弾性体の接着層で接合された棒のねじり

抄録

Torsion problems for a stepped-bar composed of two semi-infinite bars bonded to each other by an elastic adhesive layer are investigated. When the behavior of the adhesive layer is handled in elasticity, a stress singularity occurrs at the corner of the bare. Therefore, the stress analysis proceeds considering this stress singularity by making use of the series expansion technique, and the problems are reduced to an infinite set of systems of linear equations. Moreover, the stress fields in the neighborhood of the corner are shown by singular terms with only one parameter which is similar to the stress intensity factor. The stress distribution and the values of this parameter are shown for various values of the mechanical properties of the bars and the adhesive layer. In addition, the results are compared with the ones for problems in which the behavior of the adhesive layer is approximated by that of the shear springs.