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Size effects

Mike Ciavarella's picture

Materials: Colourful clay - Nature Materials:

Submitted by Mike Ciavarella on Wed, 2008-07-09 21:39.

Materials: Colourful clay

 Nature

Materials: Colourful clay

Nature 454, 140 (2008). doi:10.1038/454140c


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Rashid K. Abu Al-Rub's picture

Symposium: Plasticity and Damage Size Effects at the Micron and Nano Length Scales

Submitted by Rashid K. Abu Al-Rub on Mon, 2008-04-28 04:03.

Dear Esteemed Researcher,


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Erik Van der Giessen's picture

Another PhD position in the Netherlands: Discrete Dislocations interacting with Grain Boundaries

Submitted by Erik Van der Giessen on Mon, 2008-04-14 19:12.


A four-year PhD position has recently been opened in a collaborative project on Multiscale Metallic Interface Modelling (MuMiM). The student will work on the implementation of the transmission of dislocations across (high-angle) grain boundaries within our Discrete Dislocation Dynamics framework. Parameter values will be provided by atomistic simulations carried out by another partner, and the results will be used to guide the development of a strain-gradient crystal plasticity theory. More details can be found in the attached short description (under workpackage WP1). Please contact E.van.der.Giessen@rug.nl for further info, or check http://micromechanics.phys.rug.nl/index.php?s=Openings.


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PJ Guruprasad's picture

Size effects under homogeneous deformation of single crystals: A discrete dislocation analysis

Submitted by PJ Guruprasad on Wed, 2008-03-19 14:52.

 doi:10.1016/j.jmps.2007.03.009


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Kapil.Nandwana's picture

Non Local Model Vs Implicit Gradient Model

Submitted by Kapil.Nandwana on Wed, 2007-12-12 20:51.

Hi All :

 

I was wondering why some people prefer to use Non Local Model while some others use Implicit Gradient Model (which can be derived from Non Local Model) .

When implicit Gradient Model is itself derived from Non Local Model ,and its FE implimentation just involves an additional average to be calculated and what is the need to introduce gradient terms ??

 

Thanks Alot

 

Kapil 


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