FE AND EXPRIMENTAL ANALYSIS IN MATERIAL CHARACTERIZATION OF A356 IN LOWCYCLE FATIGUE

Document Type : Research Article

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Abstract

This study deals with simulation of low-cyclefatigue (LCF), followed by evaluation of fatigue parameters, which would be suitable for estimating fatigue livesunder uniaxial loading. The cyclic elastic–plastic stress–strain responses were analyzed using the incrementalplasticity procedures. Finite-element (FE) simulation inelastic–plastic regime was carried out in FE packageABAQUS. Emphasis has been laid on calibration of A356Aluminum Alloy for LCF behavior. For experimental verifications, a series of low-cycle fatigue tests were conductedunder strain-controlled, fully reversed condition in MTS 810 with MTS Flex Test GTcontroller at 120 and 280 °Ctemperature. The comparisons between numerical simulations and experimental observations reveal the matching tobe satisfactory in engineering sense. Based on the cyclicelastic–plastic stress–strain response, both from experiments and simulation, loop areas, computed for variousstrain amplitude, have been identified as fatigue damageparameter.The surface microstructure of the samples were examined and images showing the microstructure of certain dendritic structure with secondary dendrite arms (SDAS) they are approximately 25 micrometers. The results of isothermal experiments at temperatures 280 and 120 ° C and the fixed cycle can be seen that the alloy hardening behavior of those cycles of temperature 120 °C and shows the cyclic softening behavior in 280 °Ctemperature.

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References

[1] J.Z. Yi, Y.X. Gao, P.D. Lee, T.C. Lindley, 2004.Mater. Sci. Eng. 386, pp.396–407.
[2] P. Cavaliere, E. Cerri, P. Leo, 2004. J. Mater. Sci. 39,pp. 1653–1658.
[3] K. Gall, N. Yang, M.F. Horstemeyer, D.L. McDowell,J. Fan, Fatigue Fract. Eng.
[4] 2000. Mater. Struct. No. 23, pp. 159–172.
[5] C.H. Caceres, C.J. Davidson, J.R. Griffiths, 1995.Mater. Sci. Eng. 197, pp. 171–179.
[6] Q.G.Wang, C.H. Caceres, 1998. Mater. Sci. Eng. A 241, pp. 72–82.
[7] M. Kalka, J. Adamiec, 2006. Mater. Character. 56,pp. 373–378.
[8] S. Kumai, J. Hu, Y. Higo, S. Nunomura, 1996. Acta Mater. 44, pp. 2249–2257.
[9] Tsuyoshi Takahashi, Katsuhiko Sasaki, 2010. “Low cycle thermal fatigue of aluminum alloy cylinder
head in consideration of changing metrology microstructure”, Procedia Engineering, 2, pp. 767–776.
[10] Mattos, j.j.i, Uehara, A.Y, Sato, M., Ferreira, I,2010. “Fatigue Properties and Micro mechanism of Fracture of an AlSiMg0.6 Cast Alloy Used in Diesel Engine Cylinder Head”, Procedia Engineering, 2, pp.759–765.
[11] Jinghong Fan, David L. McDowell, Mark F. H., Ken Gall, 2003. “Cyclic plasticity at pores and inclusions in cast Al–Si alloys”, Engineering Fracture Mechanics, 70, pp. 1281–1302.
[12] Zeigler H, Q. Appl Mech, pp. 17-55.
[13] B. Li, L. Reis, M. de Freitas, 2006. “Simulation of cyclic stress/strain evolutions for multiaxial fatigue
life prediction, “j. International Journal of Fatigue,28, pp. 451–458.
[14] ABAQUS 6.12 Documentation, 2012. Abaqus Theory Manual, Models for metals subjected to cyclic loading.
[15] Chen WR., Keer LM., 1991. “An application of incremental plasticity theory to fatigue life prediction of steels”, J Eng Mater Technol pp. 113-404.
[16] A. Dutta, S. Dhar, S. K. Acharyya, 2010. “Material characterization of SS 316 in low-cycle fatigue
loading” J Mater Sci, 45, pp. 1782–1789.
[17] Chaboche JL., Nouailhas D., 1989. Trans ASME,pp. 111-384.
[18] K. Shiozawa, J. Kitajima, T. Kaminashi, T. Murai ,T. Takahashi, 2011. “Low-Cycle Fatigue Deformation
Behavior and Evaluation of Fatigue Life on Extruded Magnesium Alloys”, Procedia Engineering, 10, pp.
1244–1249.
[19] Mauricio Anjeloni, 2012. “Fatigue Life Evaluation Of A356 Aluminum Alloy Used For Engine Cylinder
Head”, Doctora Thesis, University Of Sao Paulo.
Amirkabir Journal of Mechanical Engineering
Volume 48, Issue 2
September 2016
Pages 147-156

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