This paper presents three interaction integrals for calculating dynamic stress-intensity factors (SIFs) for a crack in two-dimensional functionally graded materials of arbitrary geometry. The method involves the finite element discretization, where the material properties are smooth functions of spatial co-ordinates and three interaction integrals for mixed-mode dynamic fracture analysis. These integrals can also be implemented in conjunction with other numerical methods, such as meshless method, boundary element method, and others. Numerical examples involving mixed-mode problems are presented to evaluate the accuracy of dynamics SIFs calculated by the proposed interaction integrals. Comparisons have been made between the dynamic SIFs predicted by the proposed three interaction integrals and available reference solutions in the literature, generated either analytically or by finite element method using various other fracture integrals or analyses. An excellent agreement is obtained between the results of the proposed interaction integrals and the reference solutions.
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ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference
July 23–27, 2006
Vancouver, BC, Canada
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4757-8
PROCEEDINGS PAPER
On Comparison of Various Formulations for Evaluation of Dynamic SIFs in FGMs
T. Meenakshi,
T. Meenakshi
Indian Institute of Technology-Madras, Chennai, India
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B. N. Rao
B. N. Rao
Indian Institute of Technology-Madras, Chennai, India
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T. Meenakshi
Indian Institute of Technology-Madras, Chennai, India
B. N. Rao
Indian Institute of Technology-Madras, Chennai, India
Paper No:
PVP2006-ICPVT-11-93755, pp. 311-317; 7 pages
Published Online:
July 23, 2008
Citation
Meenakshi, T, & Rao, BN. "On Comparison of Various Formulations for Evaluation of Dynamic SIFs in FGMs." Proceedings of the ASME 2006 Pressure Vessels and Piping/ICPVT-11 Conference. Volume 6: Materials and Fabrication. Vancouver, BC, Canada. July 23–27, 2006. pp. 311-317. ASME. https://doi.org/10.1115/PVP2006-ICPVT-11-93755
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