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| ====Reliable Life====
| | #REDIRECT [[Arrhenius_Relationship#Arrhenius-Weibull_Statistical_Properties_Summary]] |
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| For the Arrhenius-Weibull relationship, the reliable life, <math>{{t}_{R}}</math> , of a unit for a specified reliability and starting the mission at age zero is given by:
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| ::<math>{{t}_{R}}=C\cdot {{e}^{\tfrac{B}{V}}}{{\left\{ -\ln \left[ R\left( {{t}_{R}},V \right) \right] \right\}}^{\tfrac{1}{\beta }}}</math>
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| This is the life for which the unit will function successfully with a reliability of <math>R({{t}_{R}})</math> . If <math>R({{t}_{R}})=0.50</math> then <math>{{t}_{R}}=\breve{T}</math>, the median life, or the life by which half of the units will survive.
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