NEW ASPECTS OF FATIGUE AND FRACTURE MECHANICS
The significance of the results of Scanning Electron Microscope studies of the microstructural deformation and damage processes in different types of metals for the formulation of an engineering approach to the problem of fatigue and of its relation to fracture mechanics is discussed. The futility of attempts to develop a unique model of fatigue based either on physical theories of lattice defects or on mechanical theories of plastic strain accumulation is demonstrated, and the usefulness of fracture-mechanics concept applied to microcrack development and combined with probabilistic considerations based on order statistics is illustrated.
George Washington Transportation Research Institute. Center for Intelligent Systems Research,
Office of Naval ResearchDepartment of the Navy, 800 North Quincy Street
Arlington, VA United States 22217
Naval Ship Systems CommandWashington, DC United States
Air Force Materials LaboratoryWright-Patterson Air Force Base
Dayton, OH United States 45433
- Freudenthal, A M
- Publication Date: 1973-12
- Features: References;
- Pagination: 63 p.
- TRT Terms: Aluminum alloys; Brass; Copper; Cracking; Deformation; Electron microscopes; Electron microscopy; Fatigue (Mechanics); Fatigue (Physiological condition); Fatigue cracking; Fracture mechanics; Microcracking; Microstructure; Steel; Structural analysis; Titanium
- Uncontrolled Terms: Crack propagation; Fatigue analysis; Fatigue life; Fracture; Microcracks
- Old TRIS Terms: Fatigue stress
- Subject Areas: Geotechnology; Highways; Marine Transportation; Materials;
- Accession Number: 00091772
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: TR-16 Tech. Rpt.
- Contract Numbers: N00014-67A-0214-0011
- Files: TRIS
- Created Date: Sep 10 1975 12:00AM