Blar i Institutt for konstruksjonsteknikk på tidsskrift "Journal of the mechanics and physics of solids"
Viser treff 1-9 av 9
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A family of hyperelastic models for human brain tissue
(Journal article; Peer reviewed, 2017)Experiments on brain samples under multiaxial loading have shown that human brain tissue is both extremely soft when compared to other biological tissues and characterized by a peculiar elastic response under combined shear ... -
A thermo-elasto-viscoplastic constitutive model for polymers
(Journal article; Peer reviewed, 2018)In this study, a thermo-elasto-viscoplastic model is developed for a low density cross-linked polyethylene (XLPE) in an attempt to describe the combined effects of temperature and strain rate on the stress-strain response ... -
A through-thickness damage regularisation scheme for shell elements subjected to severe bending and membrane deformations
(Journal article; Peer reviewed, 2018)This research work proposes and validates a damage regularisation model for shell elements used in large-scale simulations. The model evaluates the ratio of bending to membrane loading in the elements based on the ... -
Buckling initiation in layered hydrogels during transient swelling
(Journal article; Peer reviewed, 2019)Subjected to compressive stresses, soft polymers with stiffness gradients can display various buckling patterns. These compressive stresses can have different origins, like mechanical forces, temperature changes, or, for ... -
Deformation and Fracture of Impulsively Loaded Sandwich Panels
(Journal article; Peer reviewed, 2013)Light metal sandwich panel structures with cellular cores have attracted interest for multifunctional applications which exploit their high bend strength and impact energy absorption. This concept has been explored here ... -
Effective behaviour of porous ductile solids with a non-quadratic isotropic matrix yield surface
(Journal article; Peer reviewed, 2019)In this study, we examine the macroscopic yielding of isotropic porous ductile solids having a matrix yield function dependent on the second and third deviatoric stress invariants. Numerical limit analyses using a ... -
Influence of yield surface curvature on the macroscopic yielding and ductile failure of isotropic porous plastic materials
(Journal article; Peer reviewed, 2017)Numerical unit cell models of an approximative representative volume element for a porous ductile solid are utilized to investigate differences in the mechanical response between a quadratic and a non-quadratic matrix yield ... -
Modeling fibrous biological tissues with a general invariant that excludes compressed fibers
(Journal article; Peer reviewed, 2018)Dispersed collagen fibers in fibrous soft biological tissues have a significant effect on the overall mechanical behavior of the tissues. Constitutive modeling of the detailed structure obtained by using advanced imaging ... -
Volume growth during uniaxial tension of particle-filled elastomers at various temperatures–Experiments and modelling
(Journal article; Peer reviewed, 2017)A common presumption for elastomeric material behaviour is incompressibility, however, the inclusion of filler particles might give rise to matrix-particle decohesion and subsequent volume growth. In this article, the ...