Finite Element Analysis for Palm Oil Bunches Press Shaft Fractured in Service

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In this work, the behaviour of a palm fruit bunch press shaft is investigated, which has presented early failure several times, not reaching its expected lifetime. The study allows determining the failure mode of the shaft by using the finite element method (FEM). The model is used to estimate the load produced by the fruit bunches over the worm screw and transferred to the shaft. Geometrical analysis of the shaft shape helps to determine failure mode. The stress and strain fields are obtained to determine the critical points of the design, in order to propose modifications to the shaft design. Moreover, after a short time of operation, the structure presented plastic deformation, the hexagonal shape in the shaft is repaired using a welding procedure, as showed metallographic and hardness results obtained on surface and subsurface level of the affected area for the fractographic analysis. This is compared with a raw steel SAE AISI 4340 under tempered like original condition.

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Edited by:

Luis Rodríguez-Tembleque, Jaime Domínguez and Ferri M.H. Aliabadi

Pages:

191-196

Citation:

O. Bohórquez et al., "Finite Element Analysis for Palm Oil Bunches Press Shaft Fractured in Service", Key Engineering Materials, Vol. 774, pp. 191-196, 2018

Online since:

August 2018

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$38.00

[1] Fedepalma, Entorno económico y desempeño del sector palmero en 2016 y perspectivas 2017,, (2017).

[2] F. Maradei, L. P. Ruiz, and J. Q. Medina, Design of a cutting tool for oil-palm bunches,, Rev. UIS Ing., vol. 17, no. 1, p.59–68, (2018).

[3] E. E. Y. Federación Nacional de Cultivadores de Palma de Aceite., J. A. G. Centro de Investigación en Palma de Aceite., and L. E. F. P., Palmas., vol. 21, no. especial,. FEDEPALMA, (2000).

DOI: https://doi.org/10.23857/dom.cien.pocaip.2017.3.4.oct.459-469

[4] R. Akinoso and A. O. Raji, Note Physical properties of fruit , nut and kernel of oil palm,, Int. Agrophysics, vol. 25, no. 1986, p.85–88, (2011).

[5] T. A. Morakinyo and A. I. Bamgboye, Performance characterization and optimization of a synchronized medium-scale oil palm fruit processing mill,, J. Food Process Eng., vol. 40, no. 5, p. e12523, Oct. (2017).

DOI: https://doi.org/10.1111/jfpe.12523

[6] H. K. Jorgensen, Treatment of empty fruit bunches for recovery of residual oil and additional steam production,, J. Am. Oil Chem. Soc., vol. 62, no. 2, p.282–286, Feb. (1985).

DOI: https://doi.org/10.1007/bf02541392

[7] A. Chapuis, J. Blin, P. Carré, and D. Lecomte, Separation efficiency and energy consumption of oil expression using a screw-press: The case of Jatropha curcas L. seeds,, Ind. Crops Prod., vol. 52, no. January, p.752–761, (2014).

DOI: https://doi.org/10.1016/j.indcrop.2013.11.046

[8] F. P. Beer, J. E. Russell Johnston, J. T. DeWolf, and D. F. Mazurek, Mechanics of Materials. (2015).

[9] R. Akinoso, A. O. Raji, and J. C. Igbeka, Effects of compressive stress, feeding rate and speed of rotation on palm kernel oil yield,, J. Food Eng., vol. 93, no. 4, p.427–430, (2009).

DOI: https://doi.org/10.1016/j.jfoodeng.2009.02.010

[10] T. D. Canonsburg, ANSYS Workbench Verification Manual,, Knowl. Creat. Diffus. Util., vol. 15317, no. October, p.724–746, (2012).

[11] A. Asdrubal, C. Graciano, and O. A. Gonzalez-Estrada, Strength of stainless steel girders under concentrated loads using finite element analysis,, UIS Ing., vol. 16, no. 2, p.61–69, (2017).

[12] E. B. Boyer, Failure Analysis and Prevention, Metal Handbook,, Am. Soc. Met. Ohia, (1975).