Effect of an inclusion on the interaction of elastic waves with a crack

✍ Scribed by J.C. Sung; D.C. Wong

• Publisher: Elsevier Science
• Year: 1995
• Tongue: English
• Weight: 836 KB
• Volume: 51
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(94)00286-q

✦ Synopsis

The problem of the scattering of time-harmonic elastic waves by a configuration of a crack and an adjacent inclusion embedded in a 2-D infinite elastic medium is investigated by the traction boundary integral equation (TBIE) method. The result of the formulation is a system of six coupled singular integral equations for the unknown displacement jumps across the crack as well as for the displacement and traction components on the interface boundary between the inclusion and elastic medium. A simple regularization method is used to regularize the hypersingular arisen in the TBIE. Numerical results for elastodynamic stress intensity factors have been obtained for several geometrical configurations, where the influence of the incident angle of plane longitudinal waves, the size and location of the inclusion, and the hardness of the inclusion on the stress intensity factors is fully discussed.