Boğaziçi Üniversitesi Tezleri: Recent submissions

  • Analysis of mode III interlaminar fracture toughness of composite materials 
    Gökçen, M. Gökhan. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    The demand for advanced materials stimulates the research on composites, which provide high stiffness and high toughness. One failure type is delamination or interlaminar fracture, which is analyzed in three modes employing ...
  • Numerical study on airfoils in steady and oscillating streams 
    Özalp, Mehmet Rifat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    In this study, a numerical method has been developed in order to simulate steady and unsteady flow fields around airfoils. The unsteady flow field around the airfoil has been obtained by imposing periodically oscillating ...
  • Mechanical engineering experimentation and laboratory design for Robert College 
    Yeyinmen, Mehmet. (Thesis (M.S.)- Robert College. Institute for Graduate Studies in Science and Engineering, 1964., 1964.)
  • Numerical simulation of two phase flow using the homogeneous flow model 
    Dal, Murat. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1999., 1999.)
    The objective of this study is to understand physical and numerical modelling aspects of two phase flow occurring in heat exchangers used in domestic refrigerators, and construct a computer model to simulate one dimensional ...
  • Vibration transmission through rolling element bearings 
    Oğuz, Serap. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1995., 1995.)
    Current bearing models, based on either ideal boundary condition or purely translational stiffness element description, may be used to analyze the free and forced vibration of the rotor dynamic systems enclosed in a rigid ...
  • A finite element analysis for flow in porous media 
    Atalık, Salim Kunt. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1993., 1993.)
    A finite element analysis for porous media is aimed. In the thesis, it is accepted that groundwater flow occurs only in the saturated region of a porous soil. The problem is formulated based on Darcy's law governing ...
  • An experimental investigation of adaptive servo control of a single axis table 
    Özel, F. İlkin. (Thesis (M.S)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1992., 1992.)
    The object of this thesis is to model a dc motor driven single axis table system and to perform adaptive velocity and position control of the table. After modeling the system, in the first part of the thesis, fixed parameter ...
  • An investigation of the crack propagation model corpus 
    Sönmez, Fazıl Önder. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Sciences and Engineering, 1991., 1991.)
    Models that predict fatigue crack growth are described, classified and compared with respect to applicability and limitations. Crack opening models were found to be more reliable and better adapted to include interaction ...
  • Spray painting manipulator modelling, simulation and control 
    Gürocak, B. Hakan. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1989., 1989.)
    In this study, a computer simulation program package for a six revolute joint spray painting robot having pitch-yaw-roll type wrist configuration has been developed.For this purpose, direct kinematics and inverse kinematics ...
  • State-feedback control of a rigid rotors supported on squeeze-film bearings 
    Akgül, H. Basri. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1988., 1988.)
    In this thesis, pole assignment problem, one of the most commonly used control schemes, is considered and special emphasis is given on the application of available pole assingment algorithms in multi-input systems. Various ...
  • Transerve vibration of an axially accelerating string 
    Pakdemirli, Mehmet. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1987., 1987.)
    The transverse vibration of an axially accelerating string is investigated. The equation of motion is developed using Hamilton's principle. The resulting partial differential equations are discretized using Galerkin's ...
  • Thermodynamic feasibility of solar-assisted absorption cooling 
    Olcay, Dilek. (Thesis (M.S.)- Bogazici University. Institute for Graduate Studies in Science and Engineering, 1987., 1987.)
    Solar cooling is probably among the most promising ways for solar energy utilization in near future. The purpose of the present study is to investigate the thermodynamic feasibility of operating the solar absorption system ...
  • Metal flow in forward cold extrusion 
    Önelge, Raci. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1986., 1986.)
    In this work, experiments with a small-scale extrusion apparatus are described. Billets of commercially pure lead, which has the diameter of 50 mm were extruded at romm temperature into 25 mm diameter solid bars at an ...
  • Analysis of pressure variations in a variable compression engine cylinder 
    Taşcı, Fevzi. (Thesis (M.S.)- Robert College. Faculty of Graduate School of Engineering, 1964., 1964.)
  • Evaluation of time integration algorithms for the semidiscretized heat conduction equation 
    Öncü, Sabri. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1986., 1986.)
    Finite element space discretization of heat conduction equation is briefly outlined, stability and convergence characteristics of relevant time integration methods are discussed. For the numerical integration of the ...
  • A phenomenological approach to stress corrosion cracking 
    Nehrozoğlu, Mehmet Aydemir. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1986., 1986.)
    The applicability of the J-integral to SSC in the elasticplastic range is investigated by using precracked cantilever beam specimens of low carbon steel in 6N H2S04 solution. The correlation of J-integral with the incubation ...
  • Effects of extrusion parameters on the mechanical properties of aluminum 
    Karahan, İsmail. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1986., 1986.)
    The effects of some extrusion parameters, extrusion ratio and initial billet temperature, on the structure and mechanical properties of aluminum are examined. Initial billet temperature and extrusion ratio determine the ...
  • An application of the finite element method to three dimensional heat conduction problems 
    Eruç, Şükrü Erden. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1986., 1986.)
    A finite element solution scheme for three-dimensional transient conduction heat transfer problems is devised and its validity is substantiated through application to representative problems. The governing matrix equation ...
  • The effect of notch geometry on fracture behavior of glass fiber reinforced polyster 
    Elaldı, Faruk. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1986., 1986.)
    The aim of this study is to determine quantitatively fracture toughness properties as a function of the crack tip radius, and the effect of fatique damage produced at the crack tip to the critical stress intensity factor, ...
  • Hot-torsion experiments on aluminum and aluminum alloys 
    Balkır, Ufuk. (Thesis (M.S.) - Bogazici University. Institute for Graduate Studies in Science and Engineering, 1986., 1986.)
    In this study, the effects of temperature and strain rate on the deformation behaviour of aluminum 1100 and aluminum 2024 are investigated. The fundamentals of hot-torsion tests are briefly reviewed and testing methods are ...