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dislocation dynamics

Post-doctoral position in mesoscale plasticity

The Materials Theory Group at the School of Materials Engineering of Purdue University has a post-doctoral opening in the area of Mesoscale Plasticity of Irradiated Crystalline Solids. The postdoc will use discrete and continuum dislocation dynamics to investigate the deformation and fracture of structural alloys for fusion applications. A background in continuum mechanics and crystal plasticity is required for this position. The ideal candidate is one who is strongly interested in the fundamental aspects of deformation and fracture of metals and alloys and related computational modeling, and must have excellent programming skills in Fortran and/or C++. For inquiry about this position, please send an email to Professor Anter El-Azab (aelazab@purdue.edu).Any interested candidate may send a resume with list of publications, half a page statement of research interests, and the names of two or three references to the email above. The Materials Theory Group performs theoretical and computational research in the areas of mesoscale plasticity and dislocation dynamics, radiation effects in materials, microstructure evolution, thermal transport, and computational methods for materials science and mechanics.

The position is open now until filled.

Postdoc openings on dislocation dynamics etc. in additive manufacturing at National University of Singapore

Dr. Wentao Yan's group at the Department of Mechanical Engineering, National University of Singapore (NUS), focuses on metal additive manufacturing: computational modeling, experimental investigation and data analytics.

Cai Wei's picture

Postdoctoral Position Opening at Stanford University

Prof. Wei Cai at the Mechanical Engineering Department of Stanford University is seeking a postdoctoral researcher to lead a project on the modeling of dislocations dynamics in the presence of hydrogen.  The major task of this project is to enable/perform Dislocation Dynamics simulations with hydrogen effects using the ParaDiS program. Molecular dynamics simulations may be required to provide physical input to the Dislocation Dynamics model.  The postdoctoral researcher is also expected to collaborate with external experimentalists working on this project.

cdeng's picture

One postdoc position in Dislocation Dynamics available immediately at the University of Manitoba

We currently have opening for one postdoc associate available immediately at the Univesrity of Manitoba (http://home.cc.umanitoba.ca/~dengc/index.html). He/she will be expected to model the dislocation networks and their influence on the mechanical properties of high entropy alloys. The ideal candidate would have a Ph.D. degree in Materials Science or Mechanical Engineering with experiences in Dislocation Dynamics.

noushadbinjamal's picture

ParaDis : Discrete Dislocation Dynamics Simulation

Choose a channel featured in the header of iMechanica: 

Forum to discuss all about use of ParaDis in discrete dislocation dynamics simulation

 

Ph.D. Student Positions in Computational Materials Science and Mechanics

Several Ph.D. student positions are available in Professor El-Azab’s group with the School of Materials Engineering, Purdue University. The group performs advanced theoretical and computational research in the areas of mesoscale plasticity and dislocation dynamics, radiation effects in materials, microstructure evolution, phase field method development, and computational methods for materials science and mechanics. Applicants with MS in mechanical, aerospace, or materials engineering, with background in microstructure science, continuum mechanics and elasticity, numerical methods or computational techniques such as finite element method are highly preferred. Knowledge of at least one advanced programming language such as Fortran or C++ is required. Exceptional applicants with BS degree will also be considered. The openings are for spring 2018, summer 2018 and fall 2018. Applicants must meet Purdue University and School of Materials Engineering admission criteria. For inquiry please send email to Professor El-Azab (aelazab@purdue.edu).

Ph.D. Student Positions in Computational Materials Science and Mechanics

Several Ph.D. student positions are available in Professor El-Azab’s group with the School of Materials Engineering, Purdue University. The group performs advanced theoretical and computational research in the areas of mesoscale plasticity and dislocation dynamics, radiation effects in materials, microstructure evolution, phase field method development, and computational methods for materials science and mechanics. Applicants with MS in mechanical, aerospace, or materials engineering, with background in microstructure science, continuum mechanics and elasticity, numerical methods or computational techniques such as finite element method are highly preferred. Knowledge of at least one advanced programming language such as Fortran or C++ is required. Exceptional applicants with BS degree will also be considered. The openings are for spring 2018, summer 2018 and fall 2018. Applicants must meet Purdue University and School of Materials Engineering admission criteria. For inquiry please send email to Professor El-Azab (aelazab@purdue.edu).

Ph.D. Student Positions in Computational Materials Science and Mechanics

Several Ph.D. student positions are available in Professor El-Azab’s group with the School of Materials Engineering, Purdue University. The group performs advanced theoretical and computational research in the areas of mesoscale plasticity and dislocation dynamics, radiation effects in materials, microstructure evolution, phase field method development, and computational methods for materials science and mechanics. Applicants with MS in mechanical, aerospace, or materials engineering, with background in microstructure science, continuum mechanics and elasticity, numerical methods or computational techniques such as finite element method are highly preferred. Knowledge of at least one advanced programming language such as Fortran or C++ is required. Exceptional applicants with BS degree will also be considered. The openings are for spring 2018, summer 2018 and fall 2018. Applicants must meet Purdue University and School of Materials Engineering admission criteria. For inquiry please send email to Professor El-Azab (aelazab@purdue.edu).

