A general solution method for an anti-plane shear crack dynamically accelerating along a bimaterial interface |
| |
Authors: | Tanya L Leise |
| |
Institution: | Department of Mathematics and Computer Science, Amherst College Box 2239, P.O. Box 5000, Amherst, MA 01002-5000, USA |
| |
Abstract: | We develop a general solution method for a dynamically accelerating crack under anti-plane shear conditions along the interface between two different homogeneous isotropic elastic materials. The crack is initially at rest, and after loading is applied the crack-tip speed which may accelerate up to the shear wave speed of the more compliant material. The analysis includes an exact, closed-form expression for the stress intensity factor for an arbitrary time-dependent crack-face traction, as well as expressions for computing the crack-face displacements and the stress in front of the crack. We also present some numerical examples for fixed loads and for loads moving with the crack tip, using a stress intensity factor fracture criterion, in order to examine the predicted effect of material mismatch on interfacial fracture. |
| |
Keywords: | Dynamic fracture Bimaterial interface Accelerating crack |
本文献已被 ScienceDirect 等数据库收录! |
|