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Problem solving Strain Gradient Viscoplasticity based on the framework of Fleck and Hutchinson

Submitted by Suman.Guha on

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 paper). As the per the formulation, the independent variables are the displacement increments and eqv. plastic strain rate increments. Two sets of equations are solved, one for displacements and the other for plastic strain rates at nodes, following the the above formulation.

plasticity induced fatigue crack closure

Submitted by johnsmart1987 on
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hi friends am doin my my project on" FEA of plasticity induced crack closure". my specimen size is 80*80 mm. by using symmetry condition i modelled 1/4th of model in ANSYS. therfore i created 40*40 mm plate. with initial crack length of 4mm.means its MT specimen of 80*80mm with 8 mm crack length, by symmetry condition i modelled 40*40 with 4mm crack lenth.

Post-Doctoral Position in Multiscale Mechanics & Physics (MMC) Lab at University of Texas, Arlington

Submitted by ashfaqadnan on

We have an immediate opening for an outstanding post-doctoral fellow in our Multiscale Mechanics& Physics (MMP) Laboratory.  We are broadlyinterested in the fundamental physics and mechanics of nano/bio materials andtheir applications in innovative nano/bio devices. The focus of our current projects include: (i) nanoscale transport phenomena in pharmaceutical, biomedical and biologicalsystems, (ii) mechanics of nanodefects and their applications in engineering nanodevices,(iii) multifunctional and advanced materials for structural applications.

Two PhD positions available at the University of Auckland, NZ

Submitted by Biswajit Banerjee on

There are a couple of funded PhD positions available at the University of Auckland, New Zealand.

 

The topics are, roughly, 

1) Advanced material models and variability

2) Biomimetic sensing and adhesion.

 

The deadline for applications is Friday, October 29, 2010.  Please send a current CV, a statement of purpose, and transcripts/grades from your undergraduate work (and master's work if you have a master's degree in a related field).