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An elastic phase field model for thermal oxidation of metals: Application to zirconia

Submitted by mohsenzaeem on
research
phase field modelling
oxidation

http://www.sciencedirect.com/science/article/pii/S0927025614002031

Abstacrt: A multi-phase field model was developed for non-selective oxidation of metals which captures both the oxidation kinetics and stress generation. Phase field formulation involved a non-conserved phase field variable as the marker for the metallic substrate, oxide scale, and a fluid phase containing oxygen, and a conserved phase field variable representing the concentration of oxygen.

Curve Fitting for Viscoplastic (Anand) Model in ANSYS

Submitted by SaiSudharsanan on
research
Plasticity
ansys
viscoplastic anand model

Hello everyone, 

            I would like to know if it is possible to use TBFT option in ANSYS to curve-fit Anand's model parameters using experimental force-displacement data.

     I am aware that the ANSYS manual  has description for hyperelastic and even chaboche model, but is there an established procedure to obtain Anand model parameters using experimental curve fitting ? 

 

Thank you. 

HELP!

Submitted by AminBakhtiari on
research
friction factor
turbulent regime
annuli

 Hi my friends!

I hope everythin's ok! 

As I previously said I'm doing some researches about fully developed turbulent flow inside an annuli.Now I've faced some problems. Does anyone know how can I calculate Darcy friction factor for a fully developed turbulent regime inside an annuli not using colebrook equations and moody diagram? is there any other way?

I'd be really thankful if anyone could help me .

amin3m6666 [at] gmail.com

PhD Scholarship in Geotechnical Engineering Postgraduate Research of the University of Adelaide

Submitted by da9527 on
research
ABAQUS
Geotechnical engineering
Constitutive model
micro
macro
PhD Scholarship
geomaterial
triaxial test
numerical model
PFC

One research scholarship is immediately available to support a PhD
student to work on a project in Geotechnical Engineering area.  The project is funded by the Australian
Research Council (ARC) and lasts 3 years. 
The scholarship will provide a stipend of A$ 25,392 per annum (in
2014).  Tuition waiver will be
nominated.  Exceptional candidate is
eligible to be awarded an extra amount of allowance in appreciation of his (or
her) possible high quality research outcomes. 

New view of DNA

Submitted by bin.chen on
research

Recently, the classical view of DNA as an isotropic elastic rod has been questioned. Here we model DNA as an elastic rod inlaid with fibrils, based on which we have made prediction that is in consistency with experiments. Our analysis suggests that the bending of short DNAs can be facilitated if there exists a specific structural heterogeneity.

http://appliedmechanics.asmedigitalcollection.asme.org/article.aspx?articleid=1841526

Is anyone familiar with deriving shape functions for different beam end conditions?

Submitted by santhosh_ajayy on
research
finite element methods
mechanical vibration
nonlinear finite element methods

I am doing my research in nonlinear vibration of beams. In that research, I have to derive the shape function for different end conditions of the beam. Regarding this,I need some ideas. Are there books I can reference?

Thank you for your help.

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