Fracture Mechanics Analysis of the Dynamic Stress Intensity Factor of 3-Point Bending Specimen Suffering Cyclic Loads

Abstract:

Fracture mechanics analysis of the Dynamic Stress Intensity Factor of a pre-cracked 3-Point Bending Specimen suffering cyclic loads has been studied. Using the theoretical equivalent system of the pre-cracked 3-Point Bending Specimen, the Dynamic Stress Intensity Factor could be obtained theoretically. The finite element method was then applied to study the dynamic behaviors of the Dynamic Stress Intensity Factor under different cyclic loads' conditions using the standard software ABAQUS. The results have also been analyzed and discussed, which provided a deeper view for the fracture characteristics of the materials and could be used to guide further researches and practical engineering design.

• Periodical: Applied Mechanics and Materials (Volumes 143-144)
• Pages: 503-507
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.143-144.503
• Online since: December 2011
• Authors: Ya Yu Huang, Xiang Ping Hu, Tao Hong Liao
• Keywords: 3-Point Bending Specimen, Cyclic Load, Dynamic Stress Intensity Factor (DSIF), Fracture Mechanics

References

[1] Y. Huang and X. Hu, Fracture Mechanics Theoretical Modelling and FEM Analysis of 3-Point Bending Specimen Suffering Cyclic Loads, Proceedings of the 9th International Conference on Reliability, Maintainability and Safety (2011), pp.308-312.

DOI: 10.1109/icrms.2011.5979281

[2] Y. Huang, X. Hu and T. Liao, Fracture Mechanics Mathematical Modelling for Dynamic Stress Intensity Factor of 3-Point Bending Specimen, accept for Proceedings of the 2nd International Conference on Artificial Intelligence, Management Science and Electronic Commerce, IEEE, (2011).

DOI: 10.1109/aimsec.2011.6011187

[3] F. Jiang, A, Rohatgi, K. S. Vecchio and J. L. Cheney, Analysis of the dynamic responses for a pre-cracked three-point bend specimen, International Journal of Fracture, Vol. 127 (2004), pp.147-165.

DOI: 10.1023/b:frac.0000035058.03627.30

[4] Q. Wang and K. Wang, Maximum load and its deflection and stiffness for three-point bending specimens of brittle materials, Journal of Sichang University (Engineering Science edition), Vol. 37 (2005), pp.1-5.

[5] X. Feng, X. Guo, D. Fang and T. Wang, Thee-point micro-bend size effects for pure Ni foils, Chinese Journal of Theoretical and Applied Mechanics, vol. 39 (2007), pp.479-485.

[6] T. Dahlberg and A. Ekberg, Failure Fracture Fatigue: An Introduction: Studentlitteratur: Sweden (2002).

[7] T.L. Anderson, Fracture Mechanics, Fundamentals and Applications, CRC press, Taylor and Francis Group, USA (2005).

[8] K. Kishimotoa, S. Aokia and M. Sakataa, Simple formula for dynamic stress intensity factor of pre-cracked Charpy specimen, Engineering Fracture Mechanics, Vol. 13 (1980), pp.501-508.

DOI: 10.1016/0013-7944(80)90081-8

[9] N. Ibragimov. A practical course in differential equations and mathematical modelling, ALGA Publication, Blekinge Institute of Technology, Sweden (2006).

[10] Information on http: /www. abaqus. com/support/documentation. html.