• Dislocations offer a unifying microstructural mechanism connecting plastic yielding, strain aging, damping, and energy dissipation in metals via dislocation interactions and mobility. This framework links microscopic defect dynamics to macroscopic mechanical behavior, as illustrated by dislocation theory of yielding, damping, size effects, and related elasticity work [1], [2], [5], [8], [12], [13].

• Nonlinear elasticity and large-deformation form a cohesive framework for both metals and rubbers, modeling large strains, anisotropy, and temperature/pressure effects via continuum theories and finite-deformation formulations [3], [4], [11], [14], [19].

• Elastic-constant studies reveal the role of anisotropy and thermomechanical variables on stiffness across materials, guiding predictions for temperature and pressure effects in crystalline and anisotropic systems [4], [6], [19], [20].

• Friction, lubrication, and energy-dissipation mechanisms in solids are analyzed through internal friction and dislocation-related damping, providing a cohesive view of tribological and mechanical loss processes [10], [13], [16].

• Fracture and failure arise from microstructural interactions (solutes, dislocations) and crack propagation, linking solid-solution strengthening, plastic deformation, and crack initiation to metal fracture behavior [7], [9], [15], [18].