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  • Küçük Resim
    Öğe
    Strength and failure analysis of inverse Z joints bonded with Vinylester Atlac 580 and Flexo Tix adhesives
    (Springer, 2012-11) Adin, Hamit; Turgut, Aydın
    In this study, the tensile strength and failure loads of the inverse Z joints were analyzed both experimentally and numerically by using two adhesives with different properties under a tensile load. Vinylester Atlac 580 and Flexo Tix were used as adhesives and the joints were prepared with two different composite materials. Initially, the mechanical properties of the adhesives were specified using bulk specimens. Then, the stress analyses were performed using three-dimensional finite element method (3-D FEM) via Ansys (V.10.0.1). The experimental results were compared with the numerical results and they were found quite reasonable. According to the test results, it can be seen that when the adherend thickness is increased, the stress increases as well. The most appropriate value of the adherend thickness is identified as t = 5 mm. Furthermore, it was observed that the lowest failure load was obtained at t = 3 mm the thickness for each specimen.
  • Küçük Resim
    Öğe
    Stress distribution in a femoral implant with and without bone cement and at different inclination angles
    (Materialpruefung/Materials Testing, 2018-04) Topkaya, Tolga; Solmaz, Murat Yavuz; Turgut, Aydın; Dündar, Serkan; Şanlıtürk, İsmail Hakkı
    The purpose of this study was to investigate numerically the effects of the inclination (collodiaphyseal) angle and bone cement (polymethylmethacrylate) filling on the stress distribution of human femurs and implants after the implementation of a partial endoprotez arthroplasty. Ti6Al4V, which is the most commonly used implant material, was choosen for this study. In the numerical study, solid models of implants and femurs were created using the SolidWorks 2010 package program, then stress analyses were carried out at five different inclination angles, 120°, 125°, 130°, 135° and 140°, with and without bone cement (polymethylmethacrylate), using the ANSYS Workbench 12.0 package program. The anteversion angle was assumed to be 12.5° for all models. As a result of the increase in the inclination angle and the addition of bone cement, it was determined that the stress values of the femurs and implants were reduced. Within the limitations of this study it has been shown that parameters like bone cement, anteversion angle, and an appropriate inclination angle should be tested previous to partial endoprosthesis arthroplasty surgery necessary as a result of damage to the human femur.
  • Küçük Resim
    Öğe
    Yapıştırıcının mekanik özelliklerinin bulk numuneler yardımıyla belirlenmesi
    (e-Journal of New World Sciences Academy, 2010-07) Adin, Hamit; Turgut, Aydın; İşcan, Bahattin
    Bu çalışmamızın amacı, konstrüksiyon tasarımı için gerekli bazı yapısal yapıştırıcıların mekanik özelliklerinin belirlenmesidir. Çalışmamızda yapıştırıcı malzemelerin mekanik özelliklerini tespit etmek içim bulk numuneler kullanılmıştır. Numuneler için kalıp yapılmış, numunelerin gaz boşlukları ve süneksizlikleri giderildikten sonra deneyler yapılmıştır. ASTM çekme deney prosedürü uygulanarak yapıştırıcıların mekanik değerleri bulunmuştur. Deneyler sonucunda yapıştırıcıların elastik şekil değiştirme gösterdikleri görülmüştür.
  • Küçük Resim
    Öğe
    The effect of angle adhesive with bonded in Z type materials
    (e-Journal of New World Sciences Academy, 2010-03) Adin, Hamit; Turgut, Aydın; İşcan, Bahattin
    The usage of adhesives as connecting on method is increasing rapidly in today world. Many of research, development and engineering have been made to find the most important parameters for a success adhesion. In this study, stress analysis of Z type bonded sheet that connected with various adhesives has been investigated. The adhesive thickness was constant (0.20 mm) b lap joint length and lap joint angles (θ=15º, 30º, 45º) were varied for analysis. This study has deal with the effect of overlap angle on predicting of the damage load of adhesively bonded joints via a linear FEM(Finite Element Method). All of the analysis were carried out with Ansys (10.0) computer software with a generally purposed finite element application. Experimental results were compared with numerical results and were found quite reasonable