Failure analysis is one of the ways through which a sense of understanding can be achieved of why the component, system, or material has failed to perform its intended task. Organizations use it to correct product defects, increase reliability, and prevent repeated failures. A failure analysis report is aimed at documenting the failure event as fully as possible, evaluating contributing factors, and making appropriate recommendations for correction or design improvement.
Instrumentation
The report begins with data collection, which gathers failure history, maintenance records, and operational records to create a general background of failure. This would be followed by a visual inspection, where the failed component shows signs of damage, corrosion, or wear. More developed techniques include non-destructive testing that may include X-rays and ultrasonic testing, among others, to check for defects within the failed component without causing further damage to the component. Other means of examining the fracture surfaces include fractography and microscopy to establish failure modes that may be fatigue or brittle fractures. In some analyses, chemical means can identify contamination or degradation in a material. Strengthen
Failure analysis reports provide a comprehensive analysis of the cause of failure so companies can make the right choices on what not to repeat. The structured approach ensures a complete examination of every aspect, including environmental influences, material properties, and operating conditions. This results in better product design, improved safety, and cost savings through the elimination of future failures.
Limitations
Although the failure analysis is comprehensive, it also has its limitations. It takes up time and money in case of complicated testing and usage of costly tools. Sometimes, it becomes impossible to determine the root cause of the failure precisely due to the partial destruction of the evidence of failure. Moreover, the results of failure are a local phenomenon and not generalizable.
