Sökning: "anisotropic material modeling"

Hittade 5 uppsatser innehållade orden anisotropic material modeling.

  1. 1. Finite Element Macro-modeling of a Historical Masonry Building : Influence of Isotropic vs Anisotropic Plastic Material Model Assumption in Static Analysis

    Master-uppsats, KTH/Bro- och stålbyggnad

    Författare :Madeleine Olsson; Maja Gustavsson; [2023]
    Nyckelord :;

    Sammanfattning : In this study, a macro-modeling strategy is implemented in a bearing wall with arch openings in an existing historical masonry building. This is to investigate what differences and similarities can be observed from the assumption of an orthotropic versus an isotropic constitutive material model. LÄS MER

  3. 2. Continuum damage modeling of delamination in paperboard

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Institutionen för byggvetenskaper; Lunds universitet/Hållfasthetslära

    Författare :Erik Jakobsson; [2021]
    Nyckelord :Creasing; Folding; MD-direction; EB material model; LS-Dyna; eGISSMO; Technology and Engineering;

    Sammanfattning : This work concerns the creasing and folding of a continuum paperboard material model developed by Eric Borgqvist. Creasing is an operation that induces permanent deformation in the material, undertaken for the folding to be performed along a straight fold line without any in-plane cracks. LÄS MER

  4. 3. Failure Modeling of Curved Composite Beams : Numerical Modeling of Failure Onset and Propagation in L-Profile Beams

    Master-uppsats, KTH/Lättkonstruktioner

    Författare :Suhas Gururaj Shetty; [2018]
    Nyckelord :;

    Sammanfattning : The high strength/stiffness-to-weight ratio that composite materials exhibit has led to the utilization of composites as alternative to traditional materials in weight-critical applications. However, the highly anisotropic nature of composites renders the strength prediction under complex loading challenging. LÄS MER

  5. 4. Simulation of Delamination Migration in Laminated Composite Structures - An Approach Combining Extended Finite Elements and a Cohesive Zone Model

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Hållfasthetslära

    Författare :Viktor Björklund; [2018]
    Nyckelord :Crack propagation modeling; Fiber-reinforced polymer; Laminated composites; FRP; CFRP; Cohesive zone model; CZM; Delamination migration; FEM; XFEM; Fracture mechanics; Progressive damage modeling; Surface-based cohesive behaviour; Technology and Engineering;

    Sammanfattning : Fiber-reinforced polymer matrix composites are being used increasingly in lightweight applications where high strength and stiffness is required. One of the main challenges with designing components from such materials is to predict the ultimate strength and behaviour of the structure. 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