Optimal step-stress testing for progressively Type-I censored data from exponential distribution

In this paper, a k-step-stress accelerated life-testing is considered with an equal step duration τ. For small to moderate sample sizes, a practical modification is made to the model previously considered by Gouno et al. [2004. Optimal step-stress test under progressive Type-I censoring. IEEE Trans. Reliability 53, 383–393] in order to guarantee a feasible k-step-stress test under progressive Type-I censoring, and the optimal τ is determined …