Analysis of 2D trusses
This chapter deals with the static analysis of two dimensional trusses, which are basically bars oriented in two dimensional cartesian systems. A transformation of coordinate basis is necessary to translate the local element matrices (stiffness matrix, force vector) into the structural (global) coordinate system. Trusses support compressive and tensile forces only, as in bars. All forces are applied at the nodes. After the presentation of the element formulation, some examples are solved by MATLAB codes.
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