Importance

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Abstract

An anisotropically tailored tubular (fabricated of a composite having an unsymmetrical bias of the reinforcing components of the composite and an elasticity of the matrix thereof such that at least one of compression stress along the long axis of the tubular or tension stress along the long axis of the tubular or pressure on the interior of the tubular will cause localized twisting and/or extension and/or bending of the tubular along its long axis) is run into a depth extended aperture while imparting localized twisting and/or extension and/or bending to the tubular along its length during the course of the running by impressing at least one of compression stress along the long axis of the tubular, or tension stress along the long axis of the tubular, or pressure on the interior of the tubular. Frictional resistance to the running is thus decreased by the localized twisting, bending, and/or extension. Ability to traverse long distances is thus obtained by overcoming the tendency to become stuck by static frictional forces--a 'wiggle worm' effect.

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First Claim