Asymptotic analysis of an adhered complete contact between elastically dissimilar materials

作者：Kim Hyung Kyu^*; Hills David A; Paynter Robert J H

来源：The Journal of Strain Analysis for Engineering Design, 2014, 49(8): 607-617.

DOI：10.1177/0309324714538259

• Complete contact
• asymptotic analysis
• elastically dissimilar
• generalized stress intensity factor
• characteristics of slip

A complete contact problem between elastically dissimilar materials is studied using an asymptotic analysis. A quarter plane wedge on a half-plane represents the contact edge geometry. Two eigenvalues are obtained for pairs of contacting materials, and their characteristics are classified on the Dundurs parallelogram. Generalized stress intensity factors, K-I and K-II, are derived to use a two-term stress equation of dimensionless form with developing a mode separation angle. It is found that the order of stress singularity increases as the wedge becomes more rigid than the half-plane. Slipping characteristics on the contact interface are investigated in detail, especially for the case of K-I < 0 < K-II that represents a typical adhesive complete contact condition. An example case is given using a finite element model to provide calibration of the stress intensities for a specific material, geometry and load combination.

• 出版日期2014-11