Numerical Simulation of Fatigue Behavior of Honeycomb Sandwich Panels

Abstract:

In this study, based on Goodman stress correction algorithm, four point bending fatigue behavior of brazed steel honeycomb sandwich panels at room temperature is simulated using Fe-safe emulation module. The cyclic load was sinusoidal with a frequency f= 10 Hz. The residual life and security coefficient are given in the condition of design fatigue lifetime of 10⁶ cycles. The results show that, in the local deformation, local maximum deformation occurs in the core wall under the load region, indicate that this region is the failure region of fatigue. And the residual life of the core wall in this region is less because of local stress concentration, the probability of failure becomes high, while the residual life in the region far away from the mid-span is high.

• Periodical: Key Engineering Materials (Volumes 525-526)
• Pages: 113-116
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.525-526.113
• Online since: November 2012
• Authors: Jie Lu, Guang Ping Zou, Peng Fei Yang
• Keywords: High Cycle Fatigue (HCF), Honeycomb Sandwich, Residual Life, Security Coefficient

References

[1] Burman M, Zenkert D: Int. J. Fatigue. Vol. 19(1997), pp.551-561.

[2] El Mahi A, Khawar Farooq M, Sahraoui S, et al: Mater. Des. Vol. 25(2004), pp.199-208.

[3] Demelio G, Genovese K, Pappalettere C: Composites Part B: Eng. Vol. 32(2001), pp.299-308.

[4] Belingardi G, Martella P, Peroni L. Fatigue analysis of honeycomb-composite sandwich beams. Compo. Part A, Vol. 38(2007), pp.1183-1191.

DOI: 10.1016/j.compositesa.2006.06.007

[5] Belouettar S, Abbadi A, Azari Z, et al: Compos. Struct. Vol. 87(2009), pp.265-273.

[6] Zou G., Lu J, Cao Y, et al: Acta Metall Sinica, Vol. 47(2011), pp.1181-1187.

[7] Lu J, Zou G.: PROC. of SPIE, 2009, 7522-141.

[8] Fe-safe user's manual, version 5. 00, (2003).