Publications 2017

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https://hdl.handle.net/20.500.14170/11325

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Browsing Publications 2017 by Author "Abdul Majid M.S."
  • Publication
    Prediction on fracture risk of femur with Osteogenesis Imperfecta using finite element models: Preliminary study
    ( 2017-10-29)
    Wanna S.B.C.
    ;
    Basaruddin K.S.
    ;
    Mat Som M.H.
    ;
    Mohamad Hashim M.S.
    ;
    Daud R.
    ;
    Abdul Majid M.S.
    ;
    Sulaiman A.R.
    Osteogenesis imperfecta (OI) is a genetic disease which affecting the bone geometry. In a severe case, this disease can cause death to patients. The main issue of this disease is the prediction on bone fracture by the orthopaedic surgeons. The resistance of the bone to withstand the force before the bones fracture often become the main concern. Therefore, the objective of the present preliminary study was to investigate the fracture risk associated with OI bone, particularly in femur, when subjected to the self-weight. Finite element (FEA) was employed to reconstruct the OI bone model and analyse the mechanical stress response of femur before it fractures. Ten deformed models with different severity of OI bones were developed and the force that represents patient self-weight was applied to the reconstructed models in static analysis. Stress and fracture risk were observed and analysed throughout the simulation. None of the deformed model were observed experienced fracture. The fracture risk increased with increased severity of the deformed bone. The results showed that all deformed femur models were able to bear the force without experienced fracture when subjected to only the self-weight.
  • Publication
    Tensile properties of compressed moulded Napier/glass fibre reinforced epoxy composites
    ( 2017-10-29)
    Fatinah T.S.
    ;
    Abdul Majid M.S.
    ;
    Ridzuan M.J.M.
    ;
    Hong T.W.
    ;
    Amin N.A.M.
    ;
    Afendi M.
    This paper describes the experimental investigation of the tensile properties of compressed moulded Napier grass fibres reinforced epoxy composites. The effect of treatment 5% sodium hydroxide (NaOH) concentrated solution and hybridization of Napier with CSM E-glass fibres on tensile properties was also studied. The untreated and treated Napier fibres with 25% fibre loading were fabricated with epoxy resin by a cold press process. 7% fibre loading of CSM glass fibre was hybrid as the skin layer for 18% fibre loading of untreated Napier grass fibre. The tensile tests were conducted using Universal Testing Machine in accordance with ASTM D638. The tensile properties of the untreated Napier/epoxy composites were compared with treated Napier/epoxy and untreated Napier/CSM/epoxy composites. The results demonstrated that the tensile performance of untreated Napier fibre composites was significantly improved by both of the modification; alkali treatment and glass fibre hybridization. Napier grass fibres showed promising potentials to be used as reinforcement in the polymer based composites.
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  • Publication
    The effect of alkaline treatments soaking time on oil palm empty fruit bunch (OPEFB) fibre structure
    ( 2017-10-29)
    Faizi M.K.
    ;
    Shahriman A.B.
    ;
    Abdul Majid M.S.
    ;
    Ahmad Z.A.
    ;
    Shamsul B.M.T.
    ;
    Ng Y.G.
    The primary objective of this work was to study the effect of different soaking time in an alkaline solution for oil palm empty fruit bunch (OPEFB) fibre. For this purpose, the OPEFB fibres were treated with the sodium hydroxide (NaOH) at 5% concentration for 1/2 hour, 1-hour, 3-hour, 5-hour, 7-hour and 24-hours. The single tests of treated and untreated fibre were then performed in accordance with the ASTM D3822-07 standard. Next, the surfaces of the fibres prior and after the treatment were observed with a scanning electron microscope (SEM) TM3000. The result shows that at 7 hours of soaking time exhibits the highest tensile strength compared to the other soaking time and untreated fibre.