Effect of multi-layer prosthetic foam liner on the stresses at the stump–prosthetic interface

Ismail Boudjemaa; Abderahmane Sahli; Abdelkader Benkhettou; Smail  Benbarek

doi:10.3221/IGF-ESIS.56.15

Effect of multi-layer prosthetic foam liner on the stresses at the stump–prosthetic interface

Authors

Ismail Boudjemaa Department of Mechanical Engineering, Laboratory Mechanics Physics of Materials (LMPM), University of SidiBel Abbes, BP 89, cite Ben M’hidi, SidiBel Abbes, 22000, Algeria
Abderahmane Sahli Department of Mechanical Engineering, Laboratory Mechanics Physics of Materials (LMPM), University of SidiBel Abbes, BP 89, cite Ben M’hidi, SidiBel Abbes, 22000, Algeria https://orcid.org/0000-0002-5183-1168
Abdelkader Benkhettou Department of Mechanical Engineering, Laboratory Mechanics Physics of Materials (LMPM), University of SidiBel Abbes, BP 89, cite Ben M’hidi, SidiBel Abbes, 22000, Algeria
Smail Benbarek Department of Mechanical Engineering, Laboratory Mechanics Physics of Materials (LMPM), University of SidiBel Abbes, BP 89, cite Ben M’hidi, SidiBel Abbes, 22000, Algeria

DOI:

https://doi.org/10.3221/IGF-ESIS.56.15

Keywords:

Prosthesis, Stump, Contacts stresses, Multi-layer liner, Trans-tibial amputation

Abstract

The prosthetic liner plays a significant role in the redistribution of the pressure between the stump and the socket, as it adding a cushioning layer between the stump and the socket which relieves pain and makes the prosthesis more comfortable.

This study employed nonlinear finite element analyses to investigate the peak pressure and shear stress at stump–prosthetic interface in the case of multi-layer prosthetic foam liner, this liner having an inner polymeric foam layer Surrounded by another type of polymeric foam layer, we used three different types of foams in different order to define this liner (flexible polyurethane foam, polyurethane-shape memory polymer foam, and natural rubber latex foam). That’s allows comparing 6 deferent configuration of multi-layer prosthetic foam liner.

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Published

28-03-2021

Issue

Vol. 15 No. 56 (2021): April 2021

Section

Analytical, Numerical and Physical Models

License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright
Authors are allowed to retain both the copyright and the publishing rights of their articles without restrictions.

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How to Cite

Effect of multi-layer prosthetic foam liner on the stresses at the stump–prosthetic interface. (2021). Frattura Ed Integrità Strutturale, 15(56), 187-194. https://doi.org/10.3221/IGF-ESIS.56.15