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10/5/2019 · Exercise Equipment

Exercise Ball Explodes and Injures Professional Athlete

By: Dr. Kenneth H. Brown

One day, while doing his weightlifting routine on the exercise ball in the sauna, the exercise ball exploded, sending Leo onto the ground in an awkward position, with the 200 pound barbell landing on top of his shoulder. Leo’s shoulder was separated and required surgery to repair the damage.

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2/6/2018 · Failure Analysis

An Overview of Safety Factors in the Engineering Design Process

By: Gerald Davis

Many considerations are included in a valid engineering design process. Typically decisions that provide for safe service and expected reliability in the given component or structure are the most critical. Determining the numerical value of an appropriate safety factor (or factor of safety) during design is vital to achieving mechanical or structural integrity.

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9/6/2017 · Failure Analysis

Liquid Impact Glass Failure Analysis

By: Dr. Thomas Read

As "water hammer" (i.e. liquid impact) has the potential to cause glass bottle failure, Read Consulting LLC created two such failures to study the resulting fracture surface details.

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4/23/2015 · Failure Analysis

Weld Failure Analysis: Chair Failure Due to Inadequate Weld

By: Dr. Thomas Read

Read Consulting was asked to determine why a welded chair failed and caused injury to the person sitting in it.

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1/21/2015 · Failure Analysis

Guidelines for Gathering & Preserving Physical Evidence for a Failure Analysis

By: Gerald Davis

It is essential when beginning a root-cause failure analysis involving metallic materials to collect and maintain the as-found physical evidence properly prior to detailed examinations. This has two objectives. In all cases collecting and protecting the evidence in its undisturbed condition provides the best opportunity to derive meaningful good results from the subsequent analyses. Secondly, in a legal proceeding lack of attention to these matters can produce the accusation of spoilation of evidence. As a minimum this will cause presentation problems for the offending party in the suit. At worst such deficiencies by that party may cause the case to be thrown out.

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5/6/2014 · Failure Analysis

Rail Cracking due to Residual Stress from Manufacturing and Heat Treating

By: Dr. T. Kim Parnell

Rail residual stress distributions can be complex and variable in nature, as different manufacturing techniques produce varying stress magnitudes and distributions. To evaluate the effect of residual stresses on rail integrity, an analysis technique was sought that could quantify the effect of these stresses on web crack propagation.

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2/3/2014 · Failure Analysis

Failure Analysis: Manufacturing Engineer Examines the Root Cause of Automobile Rear View Mirror Failures

By: Dr. Thomas Read

The root cause of the failure of customer returns of heated automobile rear view mirrors was investigated.

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12/20/2013 · Failure Analysis

Outboard Boating Engine Accident: Mechanical Failure Analysis

By: Gerald Davis

A severe personal injury incident occurred as a recreational fishing boat was approaching a dock at approximately 20 mph after a day on the water. The large outboard engine (75 HP) on the stern of the boat struck a fixed underwater obstruction, flipped into the boat while still running and amputated the hand of a passenger seated near the engine.

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8/7/2012 · Failure Analysis

Failure Analysis: Metal Fatigue of Automatic Machinery - Wafer Test Station

By: Dr. Thomas Read

During normal operation, the arm on an automatic wafer test station failed. Root cause failure analysis determined that the drive shaft on the right angle gear motor used to raise and lower the manipulator arm had failed first.

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5/21/2012 · Failure Analysis

Failure Analysis: Product Liability & Personal Injury Involving a Broken Grinding Wheel

By: Dr. Thomas L. Read

This grinding wheel was part of a product liability and personnel injury case. It was claimed that the subject wheel had unexpectedly failed (i.e. flown apart) and an escaping piece had hit the plaintiff in the face causing serious injuries. According to the user, the grinder with the wheel was purchased approximately one hour before the grinding wheel failure.

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selected resources

Green Facilities Handbook: Simple and Profitable Strategies for Managers

by Eric A. Woodroof

Deregulatory Takings and the Regulatory Contract: The Competitive Transformation of Network Industries in the United States

by J. Gregory Sidak

The Health Care Providers Guide To Facing The Malpractice Deposition

by Constance G. Uribe