Kinking of a crack under dynamic loading conditions

✍ Scribed by J. D. Achenbach; R. P. Khetan

• Publisher: Springer Netherlands
• Year: 1979
• Tongue: English
• Weight: 919 KB
• Volume: 9
• Category: Article
• ISSN: 0374-3535
• DOI: 10.1007/bf00041321

✦ Synopsis

A method is presented to analyze elastodynamic stress intensity factors at the tip of a branch which emanates at velocity v and under an angle r~r from the tip of a semi-infinite crack, when the faces of the semi-infinite crack are subjected to impulsive normal pressures. By taking advantage of self-similarity, the system of governing equations is reduced to a set of two Laplace's equations in half-plane regions. The solutions to these equations, which are coupled along the real axes of the half-planes, are obtained by using complex function theory together with summations over Chebychev polynomials. For small values of ~ the Mode I and Mode II stress intensity factors and the corresponding flux of energy into the crack tip have been computed.