OBJECTIVES This study aims to assess the correlation of CT-based structural rigidity analysis with mechanically determined axial rigidity in normal and metabolically diseased rat bone. METHODS A total of 30 rats were divided equally into normal, ovariectomized, and partially nephrectomized groups. Cortical and trabecular bone segments from each animal underwent micro-CT to assess their averag...

The buckling mechanism of diagonally stiffened plates under the combined action shear, bending, and compression is a complex phenomenon that difficult to describe with simple clear explicit expressions. Predicting elastic coefficient accurately crucial for calculating load these plates. Several factors influence plates, including plate’s aspect ratio, stiffener’s flexural torsional rigidity, in...

Abstract In continuum mechanics, viscous materials are those that lack rigidity and elastic response under shear stress. We argue using the term to refer aseismic lithosphere is thus a misnomer because it denies propagation of S waves through in total contradiction decades seismic surveys. Similarly, yield stress, which another feature expected most situations within but more difficult assess. ...

A bstract supersolid is a system that presents long-range order and shear rigidity as solid but which also supports non-dissipative superflow superfluid. From an effective perspective, supersolids are identified with phases of matter break spontaneously translational invariance together global U(1) symmetry. By using this symmetry prescription, we build holographic bottom-up model for start the...

Abstract Disordered spring networks can exhibit rigidity transitions, due to either the removal of material in over-constrained or application strain under-constrained ones. While an effective medium theory (EMT) exists for former, there is none latter. We, therefore, formulate EMT random regular, with purely geometrical disorder predict their stiffness via distribution tensions. We find a line...

Rigidity theory enables us to specify the conditions of unique localizability in the cooperative localization problem of wireless sensor networks. This paper presents a combinatorial rigidity approach to measure (i) generic rigidity and (ii) generalized redundant rigidity properties of graph structures through graph invariants for the localization problem in wireless sensor networks. We define ...