Essays about: "Finite element model"

Showing result 1 - 5 of 509 essays containing the words Finite element model.

  1. 1. Metamodelling of a Finite Element Analysis of a Drilling Process with Replaceable Inserts

    University essay from Högskolan i Skövde/Institutionen för ingenjörsvetenskap

    Author : Samy Akrouh Ettaghadouini; [2019]
    Keywords : drilling; speed; feed; CAD; FEM; simulations; metamodel; neural network; optimization;

    Abstract : The aim of this project is to create a metamodel from a drilling tool with replaceable inserts from FEA of the machining process using MATLAB and ABAQUS. This report contains research in drilling and in metamodeling using neural networks and the work from the design of the CAD, through FEA and simulations, to the metamodeling, excluding the optimization. READ MORE

  2. 2. Simulation and Analysis of Ultrasonic Wave Propagation in Pre-stressed Screws

    University essay from Luleå tekniska universitet/Institutionen för system- och rymdteknik

    Author : Erik Andrén; [2019]
    Keywords : ;

    Abstract : The use of ultrasound to measure preload in screws and bolts has been studied quite frequently the last decades. The technique is based on establishing a relationship between preload and change in time of flight (TOF) for an ultrasonic pulse propagating back and forth through a screw. READ MORE

  3. 3. Implementation and validation of an isogeometric hierarchic shell formulation

    University essay from KTH/Bro- och stålbyggnad

    Author : Michael Loibl; [2019]
    Keywords : Isogeometric Analysis; Shell; Locking; Kirchho-Love; Reissner-Mindlin; Three-Dimensional Shell I;

    Abstract : Within this thesis, thin walled shell structures are discussed with modern element formulationsin the context of the Isogeometric Analysis (IGA). IGA was designed to achieve a directinterface from CAD to analysis. According to the concept of IGA, Non-Uniform RationalB-Splines (NURBS) are used as shape functions in the design and the analysis. READ MORE

  4. 4. Investigating In-plane Shear Behaviour of Uncured Unidirectional Prepreg Tapes

    University essay from KTH/Lättkonstruktioner

    Author : Ming Kai Chea; [2019]
    Keywords : ;

    Abstract : Steering of prepreg tows in an automated fibre placement (AFP) process allows geodesic layup trajectory over a doubly-curved surface, as well as the potential to improve the efficiency of composite structures by tailoring their stiffness. However, defects (such as out-of-plane buckling and tow pull off) are commonly generated when the steering radius exceeds a critical limit, which impact the mechanical properties of the finished product. READ MORE

  5. 5. Analysis of a Prefabricated Concrete Skew Angle Slab Bridge

    University essay from Linnéuniversitetet/Institutionen för byggteknik (BY); Linnéuniversitetet/Institutionen för byggteknik (BY)

    Author : Pär Bengtsson; Johan Wallin; [2019]
    Keywords : Finite Element Model; Skew Angle Slabs; Slab Bridge; Prefabrication;

    Abstract : Prefabricated concrete elements are widely used in the construction industry today. With advantages such as time savings, increased safety at the construction site and minimized material usage, prefab becomes a major challenger to the traditional on-site casting construction method. READ MORE