“…Some others studied more complex arrangements of components such as in a non-series system (Kim and Kuo, 2009) or when multiple failure modes are present (Cha and Finkelstein, 2015; Xiang et al , 2013). There are also studies that estimate reliability based either on the underlying physics-of-failure (White, 2008; Cook et al , 2019) or on degradation properties (Cha, 2006a; Tsai et al , 2011; Xiang et al , 2016; Yu et al , 2018) which are subsequently used to obtain burn-in strategies (Kurz et al , 2017; Lyu et al , 2019).…”