This Material is available on FlippedNormal Store:
https://flippednormals.com/creator/fede23/
The creation Flow of Skeleton Pile Material should be divided in two different workflow, the Height and the Color creation. From which I also obtained the Normal, Ambient Occlusion, Curvature and Roughness Maps.
Skeleton Pile Material semplify the Skeleton Pile creation with easy customizable Parameters inside of both Substance Designer and Substance Painter.