Abstract
A PC program is presented for the preliminary design of composite beams based on composite mechanics and the finite element method (FEM). This type of element is derived using Timoshenko beam theory which allows accounting for shear effects on beam deflection. Expressions of shear coefficients have been considered for a rectangular laminated beam and for a series of thin-walled sections (with reference being made in the latter case to the transformed section method). Application to an automotive leaf spring has demonstrated the feasibility of using the program as a tool in establishing the initial design considerations and in developing preliminary designs.
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