Results 11 to 20 of about 28,597 (266)
Open Mathematics, 2022 In this article, we consider fully discrete characteristic mixed finite elements for convection-diffusion optimal control problems. We use the characteristic line method to treat the hyperbolic part of the state equation as a directional derivative.
Tang Yuelong, Hua Yuchun
doaj +1 more source
On Two Properties of Shunkov Group
Известия Иркутского государственного университета: Серия "Математика", 2021 One of the interesting classes of mixed groups ( i.e. groups that can contain both elements of finite order and elements of infinite order) is the class of Shunkov groups. The group $G$ is called Shunkov group if for any finite subgroup $H$ of $G$ in the
A.A. Shlepkin, I. V. Sabodakh
doaj +1 more source
A Mixed Finite-Element Method on Polytopal Mesh
Communications on Applied Mathematics and Computation, 2022 arXiv admin note: substantial text overlap with arXiv:2008 ...
Yanping Lin, Xiu Ye, Shangyou Zhang
openaire +4 more sources
Evaluation of Mixed Structural Steel lap Joints Using Experimental and Finite Element Methods [PDF]
Port Said Engineering Research Journal, 2016 Connections in engineering structures such as aircraft, marine and automotive should be designed to fulfill the intended level of safety, serviceability, durability, and the ability to withstand the stresses applied on global structures.
Ebtisam Abdel-Gwad +3 more
doaj +1 more source
3D mixed finite elements for curved, flat piezoelectric structures
International Journal of Smart and Nano Materials, 2019 The Tangential-Displacement Normal-Normal-Stress (TDNNS) method is a finite element method that was originally introduced for elastic solids and later extended to piezoelectric materials.
Martin Meindlhumer, Astrid Pechstein
doaj +1 more source
p-Extension of C0 continuous mixed finite elements for planestrain gradient elasticity
Archives of Mechanics, 2019 A mixed finite element formulation is developed for the general 2D plane strain, linear isotropic gradient elasticity problem. Form II of the dipolar strain gradient theory for micro-structured solids is considered.
S. Markolefas +2 more
doaj +1 more source
Computer Assisted Methods in Engineering and Science, 2020 The relationships between the system matrices of the displacement-based, a primal-mixed, a dual-mixed and a consistent primal-dual mixed finite element model for geometrically nonlinear shear-deformable beams are investigated.
Edgár Bertóti
doaj +1 more source
Advances in Mathematical Physics, 2022 In this paper, we consider semidiscrete splitting positive definite mixed finite element methods for optimal control problems governed by hyperbolic equations with integral constraints.
Yuchun Hua, Yuelong Tang
doaj +1 more source
Solving mixed singular integro-differential equation (IDE) using the finite elements method [PDF]
Iranian Journal of Numerical Analysis and OptimizationIn this work, we describe a new method for the calculation of the numerical solution of the mixed singular integro-differential equation. The method is mainly based on a finite element approximation.
M. Erfanian, H. Zeidabadi, M.S. Hussein
doaj +1 more source
Discrete Dynamics in Nature and Society, 2020 In this paper, we introduce and analyze H(div)-conforming finite element methods for a nonlinear model in poroelasticity. More precisely, the flow variables are discretized by H(div)-conforming mixed finite elements, while the elastic displacement is ...
Yuping Zeng, Zhifeng Weng, Fen Liang
doaj +1 more source