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high strain rate

Fabrice Pierron's picture

Post-doc application still open in Southampton

There is still time to apply the 5-year post-doctoral position at the University of Southampton. We are looking for a talented young researcher to join a group working on the definition of the next generation of high strain rate tests based on ultra-high speed deformation imaging and inverse identification (PhotoDyn project).

high strain rate simulation in abaqus

can anyone tell me how to perform high strain rate simulation in abaqus.

Split Hopkinson Pressure Bar Equipment

Many prior posts asked about manufacturers of Split Hopkinson Pressure Bar equipment. REL Inc in Calumet MI (http://www.relinc.net/products/hopkinson-bar/) designs, builds & installs custom equipment to meet your requirements. We offer a university discount.  And, we provide in-house testing; manufacturing of samples, etc. A new offering in this field is our SurePulse software which simplifies the data acquisition effort for Hopkinson bar testing. 

A question for the audience:

Fabrice Pierron's picture

PhD opportunity at the University of Southampton on high strain rate material testing

Title: Exploration of novel multiaxial high strain rate tests of materials based on full-field strain measurements and inverse identification

Sponsor: EOARD http://www.wpafb.af.mil/library/factsheets/factsheet.asp?id=16662/

Start of PhD: end of September 2013

Fabrice Pierron's picture

IOP/Dymat conference on High Speed Imaging for Dynamic testing of Materials and Structures

The Institute of Physics (IOP, UK) and the Dymat association are co-organizing the 21st Technical Dymat meeting to be held in London, 18-20 November 2013. Information on the conference can be found at:

https://www.eventsforce.net/iop/frontend/reg/thome.csp?pageID=113753&eve...

The deadline for abstract submission is February 28th 2013.

Fabrice Pierron's picture

PhD opportunity at ONERA Lille, France

Virtual Fields Method for the dynamic behaviour
characterisation of metallic materials under purely inertial loads


Inelastic material parameter identification is usually performed
using simple or standardized specimens and unidirectional loadings in order to
stress the specimen with a uniformed field (uni-axial tension, torsion, etc.). However,
these tests, called statically determined, become much more complex to analyse

martin.levesque's picture

PhD positions available at Polytechnique Montréal and McGill universities on shot peening with 5 aerospace companies

Ecole Polytechnique and McGill are seeking two PhD candidates for a large project aiming at understanding the effects of shot peening on the fatigue lives of aerospace components. The project involves 8 PhD students that will be working in close collaboration. The project is co-funded by the Canadian goverment and 5 leading aerospace companies located in Montréal. Some projects involve internships at these companies.

We are seeking two students for the following projects:

 

high strain rate in MD simulations

Dear All, 

Recently I have read some literatures on Molecular simulation of polymer. My interest is measurement of

mechanical properties of polymer through the uniaxial tensile test.    

I have a question about relatively large time scales in MD simulations of polymer and how to interpret MD

stress-strain results for FE modeling. In particular, in the literature it is mentioned that strain rate of

Mechanical Threshold Stress model for 6061-T6 aluminum alloy

I have attached a copy of my McMat07 talk below.  The talk is about a modified mechanical threshold stress (Follansbee-Kocks) model that can be used for strain rates > 1000 /s and high homologous temperatures.  In the model, the pressure dependence of the flow stress arises from the pressure dependence of the shear modulus.  Even after using the most accurate models for the shear modulus (and the melting temperature) we find that the pressure sensitivity of the flow stress is underestimated by our model (by quite a bit).

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