Numerical analysis of hemivariational inequalities in contact mechanics

W Han, M Sofonea - Acta Numerica, 2019 - cambridge.org
Contact phenomena arise in a variety of industrial process and engineering applications.
For this reason, contact mechanics has attracted substantial attention from research …

Mesh adaptivity for quasi‐static phase‐field fractures based on a residual‐type a posteriori error estimator

K Mang, M Walloth, T Wick, W Wollner - GAMM‐Mitteilungen, 2020 - Wiley Online Library
In this work, we consider adaptive mesh refinement for a monolithic phase‐field description
for fractures in brittle materials. Our approach is based on an a posteriori error estimator for …

Discontinuous Galerkin methods for a stationary Navier–Stokes problem with a nonlinear slip boundary condition of friction type

F Jing, W Han, W Yan, F Wang - Journal of Scientific Computing, 2018 - Springer
In this work, several discontinuous Galerkin (DG) methods are introduced and analyzed to
solve a variational inequality from the stationary Navier–Stokes equations with a nonlinear …

Virtual element methods for the obstacle problem

F Wang, H Wei - IMA Journal of Numerical Analysis, 2020 - academic.oup.com
We study virtual element methods (VEMs) for solving the obstacle problem, which is a
representative elliptic variational inequality of the first kind. VEMs can be regarded as a …

[HTML][HTML] Virtual element method for simplified friction problem

F Wang, H Wei - Applied Mathematics Letters, 2018 - Elsevier
This work aims at studying the virtual element method (VEM) to solve a simplified friction
problem, which is a typical elliptic variational inequality of the second kind. An optimal error …

Adaptive discontinuous Galerkin methods for solving an incompressible Stokes flow problem with slip boundary condition of frictional type

F Wang, M Ling, W Han, F Jing - Journal of Computational and Applied …, 2020 - Elsevier
We consider the numerical solution of a variational inequality arising in the study of an
incompressible Stokes flow with a nonlinear slip boundary condition of frictional type. We …

Pointwise a posteriori error analysis of a discontinuous Galerkin method for the elliptic obstacle problem

B Ayuso de Dios, T Gudi, K Porwal - IMA Journal of Numerical …, 2023 - academic.oup.com
We present a posteriori error analysis in the supremum norm for the symmetric interior
penalty discontinuous Galerkin method for the elliptic obstacle problem. We construct …

Pointwise a posteriori error analysis of quadratic finite element method for the elliptic obstacle problem

R Khandelwal, K Porwal - Journal of Computational and Applied …, 2022 - Elsevier
In this article, we study a posteriori error analysis of quadratic finite element method in the
maximum norm for the elliptic obstacle problem. We discuss the reliability and the efficiency …

Supremum-norm a posteriori error control of quadratic discontinuous Galerkin methods for the obstacle problem

R Khandelwal, K Porwal, R Singla - Computers & Mathematics with …, 2023 - Elsevier
We perform a posteriori error analysis in the supremum norm for the quadratic discontinuous
Galerkin method for the elliptic obstacle problem. We define two discrete sets (motivated by …

Pointwise adaptive non-conforming finite element method for the obstacle problem

K Porwal, R Singla - Computational and Applied Mathematics, 2024 - Springer
In this article, we develop a posteriori error analysis of a non-conforming finite element
method in the supremum norm for the elliptic obstacle problem. In the analysis, the proper …