Failure investigation and risks management

Investigation and root cause analysis of defects, failures, corrosions, ruptures and fractures

IS IT A FAILURE?

Our team of experts, audit and investigate a failure and its underlying cause. This is to reveal the unknown to proffer a corrective action.

Failure might be any of the following:

  • Hard or Catastrophic failure: The unit fails and requires repair or replacement before the system resumes operation.
  • Soft failures: The unit ceases to operate under some set of conditions and when those conditions are removed the system resumes operation.
  • Degraded performance: The function of the system is impaired due to a failure that impacts a portion of the system and does not shut down the entire system.
  • Drift failures: The system slowly approaches and crosses a failure threshold and is restored with calibration, restart, or reset.

Our Proficiency

When the metal failure analysis is completed, customers receive a comprehensive Failure Analysis Report with all findings from the investigation. This Report may include recommended actions to be taken with similar parts or materials to prevent a recurrence in the future, as well as the following:

  • Description of the failed component
  • Conditions at the time of failure
  • Background service history
  • Mechanical and metallurgical data about the failed part
  • Evaluation of the material quality
  • Discussion of mechanisms that explain the root cause of the failure

These failures may include:

  • Design defects.
  • Manufacturing defects due to material or process deviation
  • Inappropriate testing of manufacturing process or products
  • Secondary failures resulting from the failure of another component called the instigator.
  • Intermittent failure which occurs under specific conditions only.
  • Transient failures.
  • Wear-out failure due to material degradation over time.
  • Failures of unknown origin. Here we work on revealing the unknown.

Our investigation approach includes:

  • Failure investigation with a thorough review of background events leading to failure
  • Testing & Inspection, including appropriate materials testing, non-destructive testing or dimensional inspection performed on the failed metal material
  • Analysis of Test Results by materials engineers
  • Failure Analysis Report complete with all findings and any recommendations for prevention of future failures or action to be taken with similar parts
  • Assistance with Expert Witness needs

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