The stress state in the bonded joint region of a laminated composite tube subjected to torsional and hygrothermal loadings is analyzed. A finite ele ment solution technique is utilized. The composite can be modeled ply-by-ply, and the adhesive as a separate elastic layer. All six stress components are pre sent in a generally orthotropic material subjected to torsion, and the coupling effects between shear and normal components can become significant. Because of the low interlaminar normal strength of most composites, the in duced stress components may lead to failure. Several example problems are presented.
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