Background and terminology
Evaluation of industrial aging, elements of methodology
Article REF: SE2080 V1
Background and terminology
Evaluation of industrial aging, elements of methodology

Authors : André LANNOY, Henri PROCACCIA

Publication date: April 10, 2009, Review date: March 1, 2015 | Lire en français

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1. Background and terminology

1.1 Definition of aging

There are many possible definitions of aging.

We retain the proposed definition by the Nuclear Energy Agency and adopted by the Electric Power Research Institute (EPRI): the process by which the characteristics of a system, structure or component (SSC) gradually change with time or use.

In the rest of the text, we also use the terminology in the following box, taken from the same reference.

EPRI terminology 16

Failure analysis: systematic process for determining and documenting the mechanisms and surface and root causes of SSC failure.

Service conditions: actual...

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