HIGH SPEED ROTATING DISK PROJECT
The general objectives of this experimental program were (1) to develop a suitably supported solid disk type specimen, having no disturbing central nib, which would permit unrestrained plastic expansion under high rotation at speeds up to bursting, (2) to measure the strain patterns at several stages of flow up to bursting on specimens of this type to disclose the basic mechanism of flow and provide a means of calculating bursting stresses and (3) to make low-temperature tests on full-size disks of this type to determine the transition temperature from ductile to brittle fracture. Since parts (2) and (3) depend directly on part (1), this was first attacked. Various designs were tried in order to perfect such a specimen. Several attempts were successful in carrying a special flange-supported type specimen containing no central nib well up into the plastic range; up to the present it has not been possible to develop one which could be carried successfully to bursting. Since most of the time was thus utilized for part (1) of the program, only a limited amount of data was accumulated for (2). Some of the necessary equipment for part (3) was either designed or acquired but no tests were conducted for the reasons explained above.
Massachusetts Institute of TechnologyDepartment of Civil Engineering, 77 Massachusetts Avenue
Cambridge, MA United States 02139
Ship Structure CommitteeNational Academy of Science, 2101 Constitution Avenue, NW
Washington, DC United States 20418
- MacGregor, C W
- Tierney, W D
- Majors Jr, H
- Publication Date: 1949-8-29
- Pagination: 40 p.
- TRT Terms: Cracking; Fracture mechanics; Transition point
- Identifier Terms: Ship Structure Committee
- Subject Areas: Marine Transportation; Materials;
- Accession Number: 00330985
- Record Type: Publication
- Source Agency: Ship Structure Committee
- Report/Paper Numbers: SSC- 32 Final Rpt.
- Contract Numbers: NObs-46302, NObs-34231
- Files: TRIS
- Created Date: May 21 1981 12:00AM