Investigation of the rupture of a plexiglas plate by means of an optical method involving high-speed filming of the shadows originating around holes drilled in the plate
✍ Scribed by Peter Manogg
- Publisher
- Springer Netherlands
- Year
- 1966
- Tongue
- English
- Weight
- 662 KB
- Volume
- 2
- Category
- Article
- ISSN
- 1573-2673
No coin nor oath required. For personal study only.
✦ Synopsis
The loading and unloading of a Plexiglas plate by a running fracture is investigated by means of a series of high-frequency cinematographic pictures of the shadows originating around drilled holes. Near the fracture tip, the stress distribution differs only slightly from that around a corresponding static crack. After the fracture tip, however, there are great deviations owing to the dynamic unloading of the plate, The velocity of the unloading process is considerably lower than the velocity of the transversal waves in the plate.
Ernst Mach Institute (Fraunhofer-Gesellschaft), Freiburg i.Br., West Germany. Now at the European School in Varese, Italy.