Failure Mode A failure mode is an event that causes an asset to fail to perform its function. For example, if a pump’s impeller becomes worn, the pump cannot convey liquid at the required rate. When failure mode optimization requires Isograph Availability Workbench, this attribute is mapped to the cause description in AWB. See Also Damage mechanism A damage mechanism is a general cause of problems or failures within process equipment. Examples of damage mechanisms are corrosion under insulation, brittle fracture, thermal fatigue, and heat damage. See Also Abbreviation Abbreviated name of the damage mechanism. See Also Theoretical yearly rate Theoretical rate is the estimated rate of deterioration based on expert opinion, equipment specifications, or historical data. It can differ from the asset design rate based on the analysts’ experience and expectations. See Also Selected yearly rate Degradation rate selected on the failure mode to apply to the failure mode’s indicator. See Also Selected rate Select a degradation rate from the list to calculate the next inspection date. See Also
