Singular stresses in a finite region of two dissimilar viscoelastic materials with traction-free edges

摘要

Traditional finite element analyses of the stress state in regions with dissimilar viscoelastic materials are incapable of correctly resolving the stress state because of the unbounded nature of the stresses. A hybrid formulation is developed utilizing the exact solution for the stress and displacement fields based on the eigenfunction expansion method under general loading. The region has two dis- similar viscoelastic material wedges with perfect bonding, and is not limited to a particular geometric configuration.