Application of the finite element method to evaluate the lower bound shakedown limit for structures subjected to combined mechanical and thermal loading

In this study, the authors use the finite element method to model and analyse a cylindrical copper shelled SLA electrode for EDM operations, which is investigated experimentally in literature. A uniform silver paint thickness and copper shell thickness is assumed around the SLA epoxy core. In the experiment, 2-D analysis was used due to the axissymmetric shape, and steady state and transient die sink EDMing simulations were followed. Modelling parameters are varied and their impact on the resulting temperature and stress fields is evaluated. The intermittent nature of the electrode thermal loading is also simulated with FEM transient analysis. It is shown that, using the finite element method, the influence of the copper shelled SLA electrode manufacturing and EDM-process parameters can be studied.

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Lower Bounds for Eigenvalues of the Stokes Operator

Advances in Applied Mathematics and Mechanics ◽

10.4208/aamm.11-m11103 ◽

2013 ◽

Vol 5 (1) ◽

pp. 1-18 ◽

Cited By ~ 2

Author(s):

Jun Hu ◽

Yunqing Huang

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Lower Bound ◽

Lower Bounds ◽

Stokes Operator ◽

The Finite Element Method ◽

Discrete Eigenvalue ◽

Nonconforming Methods ◽

Element Method

AbstractIn this paper, we propose a condition that can guarantee the lower bound property of the discrete eigenvalue produced by the finite element method for the Stokes operator. We check and prove this condition for four nonconforming methods and one conforming method. Hence they produce eigenvalues which are smaller than their exact counterparts.

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The Impact of FEM Modeling Parameters on the Computed Thermo-Mechanical Behavior of SLA Copper Shelled Electrodes

International Journal of Manufacturing Materials and Mechanical Engineering ◽

10.4018/ijmmme.2011070103 ◽

2011 ◽

Vol 1 (3) ◽

pp. 21-30

Author(s):

Vassilios Iakovakis ◽

John Kechagias ◽

George Petropoulos ◽

Stergios Maropoulos

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Thermal Loading ◽

The Finite Element Method ◽

Fem Modeling ◽

Silver Paint ◽

Paint Thickness ◽

The Impact ◽

Edm Process ◽

Element Method

In this study, the authors use the finite element method to model and analyse a cylindrical copper shelled SLA electrode for EDM operations, which is investigated experimentally in literature. A uniform silver paint thickness and copper shell thickness is assumed around the SLA epoxy core. In the experiment, 2-D analysis was used due to the axissymmetric shape, and steady state and transient die sink EDMing simulations were followed. Modelling parameters are varied and their impact on the resulting temperature and stress fields is evaluated. The intermittent nature of the electrode thermal loading is also simulated with FEM transient analysis. It is shown that, using the finite element method, the influence of the copper shelled SLA electrode manufacturing and EDM-process parameters can be studied.

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Simulation of tuning graphene plasmonic behaviors by ferroelectric domains for self-driven infrared photodetector applications

Nanoscale ◽

10.1039/c9nr06508c ◽

2019 ◽

Vol 11 (43) ◽

pp. 20868-20875 ◽

Cited By ~ 1

Author(s):

Junxiong Guo ◽

Yu Liu ◽

Yuan Lin ◽

Yu Tian ◽

Jinxing Zhang ◽

...

Keyword(s):

Finite Element Method ◽

Finite Element ◽

Interfacial Effect ◽

Infrared Photodetector ◽

The Finite Element Method ◽

Ferroelectric Domains ◽

Element Method

We propose a graphene plasmonic infrared photodetector tuned by ferroelectric domains and investigate the interfacial effect using the finite element method.

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