Article
Engineering, Multidisciplinary
Faezeh Ebrahimi
Summary: This research investigates the effect of Gaussian energy on the configurations of axisymmetric lipid membranes and proposes a new mathematical model that includes Gaussian energy to accurately capture the changes in membrane topology.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2022)
Article
Mathematics
Todd Arbogast, Chuning Wang
Summary: This paper introduces new families of direct serendipity and direct mixed finite elements defined on general planar, strictly convex polygons. The finite elements provide optimal approximation while using the minimal degrees of freedom. The paper proposes alternative ways to construct supplemental functions on the element, resulting in better accuracy and robustness in numerical tests.
Article
Computer Science, Interdisciplinary Applications
Ibrahim El Bojairami, Amirhossein Hamedzadeh, Mark Driscoll
Summary: The study aimed to investigate the feasibility of reverse engineering the material properties of non-homogeneous soft tissues using an algorithm integrated in a finite element case study. Material properties were iteratively modified via a hybrid gradient descent optimization algorithm and compared to experimental results. Numerical results closely matched experimental data, with the best fit achieved under specific conditions.
MEDICAL & BIOLOGICAL ENGINEERING & COMPUTING
(2021)
Article
Engineering, Multidisciplinary
Chaemin Lee, San Kim, Phill-Seung Lee
Summary: The strain-smoothed element (SSE) method has been developed and applied to improve the convergence behavior of finite elements, limited to constant strain elements. In this paper, the SSE method was successfully applied to a 4-node quadrilateral finite element using piecewise linear shape functions, resulting in significantly improved accuracy.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2021)
Article
Engineering, Multidisciplinary
Sundaram Vinod K. Anicode, Erdogan Madenci
Summary: This study presents a framework for performing Peridynamics analysis in ANSYS, utilizing MATRIX27 elements. The PD equilibrium equations and the PD form of the traction components are solved within the ANSYS framework through implicit methods. The results show accurate and smooth predictions of displacement, and they are in good agreement with finite element results.
COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING
(2022)
Article
Computer Science, Interdisciplinary Applications
Santiago Badia, Pere A. Martorell, Francesc Verdugo
Summary: Unfitted finite element approximations are attractive due to their low geometrical requirements, but complex numerical integrations and limitations in application to implicit geometries are challenges. This study introduces an automatic computational framework for discretizing partial differential equations on oriented boundary meshes, successfully applied to a large number of analysis-suitable meshes combined with unfitted finite element formulations.
JOURNAL OF COMPUTATIONAL PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Kritchanan Charoensuk, Thunyaseth Sethaput
Summary: The study investigates the solution to vibration problems through experimentation and the finite element method. The results show that different notch shapes have different effects on the natural frequency of vibration, with double-sided V-notch increasing the natural frequency and single-sided notched V-notch significantly decreasing the natural frequency. This research approach can be utilized to predict various random frequencies for vibration analysis.
APPLIED SCIENCES-BASEL
(2023)
Article
Computer Science, Software Engineering
Georgios Papanikos, Catherine E. Powell, David J. Silvester
Summary: IFISS is a MATLAB finite element software package for studying strategies for solving partial differential equations. IFISS3D is a new add-on toolbox that extends the capabilities of IFISS to three-dimensional elliptic PDEs. This open-source MATLAB framework provides a computational laboratory for experimentation and exploration of finite element approximation and error estimation, as well as iterative solvers. It is an important teaching tool and resource for researchers.
ACM TRANSACTIONS ON MATHEMATICAL SOFTWARE
(2023)
Article
Engineering, Marine
Luka Grubisic, Domagoj Lacmanovic, Marin Palaversa, Pero Prebeg, Josip Tambaca
Summary: We present an algorithm for the fully automatic generation of a class-compliant mesh for ship structural analysis. The algorithm consists of automatic geometry refinement and a preconditioned Delaunay frontal quad dominant mesh generator. The main contribution of the paper is the automatic geometry refinement algorithm and the virtual stiffener procedure. The algorithm is implemented in Python using the open-source Gmsh system and the Open CASCADE kernel.
JOURNAL OF MARINE SCIENCE AND ENGINEERING
(2022)
Article
Mathematics, Applied
Alexej Moskovka, Jan Valdman
Summary: This article introduces a vectorized implementation method using the simplest linear nodal elements to discretize nonlinear energy functionals, and it enables fast evaluation of the gradients of energy functionals and the evaluation of gradient components over all degrees of freedom at once.
APPLIED MATHEMATICS AND COMPUTATION
(2022)
Article
Mathematics, Applied
A. Zak, W. Waszkowiak
Summary: This paper presents a new finite element method based on spline approximation polynomials, which has been computationally verified to be more accurate in high-frequency dynamics compared to traditional FEM methods. The proposed approach shows promise in accurately calculating natural frequencies and dynamic responses, making it a valuable alternative to existing FEM approaches.
