Transient thermal response near dynamically-loaded cracks during dislocation generation
As a step in considering thermal effects prior to dynamic fracture or the development of fully-plastic crack edge zones, a transient two-dimensional study of edge dislocation generation near cracks in a fully-coupled thermoelastic solid is considered. Dynamic loading is provided either by SV-wave diffraction or tension, and no heat sources are imposed upon the solid. Despite the existence of characteristic lengths in the governing equations, exact solutions to the required mixed boundary/initial value problems are obtained in the multiple transform space. From them, the temperature changes at the dislocation edges for short times after generation are developed.
scientific article; zbMATH DE number 885798
scientific article