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Evaluation of critical fracture energy parameter Gfr and assessment of its transferrability by S. Acharyya; S. Dhar; J. Chattopadhyay is a Engineering article available to read on EtoBox.
What is Evaluation of critical fracture energy parameter Gfr and assessment of its transferrability about?
Prediction of maximum load bearing capacity and crack growth for ductile materials using existing models like J-R curve approach has the problem of transferability and the use of micro-mechanical model (e.g. Gurson Tvergaard, and Needleman [Tvergaard V, Needleman A. Analysis of cup cone fracture in a round tensile bar. Acta Metall 1984;32:157-169]) are limited by the requirements of the huge computation time and large numbers of critical metallurgical parameters as input to analysis. Marie and Chapuliot [Marie S, Chapuliot S. Ductile tearing simulation based on local energy criterion. Fatigue Fract Engng Mater Struct 1998;21:215-227] of CEA, France, proposed a simple but convenient ductile crack growth model using critical fracture energy (G fr ) for crack growth and J i for initiation, both of which are material parameters. They also proposed several schemes, namely, graphical and slope of modified plastic J-integral vs crack growth, J M-pl À Da methods for the evaluation of the value of G fr from specimens as well as from components. In all these methods the role of non-crack displacement in the crack growth process was not considered. The necessary modifications due to non-crack
Who reads Evaluation of critical fracture energy parameter Gfr and assessment of its transferrability?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- S. Acharyya; S. Dhar; J. Chattopadhyay
- Publisher
- Elsevier Science; Elsevier ; Elsevier BV (ISSN 0013-7944)
- Published
- 2008
- Language
- EN
- Field
- Engineering (Physical Sciences)