Changes Resolve Problem with Cured Silicone

Silicone elastomers, foams, coatings, and adhesives are widely used in virtually all aspects of manufacturing, in construction, the automotive industry, and medical and personal care products. The properties that contribute to making silicones indispensable in many applications, such as their ability to repel water, their excellent heat stability and chemical resistance, are also responsible for ...
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PVC Pipe Failure Results from Improper Installation

Polyvinylchloride (PVC) is one of the most widely produced plastics in the world and accounts for approximately 70% of new buried water distribution and sanitary sewer pipes being installed in the U.S. and Canada today. With so much more PVC in use today, there are more situations in which pipes can fail. Whether caused by ...
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Failure Analysis Determines Faulty Workmanship to be Cause of Defective Building Materials

RJ Lee Group's petrographic scientists used in-house laboratory capabilities to prove that poor workmanship—rather than faulty materials—was the cause of delamination and cracking in stucco used in a residential construction project.
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Outsourced Component Did Not Contribute to Medical Device Implant Failure

When the manufacturer of a medical device implant saw an increase in the device’s failure rate after implant, they alleged that a component provided by a supplier was responsible.
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Did a Cracked Pipe Cause a Landslide?

RJ Lee Group was retained to investigate the role that a failed municipal water pipe played in a landslide that resulted in environmental concerns. After performing a comprehensive investigation, our experts determined that the pipe failed as a result of the landslide rather than the pipe failure causing the landslide.
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Delamination Problem Requires Multi-Layered Approach

RJ Lee Group investigated the cause of the delamination of acoustic fireproofing attached to steel beams in public facilities. After thoroughly investigating samples from many locations, we identified the material issues and recommended remediation solutions as well as modifications to future product applications.
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Product Failure Analysis: Consumer Product Affected by Inappropriate Raw Material

When homeowners issued complaints about staining on roofing shingles, the manufacturer took action. Through a full-scale forensic investigation, RJ Lee Group determined the source of failure and maintained the client's reputation.
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Establishing the WTC Dust Signature: Managing Post 9/11 Environmental and Damage Assessments

RJ Lee Group served as the lead scientific management team, collecting and processing more than 100,000 samples over a three-year period — the most comprehensive environmental impact study ever performed in Class-A building structures.
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Exemplar Comparison Eliminates Aircraft Engine as Cause of Fatal Accident

In an effort to determine if mechanical failure may have contributed to the cause of a fatal airplane crash, an airplane engine manufacturer retained RJ Lee Group to examine components of the 30-year old engine involved in the accident.
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Experts Distinguish Corrosive Property Damage from Normal Deterioration

When 60 tons of chlorine gas were released in a catastrophic event, RJ Lee Group was called in to assess more than 360 property locations and 500 vehicles. Our expert testimony ultimately helped to refute unsubstantiated damage claims in the surrounding area.
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Failure Analysis Investigation Points to QC Solution to Maintain Profits and Customers

Shatter-prone glass syringes pose any number of risks — to patients and health care workers — and costly, potentially dangerous waste. One well-known medical device manufacturer wanted reliable data on why syringes from an overseas manufacturer would shatter upon loading.
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Analyses Reveal Viaduct Concrete Failure Not Consistent

RJ Lee Group was retained to provide information on the current state of the concrete, failure analysis, and an estimation of service life for a viaduct on a main north-south highway that handled approximately 75,000 vehicles a day.
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