The influence of biaxial stresses on the failure assessment curve
Book
·
OSTI ID:122639
- Qingdao Institute of Chemical Technology (China). Dept. of Mechanical Engineering
- Chinese Mechanical Engineering Society, Beijing (China)
In this paper, the influence of biaxial stresses on the crack/notch failure assessment curve (FAC) has been explored by means of incremental theory elastic-plastic finite element (EPFE) method. The FACs of different ratio of biaxial stresses have been established based on the J-integral calculation of center cracked and notched specimens. Meanwhile the comparisons have been made between the FACs given by EPFE and CEGB R6 Option 2. It shows that the biaxial stresses at plastic stage have evident influence on FACs, but the safety range of the FACs are close to that of uniaxial stress FAC. With the standpoint of view of engineering, the FAC given by R6 Option 2 under the uniaxial stress condition could roughly be used to the failure assessment of structures containing defects under biaxial stress condition, but for advanced or precise assessment, the biaxial stress effect must be taken into account. The influence of biaxial stresses on J-integral values and path independence has been investigated at the same time.
- OSTI ID:
- 122639
- Report Number(s):
- CONF-950740--; ISBN 0-7918-1335-5
- Country of Publication:
- United States
- Language:
- English
Similar Records
Deformation plasticity failure assessment diagram (DPFAD) for materials with non-Ramberg-Osgood stress-strain curves
Residual stress effects in LMFBR fracture assessment procedures
Experimental and analytical comparison of constraint effects due to biaxial loading and shallow-flaws
Journal Article
·
Tue Oct 31 23:00:00 EST 1995
· Journal of Pressure Vessel Technology
·
OSTI ID:131626
Residual stress effects in LMFBR fracture assessment procedures
Conference
·
Fri Jun 01 00:00:00 EDT 1984
· Am. Soc. Mech. Eng., (Pap.); (United States)
·
OSTI ID:6279897
Experimental and analytical comparison of constraint effects due to biaxial loading and shallow-flaws
Technical Report
·
Thu Dec 30 23:00:00 EST 1993
·
OSTI ID:10111958