high strain rate

Journal Club for March 2024: 

Unveiling Spatiotemporal Deformation and Dynamics of Soft Materials at Extremely High Rates through Laser-Induced Inertial Cavitation

Jin Yang*

Department of Aerospace Engineering and Engineering Mechanics,

The University of Texas at Austin

*Corresponding author. Email address: jin.yang@austin.utexas.edu

I would like to share our following paper published recently in International Journal of Plasticity:

Modeling and simulation of dynamic compression of Bulk Metallic Glasses at room and elevated temperatures using split Hopkinson pressure bar setup

Position Description

The Yang Research Group (PI: Dr. Jin Yang) in the Department of Aerospace Engineering and Engineering Mechanics (ASE/EM) at the University of Texas at Austin has two funded Ph.D. positions in experimental solid mechanics starting in Spring 2023 (apply before Oct/01/22) or Fall 2023 (apply before Dec/01/22).

Qualifications

I) A bachelor’s or a master’s degree in mechanical engineering, aerospace engineering, engineering mechanics, materials science, bioengineering, or related fields is preferred.

Modeling and numerical simulation of shockwaves in porous materials

A postdoctoral position is available immediately in the Laboratory of Microstructure Studies and Mechanics of Materials (LEM3) of the University of Lorraine (UL) in Metz, France.

Dear Colleagues,

We would like to invite you to submit an abstract for the ‘Shock & Blast’ session under Track 1: Dynamic Behavior of Materials. This symposium is part of the 2018 SEM Annual Conference & Exposition held at Hyatt Regency Greenville, South Carolina, USA, June 4-7, 2018. This conference marks the 75th Anniversary of SEM and will be a special meeting.

We are currently looking for a post-doctoral researcher to join the Photo Dyn group (www.photodyn.org). The initial contract if for two years, starting October 1st 2017. The online application deadline is May 12th 2017. For more information, please see https://jobs.soton.ac.uk/Vacancy.aspx?ref=848217BX.

As part of my EPSRC Fellowship programme, I am now recruiting the second post-doctoral fellow associated with the project. I am looking for a talented young researcher with skills in experimental mechanics, particularly in the field of high rate testing of materials and high speed imaging for full-field deformation measurements. Informal enquiries can be made directly to me at f.pierron@soton.ac.uk, attaching a CV.

As part of the EPSRC project entitled 'Innovative photomechanical approaches in identification of the dynamic mechanical behaviour of materials', two PhD positions are open to EU/UK applicants.

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).

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

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:

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).