activity
20102026
most citedHigh-accuracy phase-field models for brittle fracture based on a new family of degradation functions

222 citations · 937 across the 65 of their papers we have counts for

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Showing 2024Show all

6 papers · 1 filter

math.NA2024

A Finite Volume Method for Elastic Waves in Heterogeneous, Anisotropic and Fractured Media

Ingrid Kristine Jacobsen, Inga Berre, Jan Martin Nordbotten +1

Numerical modeling of elastic wave propagation in the subsurface requires applicability to heterogeneous, anisotropic and discontinuous media, as well as support of free surface bo…

math.NA2024

Mixed finite element and TPSA finite volume methods for linearized elasticity and Cosserat materials

Jan Martin Nordbotten, Wietse M. Boon, Omar Duran +1

Cosserat theory of elasticity is a generalization of classical elasticity that allows for asymmetry in the stress tensor by taking into account micropolar rotations in the medium.…

math.NA2024

Network Inpainting via Optimal Transport

Enrico Facca, Jan Martin Nordbotten, Erik Andreas Hanson

In this work, we present a novel tool for reconstructing networks from corrupted images. The reconstructed network is the result of a minimization problem that has a misfit term wi…

math.NA2024

Two-point stress approximation: A simple and robust finite volume method for linearized (poro-)mechanics and Stokes flow

Jan Martin Nordbotten, Eirik Keilegavlen

In this paper, we construct a simple and robust two-point finite volume discretization applicable to isotropic linearized elasticity, valid in also in the incompressible Stokes' li…

math.NA2024★ 1 cited

Mixed finite element methods for linear Cosserat equations

Wietse Marijn Boon, Omar Duran, Jan Martin Nordbotten

We consider the equilibrium equations for a linearized Cosserat material and provide two perspectives concerning well-posedness. First, the system can be viewed as the Hodge Laplac…

math.AT2024

An abstract approximation tool for mixed-dimensional and equidimensional modeling

Daniel Førland Holmen, Jan Martin Nordbotten, Jon Eivind Vatne

Many coupled problems in engineering and science can be described by elliptic partial differential equations on adjacent domains, where the coupling can be considered either as a t…