This working paper presents a first-principles investigation into the physical origin of statically admissible granular bodies. Classical statics describes the equilibrium of mechanically connected bodies but generally assumes their existence. The present work addresses the preceding physical problem of how a mechanically connected granular body emerges from discrete particles under gravity. The proposed framework interprets granular body formation as a process of recursive structural organization. Following each incremental particle deposition, the granular system reorganizes until local static equilibrium has been re-established simultaneously at every load-transmitting particle. The resulting mechanically connected granular skeleton constitutes the physical prerequisite for the subsequent application of classical statics. The framework further introduces the concepts of supporting coupling and Structural Closure as successive stages in the recursive formation of statically admissible granular bodies. Self-similar growth and the emergence of the conical granular heap are interpreted as macroscopic consequences of this organization process. This manuscript is intentionally released through Zenodo as a first-principles working paper in order to document the current conceptual state of the proposed physical framework in a permanent, citable, and openly accessible form. Mathematical formulation, quantitative derivation, numerical implementation, and experimental verification are subjects of subsequent investigations.
Manfred Wittig (Sat,) studied this question.