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Strain gradient plasticity: the flow rule of Fleck and Hutchinson violates...

A recent paper on JMPS has seriously questioned the foundation of the SGP theory of Fleck and Hutchinson.  The matter is not simple, but is it a good bench test for imechanica to discuss?...

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deal with strain gradient by abaqus

 dear everyone,I want to ask if anyone deal with strain gradient proposed by fleck eat. in 1994 and 1997, using subroutine in ABAQUS ?I have read the manul of abaqus for a couple of days.Here is my...

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about critical thickness theory

who  can tell me more about the critical thickness theory ?I will be very excited if you   can introduce some reference to me.I know that critical thickness theory is solved rigorously and ursed to...

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announcement of competition for a research assign on strain gradient plasticity

The University of Brescia (Italy) has published at the web page http://www.unibs.it/on-line/ateneo/Home/Ateneo/Concorsibandiegare/articolo456.html  an announcement of competition for a research assign...

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Problem solving Strain Gradient Viscoplasticity based on the framework of...

I am tyring to solve simple shear problem using a large deformation FE code based on the framework developed by Fleck and Hutchinson for gradient plasticity/viscoplasticity problem (see the attached...

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UEL

Dear Friends, I have written an UEL for Strain Gradient Plasticity but it shows following error : FE SOLVER AND MESH HAVE INCOSISTENT NUMBER OF DOFS I will be very thankful if someone can throw some...

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UEL

Dear Friends, I have written a UEL for Strain Gradient Plasticity and is working well when i give Boundary condition as Concentrated force, But when i apply displacement boundary condition the it...

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Equilibrium Correction for viscoplasticity

In general for incremental plasticity problems it is well known that one has to use an iteration scheme (Newton-Raphson, modified Newton-Raphson or Quassi Newton etc.) in order to achieve a converged...

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Full scholarships available at European Commission funded workshop on...

European Commission' s JRC (Joint Research Centre) is organizing a workshop on physics based modeling of material properties and experimental observations in collaboration with METU (Middle East...

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Strain Gradient Plasticity

Hi all,I have a strange question that has puzzled me since last almost one year.There are many SG-plasticity models in the technical literature, sometimes categorized as lower-order or higher-order...

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Ph.D. position opened at the University of Brescia, Italy

The group of Mechanics of Solids and Structures at the School of Engineering at the University of Brescia (Italy) has an open PhD position. The appointment will begin on January 1st 2014 for three full...

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