A Finite Element Evaluation of Residual Stress in a Thread Form Generated by a Cold-Rolling Process
This paper presents a finite element evaluation of residual stress in a thread form generated by a cold rolling process. Included in this evaluation area mesh development study, methodology sensitivity studies, and the effects of applied loads on the stress in a rolled thread root. A finite element analysis of the thread forming process using implicit modeling methodology, incremental large deformation, elastic-plastic material properties, and adaptive meshing techniques was performed. Results of the study indicate the axial component of the residual stress in the thread root of the fastener is highly compressive. Results also indicate that a rolled threaded fastener loaded to an average tensile stress equal to yield through the cross-section will retain compressive stresses in the thread root. This compressive stress state will be advantageous when evaluating fasteners for fatigue and environmental concerns.
- Research Organization:
- Knolls Atomic Power Lab., Niskayuna, NY (US)
- Sponsoring Organization:
- USDOE Office of Nuclear Energy, Science and Technology (NE) (US)
- DOE Contract Number:
- AC12-76SN00052
- OSTI ID:
- 8218
- Report Number(s):
- KAPL-P-000120; TRN: AH200117%%55
- Resource Relation:
- Conference: ASME Pressure Vessel and Piping Conference, Boston, MA (US), 08/01/1999--08/05/1999; Other Information: PBD: 26 Feb 1999
- Country of Publication:
- United States
- Language:
- English
Similar Records
Fatigue acceptance test limit criterion for larger diameter rolled thread fasteners
Optimum Thread Rolling Process That Improves SCC Resistance