The determination of mechanical properties of prosthetic liners through experimental and constitutive modelling approaches

Sylwia Łagan,

Aneta Liber-Kneć

Abstrakt
The aim of the study was the estimation of the ability of hyperelastic material models for the fitting of experimental data obtained in the tensile testing of silicone liners used in lower-limb prosthetics. Three groups of liners were analysed: I – silicone liner, II – part of the liner in which the silicone has a fabric reinforcement, III – silicone liner with an outer covering material. Both longitudinal and circumferential samples were taken. The Neo-Hookean, Mooney-Rivlin and Ogden parameters of constitutive models of hyperelastic materials were calculated.
Słowa kluczowe: prosthetic liners, constitutive models, hyperelastic material, tensile test
References

[1] Ali A., Hosseini M., Sahari B.B., A review and comparison on some rubber elasticity models, Journal of Scientific and Industrial Research, 2010, 69, 495–500.
[2] Baars E.C.T., Geertzen J.H.B., Literature review of the possible advantages of silicon liner socket use in trans-tibial prostheses, Prosthetics and Orthotics International, 2005, 29(1), 27–37,
[3] Cavaco A., Ramalho A., Pais S., Duraes L., Mechanical and structural characterization of tibial prosthetic interfaces before and after aging under simulated service conditions, Journal of the Mechanical Behavior of Biomedical Materials, 2015, 43, 78–90.
[4] Eshraghi A., Osman N.A.A., Gholizadeh H., Ali S., Sævarsson S.K., Abas W.A.B.W., An experimental study of the interface pressure profile during level walking of a new suspension system for lower limb amputees, Clinical Biomechanics, 2013, 28, 55–60.
[5] Kim B., Lee S.B., Lee J.,Cho S., Park H., Yeom S., Park S.H., A comparison among Neo-Hookean model. Mooney Rivlin model. and Ogden model for chloroprene rubber, International Journal of Precision Engineering and Manufacturing, 2012, 13 (5), 759–764.
[6] Klute G.K., Glaister B.C., Berge J.S., Prosthetic liners for lower limb amputees: A review of the literature, Prosthetics and Orthotics International, 2010, 34(2), 146–153.
[7] Martins P., Natal Jorge R., Ferreira A., A comparative study of several material models for prediction of hyperelastic properties: application to silicone-rubber and soft tissues, Strain, 2006, 42, 135–147.
[8] Mooney M., A theory of large elastic deformation, Journal of Applied Physics, 1940, 11, 582–592.
[9] Ogden R.W., Non-linear elastic deformations, Dover Publications Inc., 1984.
[10] Ogden R.W., Saccomandi G., Sgura I., Fitting hyperelastic models to experimental data, Computational Mechanics, Springer-Verlag, 2004.
[11] Rajťúková. V., Michalíková. M., Bednarčíková. L., Balogová. A., Živčák. J,, Biomechanics of lower limb prostheses, Procedia Engineering, 2014, 96, 382–391.
[12] Rivlin R.S., Large elastic deformations of isotropic materials IV. Further developments of the general theory, Philosophical Transactions of the Royal Society London, 1948, A241, 379 –397.
[13] Safari M.R., Meier M.R., Systematic review of effects of current transtibial prosthetic socket designs—Part 1: Qualitative outcomes, Journal of Rehabiltation Research and Development, 2015, 52(5), 491–508.
[14] Sanders J.E., Nicholson B.S., Zachariah S.G., Cassisi D.V., Karchin A., Fergason J.R., Testing of elastomeric liners used in limb prosthetics: Classification of 15 products by mechanical performance, Journal of Rehabilitation Research&Development, 2004, 41 (2), 175–186.
[15] Sasso M., Palmieri G., Chiappini G., Amodio D., Characterization of hyperelastic rubber-like materials by biaxial and uniaxial stretching tests based on optical methods, Polymer Testing, 2008, 27, 995–1004.
[16] Shergold O.A., Fleck N.A., Radford D., The uniaxial stress versus strain response of pig skin and silicone rubber at low and high strain rates, International Journal of Impact Engineering, 2006, 32, 1384–1402.