We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Determination of critical CTOD using crack flank opening angle method in general yield regime.
- Authors
CHAUDHARI, V. V.; KULKARNI, D. M.; PRAKASH, R.
- Abstract
The crack tip opening displacement (CTOD) evaluation from CMOD values using compact tension (CT) specimen geometry and plastic hinge model (PHM) is well standardized in the literature. However, the model is found to be conservative for the general yielding situation. Moreover, the knowledge of the location of apparent axis of rotation which in turn depends on plastic rotational factor, r, is essential for the conversion from CMOD to CTOD. In the present investigation, the 'crack flank opening angle' (CFOA) method has been suggested for the evaluation of plastic CTOD. This approach has facilitated the exact determination of apparent axis of rotation. The effect of the specimen thickness and notch root radius on CTOD has been investigated using the PHM and CFOA method. These results have been compared with finite element analysis results. Results achieved point out that the CTOD obtained from the traditional PHM are underestimated for the general yield situation.
- Subjects
TENSILE architecture; FINITE element method; MECHANICAL engineering; STRENGTH of materials; GEOMETRY
- Publication
Fatigue & Fracture of Engineering Materials & Structures, 2011, Vol 34, Issue 4, p260
- ISSN
8756-758X
- Publication type
Article
- DOI
10.1111/j.1460-2695.2010.01515.x