Results 21 to 30 of about 5,734 (217)

Numerical material testing based on homogenization method for non-periodic media (Formulation using microscopic fluctuation displacement and macroscopic strain)

Nihon Kikai Gakkai ronbunshu, 2022
We propose a method for numerical material testing that does not explicitly assume boundary conditions in homogenization analyses for microstructures with random or localized inhomogeneities.
Yuichi SHINTAKU, Daiki IMAI, Kenjiro TERADA   +2 more
doaj   +1 more source

Numerical approach for predicting hydrogen diffusion in dual-phase hot stamped boron steel with hydrogen embrittlement

Journal of Materials Research and Technology, 2021
The hot stamped boron steel parts are developed quickly due to the increasing demands of light-weighting for cars. However, hydrogen embrittlement always bothers the manufacture and service process of the hot stamped parts.
Botao Zhang, Shuhui Li, Yongfeng Li
doaj   +1 more source

Comparison of Two Methods for Numerical Upscaling

Engineering Transactions, 2016
The main objective of this paper is to compare two discretization-based homogenization methods. A local numerical homogenization and a multiscale finite element method (MsFEM) are first briefly presented and next numerically tested. In the case of MsFEM,
Marek KLIMCZAK, Witold CECOT
doaj   +1 more source

Effective Complex Properties for Three-Phase Elastic Fiber-Reinforced Composites with Different Unit Cells

Technologies, 2021
The development of micromechanical models to predict the effective properties of multiphase composites is important for the design and optimization of new materials, as well as to improve our understanding about the structure–properties relationship.
Federico J. Sabina, Yoanh Espinosa-Almeyda, Raúl Guinovart-Díaz, Reinaldo Rodríguez-Ramos, Héctor Camacho-Montes   +4 more
doaj   +1 more source

A Semi-Analytical Approach for the Linearized Vibration of Clamped Beams with the Effect of Static and Thermal Load

Applied Sciences, 2023
The geometric nonlinearity due to static and thermal load can significantly alter the vibration response of structures. This study presents a semi-analytical approach to illustrate the nonlinear vibration of clamped-clamped beams under static and thermal
Xuan Yang, Yanbin Li, Qiang Chen, Qingguo Fei   +3 more
doaj   +1 more source

Micromechanics of rock damage: Advances in the quasi-brittle field

Journal of Rock Mechanics and Geotechnical Engineering, 2017
Constitutive models play an essential role in numerical modeling and simulation of nonlinear deformation, progressive damage and failure of rock-like materials and structures.
Qizhi Zhu, Jianfu Shao
doaj   +1 more source

Application of Local Numerical Homogenization and hp-Adaptive FEM for Modeling of Heterogeneous Viscoelastic Materials

Engineering Transactions, 2015
In this paper the application of local numerical homogenization and hp-adaptive FEM for modeling of non-periodic heterogeneous viscoelastic materials is presented. These two methods were combined and modified in order to provide a novel tool for reliable
Marek KLIMCZAK, Witold CECOT
doaj   +1 more source

Approximation of the Mechanical Response of Large Lattice Domains Using Homogenization and Design of Experiments

Applied Sciences, 2020
Lattice-based workpieces contain patterned repetition of individuals of a basic topology (Schwarz, ortho-walls, gyroid, etc.) with each individual having distinct geometric grading.
Diego Montoya-Zapata, Diego A. Acosta, Camilo Cortés, Juan Pareja-Corcho, Aitor Moreno, Jorge Posada, Oscar Ruiz-Salguero   +6 more
doaj   +1 more source

Computation of Effective Elastic Properties Using a Three-Dimensional Semi-Analytical Approach for Transversely Isotropic Nanocomposites

Applied Sciences, 2021
A three-dimensional semi-analytical finite element method (SAFEM-3D) is implemented in this work to calculate the effective properties of periodic elastic-reinforced nanocomposites.
Monica Tapia, Y. Espinosa-Almeyda, R. Rodríguez-Ramos, José A. Otero   +3 more
doaj   +1 more source

Prediction of effective mechanical properties of composite materials using homogenization approach: Application to tungsten fiber reinforced bulk metallic glass matrix composite

European Mechanical Science, 2018
In this paper, the homogenization approach waspresented to predict the effective mechanical properties of heterogeneous materials such as compositematerials.
Soufiane Belhouideg
doaj   +1 more source