Ph.D. Student Positions in Computational Materials and Mechanics

Several Ph.D. student positions are available in Professor El-Azab’s group with the School of Materials Engineering, Purdue University. The group performs advanced theoretical and computational research in the areas of mesoscale plasticity and dislocation dynamics, radiation effects in materials, microstructure evolution, phase field method development, and computational methods for materials science and mechanics. Applicants with MS in mechanical, aerospace, or materials engineering, with background in microstructure science, continuum mechanics and elasticity, numerical methods or computational techniques such as finite element method are highly preferred. Knowledge of an advanced programming languages such as Fortran or C++ is required. Exceptional applicants with BS degree will also be considered. The openings are for fall 2018 semester but those who wish start in the spring or summer 2018 will be accommodated. Applicants must meet Purdue University and School of Materials Engineering admission criteria. For inquiry please send email to Professor El-Azab (aelazab@purdue.edu).

Ph.D. Student Positions in Computational Materials and Mechanics

Several Ph.D. student positions are available in Professor El-Azab’s group with the School of Materials Engineering, Purdue University. The group performs advanced theoretical and computational research in the areas of mesoscale plasticity and dislocation dynamics, radiation effects in materials, microstructure evolution, phase field method development, and computational methods for materials science and mechanics. Applicants with MS in mechanical, aerospace, or materials engineering, with background in microstructure science, continuum mechanics and elasticity, numerical methods or computational techniques such as finite element method are highly preferred. Knowledge of an advanced programming languages such as Fortran or C++ is required. Exceptional applicants with BS degree will also be considered. The openings are for fall 2018 semester but those who wish start in the spring or summer 2018 will be accommodated. Applicants must meet Purdue University and School of Materials Engineering admission criteria. For inquiry please send email to Professor El-Azab (aelazab@purdue.edu).

Ph.D. Student Positions in Computational Materials Science and Mechanics

Several Ph.D. student positions are available in phase field and mesoscale plasticity areas at Purdue University’s School of Materials Engineering. In addition to meeting all admission requirements, the ideal student would be one who is theory and computations oriented, with background in Fortran 90 and/or C++ skills and reasonable knowledge in mechanics and microstructure science of materials. Students with M.S. degree in mechanical engineering/mechanics, aerospace engineering/mechanics or in materials modeling and simulations are desirable for these position. To start in January 2018, a prospective domestic student needs to apply by the middle of October and an international student by October 1, 2017. For inquiry, please send email to Professor Anter El-Azab (aelazab@purdue.edu).

ahmed.hussein's picture

Surface roughness evolution during early stages of mechanical cyclic loading

The effect of crystal size and initial dislocation density on surface roughness evolution in FCC single crystals during the early number of cycles of mechanical cyclic loading is investigated using three dimensional discrete dislocation dynamics simulations. Crystals having size less than 2 μm show early development of surface slip localization, while larger ones show a more uniform distribution of surface steps. The surface roughness is found to increase with increasing number of loading cycles with larger crystals showing a high roughening rate compared to smaller crystals.

Cai Wei's picture

Postdoctoral Position Opening at Stanford University

Prof. Wei Cai at the Mechanical Engineering Department of Stanford University is seeking a postdoctoral researcher to lead a project on the modeling of dislocations in strained semiconductor structures.  The major task of this project is the development of an interface between the Dislocation Dynamics program (ParaDiS) with a general purpose Finite Element Method (FEM) program (such as ABAQUS).  Molecular dynamics simulations may be required to provide physical input to the Dislocation Dynamics model.

ahmed.hussein's picture

Microstructurally based cross-slip mechanisms and their effects on dislocation microstructure evolution in fcc crystals

Three newly identified cross-slip mechanisms from atomistic simulations of fcc crystals, namely surface, bulk and intersection cross-slip types, were hierarchically informed into discrete dislocation dynamics simulations. The influence of each cross-slip type on the evolution of the dislocation microstructure in face-centered cubic microcrystals having different crystal sizes and initial dislocation densities was investigated.

Amit Acharya's picture

From dislocation motion to an additive velocity gradient decomposition, and some simple models of dislocation dynamics

Amit Acharya         Xiaohan Zhang

(Chinese Annals of Mathematics, 36(B), 2015, 645-658.  Proceedings of the International Conference on Nonlinear and Multiscale Partial Differential Equations: Theory, Numerics and Applications held at Fudan University, Shanghai, September 16-20, 2013, in honor of Luc Tartar.)

Position is not any more available ---- Research position at TU Darmstadt, Germany

At the Division of Mechanics
of Functional Materials in the institute of Materials Science, TU Darmstadt the
following research position is to be filled as soon as possible:

 Research position (E 13 TV – TU
Darmstadt),
Postdoc/Doctoral Candidate

The position is
scheduled for three years.

Daniel Kiener's picture

In situ nanocompression testing of irradiated copper

Dear colleagues,

we recently published a paper on measuring bulk properties of irradiated copper from nanoscale samples:

http://www.nature.com/nmat/journal/vaop/ncurrent/full/nmat3055.html

Hope you find this interesting!

 

Daniel

Steffen Brinckmann's picture

Phd or Postdoc position on multiscale mechanics in Bochum/Germany

The Interdisciplinary Centre for Advanced Materials Simulation (ICAMS) is a new research centre at the 
Ruhr­University Bochum, Germany. At ICAMS an interdisciplinary team of scientists from engineering, 
materials science, chemistry, physics and mathematics is working on the development and application 
of a new generation of simulation tools for multi­scale materials modelling. 

Partial Dislocation Tutorial for FCC Metals

It is well known thatdislocations in FCC metals are composed of partial dislocations separated bystacking faults.  When consideringthe reactions of dislocations with each other, such as in DD simulations, it is necessary to determine therelative positions of the partials in order to correctly describe theconfigurations that are created in the reactions.  Here we describe a geometric method for correctly determiningthe relative positions of the partials. The results we obtain can also be found by applying an axiom, or rule,given in the book by Hirth and Lothe. At the end of this tutorial we

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