Template:Ipl ex reliable life

Reliable Life
For the IPL-exponential model, the reliable life or the mission duration for a desired reliability goal, $${{t}_{R}},$$  is given by:


 * $$R({{t}_{R}},V)={{e}^{-K{{V}^{n}}{{t}_{R}}}}$$


 * $$\ln [R({{t}_{R}},V)]=-K{{V}^{n}}{{t}_{R}}$$

or:


 * $${{t}_{R}}=-\frac{1}{K{{V}^{n}}}\ln [R({{t}_{R}},V)]$$