Essays about: "LS-Dyna"

Showing result 1 - 5 of 67 essays containing the word LS-Dyna.

  1. 1. Extraction of tool reaction forces using LS-DYNA and its use in Autoform sheet metal forming simulation

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Esbjörn Zachén; [2019]
    Keywords : Sheet Metal Forming; Stamping Die; blank holder; Structural Analysis; Finite Element Simulation;

    Abstract : In product development there is still potential to decrease lead times with faster and more accurate simulations. The objective of this thesis was to study whether Finite Element (FE) simulations using explicit LS-DYNA to extract reaction forces from sheet metal forming tools during forming, could be used to improve existing FE models in sheet metal forming software AutoForm. READ MORE

  2. 2. Numerical Methods for Simulating the Metal Shearing Process : A Novel Numerical Model for the Punching of Metals

    University essay from Luleå tekniska universitet/Material- och solidmekanik

    Author : Andreas Svanberg; [2019]
    Keywords : Punching; Blanking; Smoothed Particle Galerkin; SPG; LS-DYNA; FEM; Metal shearing; cutting; particle method; thesis; Stansning; klippning;

    Abstract : When dealing with the separation of materials, the metal shearing process such as punching, is widely used in theindustry due to its time efficient manner. There is however, a need to better understand the process in order toimprove quality of the final product. READ MORE

  3. 3. Industrial Sheet Metal Forming Simulation with Elastic Dies

    University essay from Blekinge Tekniska Högskola/Institutionen för maskinteknik; Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Author : Markus Lind; Viktor Sjöblom; [2018]
    Keywords : Elastic Stamping Dies; FEA; LS-Dyna; Sheet Metal Forming; Structural Analysis;

    Abstract : As part of the development process for new stamping dies, in the automotive sheet metal forming (SMF) industry, the majority of all forming operations are simulated with the Finite Element Method (FEM) before the dies are manufactured. Today, these simulations are conducted with rigid tools under the assumption that there are no tool deformations. READ MORE

  4. 4. Validation of blast simulation models via drop-tower tests

    University essay from Umeå universitet/Institutionen för fysik

    Author : Joakim Rydman; [2018]
    Keywords : Screw; bolt; screw joint; bolted connection; simulation; model; FEM; FEA; finite element; LS-DYNA; drop-tower tests; validation;

    Abstract : This study aims to validate a screw joint simulation model used by BAE Systems in LS-DYNA during blast simulations. It is important that the screw joint simulation model is physically correct, since the simulation results can influence major design decisions. READ MORE

  5. 5. Study of a Body Subjected to a Vertical Drop into Water – Experiment and Simulations

    University essay from Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik; Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Author : Josefin Andersson; Monika Englund; [2018]
    Keywords : ;

    Abstract : In computational fluid dynamics (CFD), the computational domain can be discretized using mesh- based methods or particle based methods. During this project; a CFD method that uses smoothed particle hydrodynamics (SPH), in which the computational domain is discretized by particles, is modelled and compared to mesh-based CFD methods, in which the domains are broken into a set of discrete volumes. READ MORE