Testing and manufacturing with numerical modeling of metal PTB orthosis

 
 
 
  • Abstract
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  • 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).

     

     


  • Keywords


    Patellar Tendon-Bearing (PTB) Tensile; Fatigue; Fiber Glass; Modeling; Gait Analysis.

  • References


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Article ID: 26056
 
DOI: 10.14419/ijet.v7i4.26056




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