The compression load and relative humidity of the air are assumed to be constants throughout the considered temperature range.
Moreover, the mean cutting force (MCF) and mean peak cutting force (MPCF) increase and tend to be constants with the increase of rock brittleness and cutting depth.
In this study, the transition from fire to explosion is not considered and all the environmental factors are assumed to be constants in the simulation.
The parameters l and s are sometimes considered to be constants in the complexity analysis, but for high rate Reed Solomon codes, their values can be very large.
Afterwards, they are further specified to be constants in single-layer homogeneous shells and to obey an identical exponent-law in FG shells.
The inhomogeneity of the interphase is represented by the graded feature of the Young's modulus varying according to a power law or a linear one in the radius direction, while the Poisson's ratio and thermal expansion coefficient are assumed to be constants.
