Bearing capacity of hollow composite rods in torsion
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Rods of circular section failed via delamination due to tangential stresses reaching the shear strength of the carbon-fiber-reinforced plastic.
In a strength assessment of a box-shaped rod subject to edge failure, the determining role belongs to increased tangential stresses at the edge. Stress concentrations at the edge agree with values computed from the concentration factor in (1) and (2).
The ratio and sequence of the layer placement of LTW rods do not affect the limiting stresses attained for edge failure.
In the case of the loss of face stability of a box-shaped rod, the limiting twisting moment depends on the indicated structural parameters of the LTW rods.
KeywordsShear Strength Stress Concentration Concentration Factor Tangential Stress Determine Role
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