COMPUTERS & MATHEMATICS WITH APPLICATIONS
(2021)
Article
Computer Science, Interdisciplinary Applications
Bastien Bodnar, Walid Larbi, Magdalini Titirla, Jean-Francois Deu, Fabrice Gatuingt, Frederic Ragueneau
Summary: This paper presents a method that combines a hyper-reduction procedure and a non-iterative alpha-OS time-integration scheme for accelerating parametric analyses on damageable civil engineering structures subjected to earthquakes. The method is shown to be applicable and accurate through its application on a specific building model.
COMPUTER-AIDED CIVIL AND INFRASTRUCTURE ENGINEERING
(2023)
Article
Engineering, Multidisciplinary
Kursat Tanriver, A. Y. Mustafa
Summary: Bolts cannot be loaded axially in real field conditions due to off-centered loads and wider holes than bolts. This study developed a software to reveal the moment formation on bolts, considering the plate thickness and material properties. Tensile tests were conducted on M6 bolt connections, and the software's accuracy was measured against experimental and finite element analysis results.
TEHNICKI VJESNIK-TECHNICAL GAZETTE
(2023)
Article
Mathematics, Applied
Todd Arbogast, Chuning Wang
Summary: This paper presents new families of direct serendipity and direct mixed finite elements on general planar, strictly convex polygons. These elements are H-1 and H(div) conforming, respectively, and achieve optimal accuracy for any order. They have the minimum number of degrees of freedom while satisfying conformity and accuracy constraints. The convergence properties of the finite elements are demonstrated under certain regularity assumptions and mild restrictions on the construction of supplemental functions. Numerical experiments on various meshes illustrate the performance of these new finite element families.
NUMERICAL ALGORITHMS
(2023)
Article
Engineering, Civil
Hoontae Jung, Chaemin Lee, Phill-Seung Lee
Summary: This study presents effective polygonal finite elements with the application of the strain-smoothed element (SSE) method. While polygonal elements allow for flexible mesh handling and various applications, further development is needed for more effective use in engineering practice. The study adopts piecewise linear shape functions, applies the SSE method through polygonal elements' triangulation, and constructs a smoothed strain field within the element. The strain-smoothed polygonal elements pass basic tests and demonstrate improved convergence behaviors in various numerical problems.
STRUCTURAL ENGINEERING AND MECHANICS
(2023)
Article
Mathematics, Applied
Victor Dominguez, Tonatiuh Sanchez-Vizuet, Francisco-Javier Sayas
COMPUTERS & MATHEMATICS WITH APPLICATIONS
(2015)
Article
Mathematics, Applied
Yassine Boubendir, Catalin Turc, Victor Dominguez
IMA JOURNAL OF NUMERICAL ANALYSIS
(2016)
Article
Mathematics, Applied
Yassine Boubendir, Victor Dominguez, David Levadoux, Catalin Turc
SIAM JOURNAL ON APPLIED MATHEMATICS
(2015)
Article
Mathematics, Applied
V. Dominguez, M. Ganesh
ADVANCES IN COMPUTATIONAL MATHEMATICS
(2016)
Article
Mathematics, Applied
Tomas P. Barrios, Rommel Bustinza, Victor Dominguez
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2016)
Article
Mathematics, Applied
Victor Dominguez, Mark Lyon, Catalin Turc
JOURNAL OF INTEGRAL EQUATIONS AND APPLICATIONS
(2016)
Editorial Material
Mathematics, Applied
Victor Dominguez, Nicolas Salles, Francisco-Javier Sayas
JOURNAL OF INTEGRAL EQUATIONS AND APPLICATIONS
(2017)
Article
Mathematics, Applied
Victor Dominguez, Sijiang L. Lu, Francisco-Javier Sayas
ADVANCES IN COMPUTATIONAL MATHEMATICS
(2014)
Article
Mathematics, Applied
Victor Dominguez, Sijiang L. Lu, Francisco-Javier Sayas
COMPUTERS & MATHEMATICS WITH APPLICATIONS
(2014)
Article
Mathematics, Applied
Victor Dominguez
JOURNAL OF COMPUTATIONAL AND APPLIED MATHEMATICS
(2014)
Article
Mathematics, Applied
Victor Dominguez, Francisco-Javier Sayas
JOURNAL OF INTEGRAL EQUATIONS AND APPLICATIONS
(2013)
Article
Mathematics, Applied
Oscar P. Bruno, Victor Dominguez, Francisco-Javier Sayas
NUMERISCHE MATHEMATIK
(2013)
Article
Computer Science, Interdisciplinary Applications
V Dominguez, M. Ganesh, F. J. Sayas
JOURNAL OF COMPUTATIONAL PHYSICS
(2020)
Article
Mathematics, Applied
V Dominguez, M. Ganesh
Summary: The study introduces an overlapped continuous model framework for the Helmholtz wave propagation problem in unbounded regions with bounded heterogeneous media, analyzing the application of discrete finite element methods and boundary element methods within the framework, demonstrating the efficiency and importance of numerical experiments.
APPLIED NUMERICAL MATHEMATICS
(2022)
Article
Mathematics, Applied
Victor Dominguez, Sijiang Lu, Francisco-Javier Sayas
INTERNATIONAL JOURNAL OF NUMERICAL ANALYSIS AND MODELING
(2014)