Stresses in the Joint of an End Fitting to a Composite Torque Tube
When an end fitting is bonded to a composite tube it is normal practice to use thick joint theory to estimate joint shear stresses. Because a composite is much stiffer in the longitudinal than the through thickness direction, the whole tube acts as the joint. Thus the peak stresses depend on the geometry of the joint and the material properties. Mathematical analysis and finite element analysis illustrate stress curves. Consideration is given to an end fitting comprising a mandrel and cuff-nut with mechanical locking.
KeywordsPeak Stress Shear Stress Distribution Composite Tube Torque Transfer External Boundary Condition
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