A stochastic model for burn-in procedures in accelerated environment

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Burn-in procedure is a manufacturing technique that is intended to eliminate early failures of system or product. Burning-in a component or system means to subject it to a period of use prior to being used in field. Generally, burn-in is considered expensive and so the length of burn-in is typically limited. Thus, burn-in is most often accomplished in an accelerated environment in order to shorten the burn-in process. A new failure rate model for an accelerated burn-in procedure, which incorporates the accelerated ageing process induced by the accelerated environmental stress, is proposed. Under a more general assumption on the shape of failure rate function of products, which includes the traditional bathtub-shaped failure rate function as a special case, upper bounds for optimal burn-in time will be derived. A numerical example will also be given for illustration.

Original languageEnglish
Pages (from-to)226-234
Number of pages9
JournalNaval Research Logistics
Issue number3
StatePublished - Apr 2006


  • Accelerated burn-in procedure
  • Accelerated life tests
  • Bathtub-shaped failure rate function
  • Eventually increasing failure rate function
  • Optimal burn-in time
  • Upper bound


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