Description
| Summary: | The transient elastic stress field surrounding a rapidly tearing crack in a single-edged notch (SEN) specimen is analyzed by dynamic photoelasticity using a 16-spark gap Cranz-Schardin camera system. The 1.6-mm-thick annealed polycarbonate SEN specimens produced rapidly tearing cracks with approximately 11-mm-long necked regions which were modeled as Dugdale strip yield zones. In addition, the wake of the residual compressive stress along the rapidly tearing crack was modeled statically by a single force parallel to the crack and acting close to the physical crack tip. Theoretical isochromatics generated by this residual-stress-corrected, propagating Dugdale model of a rapidly tearing crack agreed reasonably well with those obtained experimentally by dynamic photoelasticity
|
|---|
| Physical Description: | 1 online resource (18 pages) : illustrations, figures, tables |
|---|
| Bibliography: | Includes bibliographical references |
|---|
| Access: | Restricted for use by site license. |
|---|