Results 51 to 60 of about 62,919 (266)

Knowledge-based fast finite element modeling method for ship structures

open access: yesZhongguo Jianchuan Yanjiu
ObjectiveAs creating finite element models for the finite element analysis of ship structures is time-consuming and highly dependent on engineers' experience, this paper proposes a knowledge-based fast finite element modeling method to solve this problem.
Wenjun LUO   +3 more
doaj   +1 more source

Rafting of Ni‐Based Superalloys Under Multiaxial Load as Understood by Phase‐Field Simulations and Critical Experiments

open access: yesAdvanced Engineering Materials, EarlyView.
Phase‐field simulations coupled with dislocation‐density‐based crystal plasticity modeling reproduce γ′ rafting behavior in single‐crystal Ni‐based superalloys under varied loading conditions. The model captures both macroscopic creep and microscopic morphology evolution, with results matching high‐temperature creep experiments.
Micheal Younan   +5 more
wiley   +1 more source

The Application of an Abaqus Preprocessor Based on Python Language in a DAHC Negative Poisson Ratio Structure

open access: yesCrystals
The double-arrow hollow cylinder (DAHC) has excellent mechanical properties under axial compression loads due to its negative Poisson ratio structure.
Xiaoting Sun   +5 more
doaj   +1 more source

A Composite Finite Element-Finite Difference Model Applied to Turbulence Modelling [PDF]

open access: yes, 2007
Turbulence has been modeled by a two equation k-?turbulence model to investigate the wind induced circulation patterns in coastal waters. Predictions of the model have been compared by the predictions of two equation k-?turbulence model. Kinetic energy of turbulence is k, dissipation rate of turbulence is ?, and frequency of turbulence is ?.
Lale Balas, Asu Inan
openaire   +3 more sources

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced Engineering Materials, EarlyView.
Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley   +1 more source

Microstructure‐Controlled Crack Propagation and Fracture Resistance in MoSiBTiC Alloy Revealed by Multiscale Extended Finite Element Method Modeling

open access: yesAdvanced Engineering Materials, EarlyView.
A two‐dimensional multiscale finite element analysis framework was established for the first‐generation MoSiBTiC alloy, and the mechanical and fracture‐related parameters of the constituent phases were calibrated through experiments and simulations. The framework provides a basis for analyzing crack propagation behavior in its complex microstructure ...
Junfeng Du   +4 more
wiley   +1 more source

Finite Element Modeling of Airflow During Phonation

open access: yesApplied and Computational Mechanics, 2010
In the paper a mathematical model of airflow in human vocal folds is presented. The geometry of the glottal channel is based on measurements of excised human larynges. The airflow is modeled by nonstationary incompressible Navier-Stokes equations in a 2D
Šidlof P.   +5 more
doaj  

MODELING OF TWO-PHASE FLUID FILTRATION FINITE ELEMENT METHOD

open access: yesВестник Северо-Кавказского федерального университета, 2022
The problem of oil production by means of non-piston water displacement is considered. The numerical model for twophase incompressible fluid filtration is designed.
Lusine Arsenovna Grigoryan
doaj  

Meso-scale finite element modeling of non-homogeneous three-phase concrete

open access: yesCase Studies in Construction Materials, 2017
Assumptionof material homogeneity is not realistic in study of the mechanical behavior of concrete. When a concrete specimen under loading condition starts to crack, it changes from a continuous state into a discrete one.
Siamak Shahbazi, Iraj Rasoolan
doaj   +1 more source

Molecular Dynamics Studies of Shape Memory Polymers: From Bead–Spring Models to Atomistic Simulations

open access: yesAdvanced Engineering Materials, EarlyView.
Coarse‐grained (left) and atomistic (right) models of the shape memory polymer ESTANE ETE 75DT3 are shown schematically. The two representations bridge molecular detail and mesoscopic description. Both models capture shape memory behavior, linking segmental mobility and conformational relaxation of anisotropic chains to macroscopic recovery, and ...
Fathollah Varnik
wiley   +1 more source

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