Sökning: "viscoplastic"

Visar resultat 1 - 5 av 8 uppsatser innehållade ordet viscoplastic.

  1. 1. Effect of strain rate on continuum and pre-cracked polymer failure

    Master-uppsats, Blekinge Tekniska Högskola/Institutionen för maskinteknik

    Författare :Pratik Rajesh Powar; Ashkan Raeisi; [2021]
    Nyckelord :DIC; LDPE; MCalibration; Polymer; Strain Rate;

    Sammanfattning : The main intention of this thesis work was to investigate the effect of strain rate on continuum and pre-cracked polymer failure. Low-Density Polyethylene (LDPE) was chosen to study experimentally and numerically. In order to cover wide range of strain rates, four specific strain rates were selected for the uniaxial tensile tests. LÄS MER

  3. 2. Material Modelling of Semi-Crystalline Unfilled Polymers

    Master-uppsats, Jönköping University/JTH, Industriell produktutveckling, produktion och design

    Författare :Rishab Karan Mehta; Soniya Gatlewar; [2020]
    Nyckelord :;

    Sammanfattning : With development of polymer science, demands of polymer based products are increasing in automotiveindustries. As a part of product development a significant amount of efforts have been devoted towardsmaterial modeling for polymers which represent the material behavior at different working conditionsusing finite element analysis. LÄS MER

  4. 3. Multifunctional Wood Polymer Composites Reinforced with Graphene Nanoplatelets : Investigating if multifunctionality can be achieved in wood polymer composites through the addition of graphene nanoplatelets

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Vanessa Meulenberg; [2019]
    Nyckelord :Wood polymer composites; graphene; multifunctional; wood flour;

    Sammanfattning : Graphene nanoplatelets (GNPs) were used to reinforce wood polymer composites (WPCs) in order to achieve multifunctionality. Multifunctionality could be achieved through the GNPs because of their excellent mechanical and electrical properties. The research consists of two parts: HDPE/GNP/WF composites and LLDPE/GNP composites. LÄS MER

  5. 4. Software Benchmark and Material Selection in an Exhaust Manifold : Thermo-mechanical fatigue simulation of an exhaust manifold in AVL Fire M

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Oskar Rombo; [2018]
    Nyckelord :thermomechanical fatigue; TMF; simulation; viscoplastic;

    Sammanfattning : Today, there is a great focus on downsizing the engines, this means that the engines are made smaller in size but retain the same power. This in combination with the drive to increase the power of the engines has led to the engine components being exposed to high thermal loads. Today’s engines also use very high cylinder pressure. LÄS MER

  7. 5. Anisotropic material modeling and impact simulation of a brush cutter casing made of a short fiber reinforced plastic

    Master-uppsats, Linköpings universitet/Hållfasthetslära; Linköpings universitet/Tekniska högskolan

    Författare :Oskar Norman; [2014]
    Nyckelord :anisotropic material modeling; short fiber reinforced plastics; impact simulation; Digimat; LS-DYNA;

    Sammanfattning : A popular way to reduce weight in industrial products without compromising the strength or stiffness is to replace components made of metal by plastics that have been reinforced by glass fibers. When fibers are introduced in a plastic, the resulting composite usually becomes anisotropic, which makes it much more complex to work with in simulation software. LÄS MER