Browsing Fakultet for ingeniørvitenskap (IV) by Journals "Computer Methods in Applied Mechanics and Engineering"
Now showing items 1-19 of 19
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A natural framework for isogeometric fluid-structure interaction based on BEM-shell coupling
(Journal article; Peer reviewed, 2017) -
A simplified Kirchhoff–Love large deformation model for elastic shells and its effective isogeometric formulation
(Journal article; Peer reviewed, 2019)Isogeometric Kirchhoff–Love elements have received an increasing attention in geometrically nonlinear analysis of elastic shells. Nevertheless, some difficulties still remain. Among the others, the highly nonlinear expression ... -
An isogeometric analysis formulation for red blood cell electro-deformation modeling
(Journal article; Peer reviewed, 2018)An isogeometric analysis formulation for simulating red blood cell (RBC) electro-deformationis presented. Electrically-induced cell deformation experiments are receiving increasing attention as an attractive strategy for ... -
An isogeometric collocation method for frictionless contact of Cosserat rods
(Journal article; Peer reviewed, 2017)A frictionless contact formulation for spatial rods is developed within the framework of isogeometric collocation. The structural mechanics is described by the Cosserat theory of geometrically nonlinear spatial rods. The ... -
An efficient and accurate method for modeling nonlinear fractional viscoelastic biomaterials
(Peer reviewed; Journal article, 2020)While experimental evidence indicates that the mechanical response of most tissues is viscoelastic, current biomechanical models in the computational community often assume hyperelastic material models. Fractional viscoelastic ... -
Explicit isogeometric collocation for the dynamics of three-dimensional beams undergoing finite motions
(Journal article; Peer reviewed, 2018)We initiate the study of three-dimensional shear-deformable geometrically exact beam dynamics through explicit isogeometric collocation methods. The formulation we propose is based on a natural combination of the chosen ... -
A framework for efficient isogeometric computations of phase-field brittle fracture in multipatch shell structures
(Peer reviewed; Journal article, 2020)We present a computational framework for applying the phase-field approach to brittle fracture efficiently to complex shell structures. The momentum and phase-field equations are solved in a staggered scheme using isogeometric ... -
Isogeometric collocation for implicit dynamics of three-dimensional beams undergoing finite motions
(Journal article; Peer reviewed, 2019)We propose a novel approach to the implicit dynamics of shear-deformable geometrically exact beams, based on the isogeometric collocation method combined with the Newmark time integration scheme extended to the rotation ... -
Isogeometric collocation for the Reissner–Mindlin shell problem
(Journal article; Peer reviewed, 2017)We present an isogeometric collocation formulation for the Reissner-Mindlin shell problem. After recalling the necessary basics on differential geometry and the shell governing equations, we show that the standard approach ... -
Isogeometric Kirchhoff-Love shell formulation for elasto-plasticity
(Journal article; Peer reviewed, 2018)An isogeometric thin shell formulation allowing for large-strain plastic deformation is presented. A stress-based approach is adopted, which means that the constitutive equations are evaluated at different integration ... -
Kirchhoff-Love shells within strain gradient elasticity: weak and strong formulations and an H3-conforming isogeometric implementation
(Journal article; Peer reviewed, 2018)A strain gradient elasticity model for shells of arbitrary geometry is derived for the first time. The Kirchhoff–Love shell kinematics is employed in the context of a one-parameter modification of Mindlin’s strain gradient ... -
Machine learning augmented reduced-order models for FFR-prediction
(Peer reviewed; Journal article, 2021)Computational predictions in cardiovascular medicine have largely relied on explicit models derived from physical and physiological principles. Recently, the application of artificial intelligence in cardiovascular medicine ... -
Modeling the porous and viscous responses of human brain tissue behavior
(Peer reviewed; Journal article, 2020)The biomechanical characterization of human brain tissue and the development of appropriate mechanical models is crucial to provide realistic computational predictions that can assist personalized treatment of neurological ... -
Numerical aspects of anisotropic failure in soft biological tissues favor energy-based criteria: A rate-dependent anisotropic crack phase-field model
(Journal article; Peer reviewed, 2018)A deeper understanding to predict fracture in soft biological tissues is of crucial importance to better guide and improve medical monitoring, planning of surgical interventions and risk assessment of diseases such as ... -
Penalty coupling of non-matching isogeometric Kirchhoff-Love shell patches with application to composite wind turbine blades
(Journal article; Peer reviewed, 2018)Isogeometric analysis (IGA) has been a particularly impactful development in the realm of Kirchhoff–Love thin-shell analysis because the high-order basis functions employed naturally satisfy the requirement of C 1 continuity. ... -
Phase-field description of brittle fracture in plates and shells
(Journal article; Peer reviewed, 2016)We present an approach for phase-field modeling of fracture in thin structures like plates and shells, where the kinematics is defined by midsurface variables. Accordingly, the phase field is defined as a two-dimensional ... -
Phase-field simulation of ductile fracture in shell structures
(Peer reviewed; Journal article, 2021)In this paper, a computational framework for simulating ductile fracture in multipatch shell structures is presented. A ductile fracture phase-field model at finite strains is combined with an isogeometric Kirchhoff-Love ... -
Seamless integration of design and Kirchhoff–Love shell analysis using analysis-suitable unstructured T-splines
(Peer reviewed; Journal article, 2020)Analysis-suitable T-splines (ASTS) including both extraordinary points and T-junctions are used to solve Kirchhoff–Love shell problems. Extraordinary points are required to represent surfaces with arbitrary topological ... -
A variational multiscale framework for atmospheric turbulent flows over complex environmental terrains
(Peer reviewed; Journal article, 2020)A residual-based variational multi-scale (VMS) modeling framework is applied to simulate atmospheric flow over complex environmental terrains. The VMS framework is verified and validated using two test cases using linear ...