The augmented Lagrangian method as a framework for stabilised methods in computational mechanics

E Burman, P Hansbo, MG Larson - Archives of Computational Methods in …, 2023 - Springer
In this paper we will present a review of recent advances in the application of the augmented
Lagrange multiplier method as a general approach for generating multiplier-free stabilised …

A review on some discrete variational techniques for the approximation of essential boundary conditions

F Chouly - Vietnam Journal of Mathematics, 2024 - Springer
We review different techniques to enforce essential boundary conditions, such as the
(nonhomogeneous) Dirichlet boundary condition, within a discrete variational framework …

[图书][B] Hybrid High-Order Methods: a primer with applications to solid mechanics

M Cicuttin, A Ern, N Pignet - 2021 - Springer
Hybrid High-Order (HHO) methods attach discrete unknowns to the cells and to the faces of
the mesh. At the heart of their devising lie two intuitive ideas:(i) a local operator …

A hybrid high-order discretization combined with Nitsche's method for contact and Tresca friction in small strain elasticity

F Chouly, A Ern, N Pignet - SIAM Journal on Scientific Computing, 2020 - SIAM
We devise and analyze a hybrid high-order (HHO) method to discretize unilateral and
bilateral contact problems with Tresca friction in small strain elasticity. The nonlinear …

Virtual element method for a frictional contact problem with normal compliance

B Wu, F Wang, W Han - … in Nonlinear Science and Numerical Simulation, 2022 - Elsevier
We consider an elastostatic frictional contact problem with a normal compliance condition
and Coulomb's law of dry friction, which can be modeled by a quasi-variational inequality …

Gradient recovery type a posteriori error estimates of virtual element method for an elliptic variational inequality of the second kind

H Wei, Y Deng, F Wang - Nonlinear Analysis: Real World Applications, 2023 - Elsevier
In this paper, gradient recovery type a posteriori error estimators of virtual element
discretization are derived for a simplified friction problem, which is a typical elliptic …

Hybrid high-order methods for the elliptic obstacle problem

M Cicuttin, A Ern, T Gudi - Journal of Scientific Computing, 2020 - Springer
Abstract Hybrid High-Order methods are introduced and analyzed for the elliptic obstacle
problem in two and three space dimensions. The methods are formulated in terms of face …

Hybrid high-order method for singularly perturbed fourth-order problems on curved domains

Z Dong, A Ern - ESAIM: Mathematical Modelling and Numerical …, 2021 - esaim-m2an.org
We propose a novel hybrid high-order method (HHO) to approximate singularly perturbed
fourth-order PDEs on domains with a possibly curved boundary. The two key ideas in …

Conforming and Nonconforming Virtual Element Methods for Signorini Problems

Y Zeng, L Zhong, M Cai, F Wang, S Zhang - Journal of Scientific …, 2024 - Springer
In this paper, we design and analyze the conforming and nonconforming virtual element
methods for the Signorini problem. Under some regularity assumptions, we prove optimal …

[HTML][HTML] Numerical investigation of a 3D hybrid high-order method for the indefinite time-harmonic Maxwell problem

M Cicuttin, C Geuzaine - Finite Elements in Analysis and Design, 2024 - Elsevier
Abstract Hybrid High-Order (HHO) methods are a recently developed class of methods
belonging to the broader family of Discontinuous Sketetal methods. Other well known …