Research on Crack Propagation Life of LD2 Aluminum Alloy Material in Corrosive Environment

Article Preview

Abstract:

This document describe accelerated corrosion test and fatigue test for the LD2 aluminum alloy test specimen, the research object is a LD2 aluminum alloy test-piece which has crack in the corrosion pit, the crack initiation life in the area of Corrosion pit has been defined, the influence of the Corrosion on the crack initiation life in corrosion pit area has been researched. Finally, the simulation of crack propagation for the LD2 aluminum alloy test-piece has been made. By comparing, the result of simulation is more conservative than the actual test value.

You might also be interested in these eBooks

Info:

Periodical:

Pages:

417-423

Citation:

Online since:

September 2013

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2013 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] Li, C. G., & Bo, H. Z. (2002). Aerospace Materials. Beijing: National Defence Industry Press.

Google Scholar

[2] Mu, Z. T. (2002). The analyzing method for fatigue life of aircraft structures under corrosive environment. Engineering Science, 3, 68-72.

Google Scholar

[3] Bay, G. H., Bucci, R. J., & Covin, E. L, et al. (1997). Effects of prior-corrosion on the S/N fatigue performance of aluminum alloys 2024-T3 and 2524-T3. Effects of Environment on the Initiation of Crack Growth, ASTM STP 1298. Philadelphia: ASTM.

DOI: 10.1520/stp19955s

Google Scholar

[4] Gruenberg, K. M., Craig, B. A., & Hillberry, B. M., et al. (2004). Predicting fatigue life of pre-corroded 2024 aluminum. International Journal of Fatigue, 26(7), 629-640.

DOI: 10.1016/j.ijfatigue.2003.10.011

Google Scholar

[5] He, X. F. & Liu, W. T. (2005). Structure durability analysis and research on crack propagation pattern under corrosion condition. Structure & Environment Engineering. 32(4)53-59.

Google Scholar

[6] Wang, X. S., Yu, S. W. & Pi, L. S. (1998). Research on simple methods for predicting the fatigue lives of various carbon steels under a pressure load. Journal of Mechanical Strength. 20 (3), 161-166.

Google Scholar

[7] Sankaran, K. K., Perez, R. & Jata, K. V. (2001) Effect of prior corrosion on the fatigue behavior of aluminum alloy 7075-T6: modeling and experimental studies. Material Science and Engineering. 297, 223-229.

DOI: 10.1016/s0921-5093(00)01216-8

Google Scholar

[8] Mandelbrot, B.B. (1983). The Fractal Geometry of Nature. New York: Freeman.

Google Scholar

[9] Lv, S. L. & Zhang, Y. H. et al. (2010). Research and evaluation on corrosion damage of aluminum alloy structure. Beijing: Northwestern Polytechnical University Press.

Google Scholar

[10] Liu, L. M. & Duan, M. L., et al. (2003). On the physical nature of the Paris law. ACTA MECHANICA SINICA. 35(2), 171-174.

Google Scholar