SHAKEDOWN LOADS ON ROLLING DISKS, CYLINDERS AND SPHERES
The state of stress in a rolling disk subjected to various loads in the inelastic range is investigated numerically using the finite element method. Criteria for yielding and unloading during rolling are developed, and their use with the direct method and the quadratic programming technique is demonstrated. Besides the utilization of the constant strain triangular (CST) element in most of the analyses, a higher order elastic-plastic linear strain triangular (LST) element is proposed to take stress variation in a plastic element into account. In addition, a variable size finite element mesh scheme is developed for idealization of the disk. Further modifications and schemes, such as substructuring technique, are suggested. Only plane stress cases have so far been considered in this investigation. The future work should concentrate on the development of yielding and unloading criteria for plane strain and possibly for axisymmetric cases so that stress states near the points of contact in rolling cylinders and camshafts can be investigated.
Clemson UniversityDepartment of Civil Engineering
Clemson, SC United States 29634
National Science Foundation1800 G Street, NW
Washington, DC United States 20550
- ANAND, S C
- Publication Date: 1976-12
- Pagination: 211 p.
- TRT Terms: Deformation curve; Elasticity (Mechanics); Finite element method; Loads; Railroad trains; Roller bearings; Stresses; Structural analysis; Tire treads; Wheels
- Old TRIS Terms: Wheel stresses; Wheel tread stresses
- Subject Areas: Railroads; Vehicles and Equipment;
- Accession Number: 00181214
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: CUSC/DCE-76/1 Final Rpt.
- Contract Numbers: NSF-GK-37150
- Files: TRIS
- Created Date: Sep 14 1978 12:00AM