Testing and manufacturing with numerical modeling of metal PTB orthosis

  • Authors

    • Saif M.Abbas Al Nahrain university
    • Rasha Qasim Humadi Advanced manufacturing Engineering
    • Ayad M. Takhakh Al Nahrain university
    2019-04-03
    https://doi.org/10.14419/ijet.v7i4.26056
  • Patellar Tendon-Bearing (PTB) Tensile, Fatigue, Fiber Glass, Modeling, Gait Analysis.

  • Abstract

    In this work, fiber glass as a reinforcement in composite material used for manufacturing ankle foot orthoses (AFO) PTB type of metal valve with vacuum molding technique fabricated. The material was depended on 8 layers of fiber glass. The mechanical properties of the AFOs’ material were studied by tensile test, and fatigue test. The results showed that the tensile strength (Ϭult ) for fiber glass are 224 MPa, yield strength (Ϭy ) was 170 MPa and elongation at break 1.9mm.The gait cycle (ground reaction force (GRF)) and pressure distribution data were collected by using force plate and F-socket devices respectively for patient of age 29 years with height 185cm and weight 83kg .Heel contact time percent without PTBO equal to 5%, when wearing fiber glass PTBO equal to 59%. The midstance time percent for patient without PTBO equal to 12% when wearing PTBO equal to 34%. Solid work software program was used for PTPO modeling Also; the FEM (ANSYS ver.18.2) was used to compute the equivalent stress (Von-Mises), safety factor of fatigue and total deformation for fiber glass PTBO model. The obtained results from ANSYS gave the profile of safety factor of fatigue (1.1492).

     

     

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  • How to Cite

    M.Abbas, S., Qasim Humadi, R., & M. Takhakh, A. (2019). Testing and manufacturing with numerical modeling of metal PTB orthosis. International Journal of Engineering & Technology, 7(4), 5460-5466. https://doi.org/10.14419/ijet.v7i4.26056

    Received date: 2019-01-17

    Accepted date: 2019-01-25

    Published date: 2019-04-03