Plasticity

ABAQUS - the influence of changing kinematic and cycling hardening parameters

Submitted by szyfuj on Tue, 12/05/2017 - 02:55

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Hello,

I have recently done a simple hourglass model to check the influence of hardening parameters in Abaqus. The reason was the effects of the parameters' change in bigger models were a bit surprising, therefore I needed to investigate the reason using some simpler model. Please see file 1.

After performing tension/compression cycles I got results as shown in files 2, 3, 4 and 5. Please note that only the hardening parameter in the description changes, the other three stays the same for each series.

Basics of plasticity theory in 6 min

Submitted by rajan_prithivi on Sun, 11/26/2017 - 05:01

This video explains the very fundamental points with regard to plasticity theory. It covers the following -

1) Why study plasticity ?

2) Additive decomposition of strain

3) stress and strength

4) Yield condition , flow rule & hardening rule

-Prithivi

Funded PhD Position at University of Limerick: Cyclic Plasticity of AM Maraging Steel 300

Submitted by kourousis on Thu, 11/16/2017 - 21:46

education

Funded Phd Positon

Plasticity

additive manufacturing

Doctoral Position

Details in the attached file

Computational Geomechanics mini-symposium at EMI 2018, MIT (Due Jan 31, 2018)

Submitted by Jinhyun Choo on Thu, 11/16/2017 - 01:50

Dear Colleague,

We would like to kindly invite you to the Computational Geomechanics mini-symposium at EMI 2018, which will take place in May 29–June 1, 2018 at MIT, Cambridge MA, USA. The abstract submission is now open at https://www.openconf.org/emi2018/openconf.php until January 31, 2018. The mini-symposium description is given below:

How to Realize Volume Conservation During Finite Plastic Deformation

Submitted by Bin Liu on Fri, 10/13/2017 - 03:05

research

Plasticity

Volume conservation during plastic deformation is the most important feature and should be realized in elastoplastic theories. However, it is found in this paper that an elastoplastic theory is not volume conserved if it improperly sets an arbitrary plastic strain rate tensor to be deviatoric. We discuss how to rigorously realize volume conservation in finite strain regime, especially when the unloading stress free configuration is not adopted in the elastoplastic theories.

WCCM Mini-symposium 1701: Computational Geomechanics

Submitted by WaiChing Sun on Thu, 10/12/2017 - 19:53

Dear colleagues:

We invite you to present a talk within the Computational Geomechanics mini-symposium (Session ID: 1701) at the World Congress on Computational Mechanics (WCCM XIII) in New York City from July 22-27th, 2018. The call for abstracts will be open between October 15 and December 31, 2017. The mini-symposium description is provided below.

Session Description:

Postdoc seeking in field of Mechanical or Materials Science Engineering

Submitted by lifeiwang on Wed, 09/13/2017 - 01:44

My name is Lifei Wang, from China. I am 28 years old, and I have been finished my P.H.D degree in July 2015. Now I'm looking for a postdoc research position in the field of Mechanical or Material Science Engineering.

Multi-scale finite element modeling of magnesium medical devices

Submitted by pmcgarry on Fri, 08/11/2017 - 00:52

job

Plasticity

finite element modeling

medical devices

bone biomechanics

<p>Applications are invited from suitably qualified candidates for two full-time Postdoctoral Researcher positions on the finite element simulation of magnesium orthopaedic implants. These three year fixed term positions are funded through a US-Ireland R&D Partnership Programme involving collaboration between the SFI Centre for Research in Medical Devices (Cúram), the NSF Engineering Research Centre Revolutionizing Metallic Biomaterials (RMB, USA), and the Nanotechnology and Integrated Bioengineering Centre (NIBEC, Northern Ireland).

Nanoscale Mechanics of the Solid Electrolyte Interphase on Lithiated-Silicon Electrodes

Submitted by Haoran Wang on Wed, 07/26/2017 - 04:15

Hello Imechanica community, we have just published our study on the mechanics of SEI in Li-ion batteries. Please find the abstract and link as below.

Abstract:

Next Indentation workshop (SF2M-GIME) in Liège (Belgium) in september 2018.

Submitted by David MERCIER on Tue, 06/27/2017 - 18:50

Dear colleagues,

We inform you that the next indentation conference from the Groupe Indentation Multi-Echelle (GIME) will be held in Liège (Belgium) on 11-14 September 2018. The conference gathers every two years, scientists and industrials concerned by the problems of mechanical characterization of surfaces. In 2018, this conference is organized by Belgian scientists: ULg, CRM Group, UCL et UMons. In line with the 2016 edition, we organize two half-days of training on indentation, preceding the 2-day symposium.

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