Reliability of many stochastic systems depends on uncertain stress and strength patterns that are time dependent. In industrial development it is essential to improve product reliability. In certain situations and with certain types of equipments time to failure may be a quantity of interest. System failure occurs due to certain types of stress acting on them. Stress and Strength are varying in many real life situations. In this article reliability analysis of time dependent stress strength system is carried out by considering each of stress variables are random fixed and strength variables are random independent. Here stress follows mixture of exponential distribution and strength follows exponential distribution. Using MLE the system reliability was calculated.
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