Fracture mechanics and reliability of rupture of cast iron rotating disc
In this paper, the crack propagation in opening mode (Mode I) for three kinds of cast iron rotating disc: Flake graphite cast iron disc, Compacted Vermicular cast iron disc, and Spheroidal graphite cast iron disc are analysed by using Boundary Element Method (BEM) and Finite Element Method (FEM). Weibull uniaxial
and multi-axial distribution function is developed and applied to evaluate the reliability of the fracture strength of rotating cast iron disc have inner surface crack. As a result the stress intensity factor (KI) for Flake graphite disc (FGD) is smallest, while (KI) for Spheroidal graphite disc (SGD) was the larger, the value of
(KI) for Compacted Vermicular disc (CVD) has intermediate between the two cast iron discs. It is found that there is a convergence between results obtained from uni-axial and multi-axial distribution function, but multi-axial distribution function give high values compared to uni-axial distribution function
- Each author retains the right to use the work for non-commercial purposes as well as for further research and spoken presentations.
- Each author retains the right to use the illustrations and research data in his/her future work.
- Only one offprint is provided free for each author. The authors can order offprints at the proof stage at certain rates depending on the number of additional copies required and the year of publication.
The publisher of the journal has full rights for publication of the submitted manuscripts, electronic and facsimile formats and for electronic capture, reproduction and licensing in all formats now and in perpetuity in the original and all derivative works.