Read Consulting was asked to determine why a welded chair failed and caused injury to the person sitting in it.
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.
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.
Many companies struggle with running their in-house laboratories due to the high fixed costs associated with them. The problem often originates because many company's testing project needs vary over time both in size and importance but the lab itself has large fixed costs regardless of usage. Lab outsourcing is when all or certain testing and analysis functions are done through an independent laboratory instead of being done in-house. This can be done in a variety of areas from R&D, failure analysis, competitive product analysis, to patient litigation support services.
Washing machine failures can create significant damage, exposing insurers and their clients to property damage. These failures often involve a high volume of water and can occur without warning. Through the examination of several hundred washing machines, the DONAN Component Testing Laboratory has identified a statistically significant failure trend in General Electric (GE) washing machines. The amount of water supplied to the tub of the washing machine is controlled by a water valve (solenoid-controlled valve) and pneumatic controls. The washing machine's load selector is a pneumatic pressure switch, which activates and deactivates the water valve.
The root cause of the failure of customer returns of heated automobile rear view mirrors was investigated.
Failure analysis reports are usually created when companies suffer from a manufacturing or product failure and do not know what the cause of the problem or how to fix it.
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.
The definition of quality control testing, also called QC testing, is a process in which a variety of factors that deal with a products production, packaging, and shipping are reviewed in order to find potential problems for product failure and put solutions in place to prevent or solve any issues that are determined.
A cracked XXXXX polymer filament die plate was received for analysis to determine the cause of cracking. Results indicate the die plate cracked as a result of a brittle nitrided case and an insufficient cross-sectional area of the narrow ligament between the cap screw hole and the heater cartridge hole on the inlet face.