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Efficiency of rubber-pad cushion in bending process of a thin aluminum sheet

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Abstract

The present paper presents numerical and experimental comparative studies between the conventional bending process (bending using punch and V-die) and bending with a rubber-pad cushion. In fact, a finite-element method is introduced to compare these two procedures used to bend AA1050-H14 Aluminum thin sheet. An elastoplastic constitutive model with quadratic yield criterion of Hill 48 and isotropic hardening behavior has been adopted in FE simulations performed using ABAQUS explicit. To model rubber material, a Mooney–Rivlin theory is used in the finite-element simulation. The purpose of this study is to see the difference between the two methods in terms of effort evolution, springback, stress distribution, thinning. Analyze the effect of the rubber material; in fact, natural rubber, and polyurethane with hardness 50, 70, and 90 shore A are investigated. This numerical study was validated by an experimental investigation that proved the efficiency of the elastic cushion to bend in a better way this thin aluminum sheet.

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Acknowledgements

The authors extend their appreciation to the Deanship of Scientific Research at King Khalid University for funding this work through research groups program under grant number (R.G.P.1/68/40).

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Authors and Affiliations

  1. Mechanical Engineering Department, College of Engineering, Hail University, Hail, Saudi Arabia

    L. Ben Said & N. Khedher

  2. Department of Mechanical Engineering, College of Engineering, King Khalid University, Abha, Saudi Arabia

    M. Wali, A. Kessentini & A. Algahtani

  3. Laboratory of Electro-Mechanical Systems (LASEM), National Engineering School of Sfax, University of Sfax, 3038, Sfax, Tunisia

    L. Ben Said, M. Wali, A. Kessentini & F. Dammak

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  1. L. Ben Said
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Correspondence to L. Ben Said.

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Said, L.B., Wali, M., Khedher, N. et al. Efficiency of rubber-pad cushion in bending process of a thin aluminum sheet. J Rubber Res 23, 89–99 (2020). https://doi.org/10.1007/s42464-020-00040-0

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  • DOI: https://doi.org/10.1007/s42464-020-00040-0

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