Mechatronic Systems Engineering 3301A/B Lecture Notes - Lecture 36: Moment Distribution Method, Electrical Resistance And Conductance, Damage Tolerance
19 Aug 2020
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Document Summary
Segmented structures are hybrid materials which utilize their shape to provide topological changes to the material properties of the hybrid. There are the only hybrid material we consider that can be a single material (can also contain multiple materials too) Composed of dense collection of a repeated unit of solid material. Segmented structures are often used to decrease bending stiffness. The subdivisions lower the stiffness by dividing the material into discrete units. Consider the change in efficiency when a solid square beam of section is subdivided into cylindrical strands, each of radius , such that. Galvanized steel wire a large range while leaving the axial stiffness unchanged. The axial stiffness of the original bar is proportional to , and its bending stiffness is proportional to. : is the second moments of area. When made into a cable of parallel cylindrical strands, the axial stiffness remains unchanged, but the bending stiffness falls to a value proportional to.
