A New Closed Form Equation to Design Laminated Composite Tubes with Specified Torsional Stiffness

Authors

1 Libyan Armed Forces, Libya.

2 Egyptian Armed Forces, Egypt.

3 Higher Technological Institute, 10th Ramadan; Egypt.

Abstract

Abstract: A New theoretical formula is derived to calculate the torsional stiffness of both thin and thick-walled laminated composite tubes of [θ/-θ]n configuration. This equation can also be used to design the composite tube with a specified value of torsional stiffness accurately and simply. A numerical example is presented to illustrate the design procedure. The method is validated using the results obtained from an accurate method based on three-dimensional elasticity theory from the literature.

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