موقعیت‌های خالی در دانشگاه‌های خارج از کشور (رعایت قوانین پست اول الزامی است)

[rmojtaba]

PhD Position Process Simulation of Laser Assisted Additive Manufacturing
University of Twente, Netherlands
Deadline: September 15, 2015

Residual stresses and distortions can be predicted using numerical simulations but the calculation time for a straightforward finite element calculation is enormous, even for the simplest test geometries. The challenge in this project is to develop reliable and computationally tractable process models that can predict distortions and residual stresses in full scale components. This project, which goes by the acronym TopAM, is a collaboration between University of Twente (UT), TU Delft and industrial research institutes TNO and NLR. You will develop efficient simulation methods for the prediction of residual stresses and product geometry in laser assisted additive manufacturing. A second PhD student at TU Delft will use your methods as a basis for topological optimization of parts manufactured by AM.

Your profile
You have obtained a MSc. degree in mechanical engineering or a related discipline with a specialization in non-linear solid mechanics. A strong background in mathematics and computational modelling is required. You have experience with programming languages like Fortran or C++ and scripting languages like Python.

For more information on the research at the Nonlinear Solid Mechanics chair of the MS3 department, please visit http://www.utwente.nl/ctw/tm/. Additional information about this specific vacancy may be obtained from Dr. Bert Geijselaers, h.j.m.geijselaers@utwente.nl

Source: http://www.utwente.nl/en/organizatio...acature/312319

[rmojtaba]

PhD position Modelling coupled geomorphologic-biologic evolution of offshore sandwaves
University of Twente, Netherlands
Deadline: September 7, 2015

The project will provide the knowledge and tools (combined in an interactive SANDBOX) required for the design and implementation of sustainable offshore operations. Strong cooperation with end users from the private sector, government and non-governmental organizations is embedded in the project via several implementation cases where offshore operations are planned.
PhD-project Modelling coupled geomorphologic-biologic evolution of offshore sandwaves. The task of this PhD is to come up with an idealised mathematical model for sandwaves coupled with benthic organisms giving insight in dynamics of the coupled system, as well as a more complex numerical coupled model to be applied in practical cases, e.g. sandmining or the design of pipeline trajectories.

Your profile
We are looking for a talented, enthusiastic researcher with an active attitude and broad interests covering seas and mathematical modelling. Experience with modelling morphodynamics and-or biologic evolution is an advantage. Excellent writing skills are also highly welcome. Candidates should hold, or soon obtain, an MSc degree in Civil Engineering, Mechanical Engineering, Mathematics, Physics , mathematical ecology or a related field. A good command of the English language is necessary. comprehension of the Dutch language is beneficial. Some of the desired skills can be acquired during an individual training programme of 840 hours that is part of the PhD project.

More information and application
For more information about this vacancy you can contact Dr. Bas Borsje, telephone +31 53 489 1094 , e-mail: b.w.borsje@utwente.nl. More information about the department is available at www.wem.ctw.utwente.nl. The start of the project is planned fall 2015. Candidates that expect to graduate fall 2015 or shortly hereafter are also invited to apply. Please send your application: motivation, a curriculum vitae, transcript (list with grades of courses attended), references and, if applicable, a list of publications before September 7th 2015 through the link below.

Source: http://www.utwente.nl/en/organizatio...acature/312322

[rmojtaba]

PhD position Thermomechanical simulation of inhomogeneous deformations during sheet metal forming
University of Twente, Netherlands
Deadline: September 15, 2015

The main goal in this project is to develop a physically based thermomechanical constitutive model that can predict formation of inhomogeneous strains and inhomogeneous microstructures as a consequence of the material behavior associated with the yield point phenomenon.
An insight on the microstructural aspects of the yield point phenomenon will be sought which will lead to the development of a physically based material model to be implemented in existing non-linear Finite Element software. The developed model will incorporate thermal as well as mechanical aspects of the phenomenon. Use of a material model that inherits softening will cause physical (i.e. Lüders bands) and numerical localization (i.e. mesh dependency) during simulation of the deformation process. Therefore for the simulation the mesh dependency has to be solved using non-local formulations or regularization approaches, meanwhile obtaining inhomogeneous patterns with certain length-scale.
This project, which goes by the acronym ‘SIMdisq’, is a collaboration between University of Twente (UT) and industrial partner Tata Steel Europe. You will report on your research during bi-weekly meetings of your research group and regular meetings of the SIMdisq project. You are expected to present your results at international scientific conferences and publish them in academic literature.

Your profile
You have obtained a MSc. degree in Mechanical Engineering or related discipline with special interest in solid mechanics and materials science. Prior knowledge in nonlinear solid mechanics and computational methods is required.
We welcome candidates with strong communication skills who like to present their work at conferences and (project) meetings. Fluency in English is required, both spoken and written. You need to provide IELTS test results (minimum score 6.5), TOEFL-iBT (minimum score 90) or Cambridge CAE or CPE. Some comprehension of the Dutch language and some teaching experience are beneficial.

Information and application
For more information on the research at the Nonlinear Solid Mechanics group and the MS3 department, please visit http://www.utwente.nl/ctw/ms3/ . Additional information about this specific vacancy may be obtained from Dr. Semih Perdahcıoğlu, e.s.perdahcioglu@utwente.nl

Source: http://www.utwente.nl/en/organizatio...acature/517743

[rmojtaba]

PhD Position in Climate Dynamics
ETH Zurich, Switzerland
Deadline: 14 Sep 2015

We seek a knowledgable and motivated scientist for a PhD project in one of the most exciting and important areas of the climate sciences: improving the mechanistic understanding of clouds and boundary layers and developing better representations of their turbulent dynamics in climate models. Depending on the interests of the doctoral student, the project may include analyses of space-based measurements of cloud properties, systematic numerical studies with large-eddy simulations, or theory development aimed at improving closures for the turbulence in clouds and boundary layers that can be used in climate models.

The position requires a Master degree or equivalent in physics, mathematics, the atmospheric sciences, or a related field. A solid background in mathematics and physics is more important than prior experience in the atmospheric sciences or in cloud and boundary layer dynamics. Experience in computer programming and data processing is helpful. The working language in our team is English, so excellent spoken and written English is required.

Further information is available at www.clidyn.ethz.ch and from Prof. Dr. Tapio Schneider by e-mail tapio@ethz.ch (no applications). Salary is according to ETH guidelines, with funding for 3 years guaranteed, and the possibility of an extension beyond this period if necessary for the completion of the PhD. The start date for the position is on or before January 1, 2016.

Source: https://pub.refline.ch/845721/4101/++publications++/1

[ali728]

PhD scholarship at Curtin University, Australia -Structural Engineering; Civil Engineering

LINK
The candidate will work with Prof. Hong Hao and Dr. Wensu Chen in the area of structural Engineering on an Australia Research Council (ARC) Linkage project.
Please refer to http://civil.eng.curtin.edu.au/peopl...x.cfm/Hong.Hao and http://civil.eng.curtin.edu.au/peopl...cfm/Wensu.Chen for more information about Prof. Hao and Dr. Chen's research work
Bachelor degree (first class honours or upper second class honours) in Civil Engineering or related fields, and language requirement (IELTS, Overall 6.5, Speaking, Writing, Reading and Listening 6.0); or TOEFL 79
Applicants with Master degrees with technical publications and research experiences in structural engineering are preferred.
Three years, fixed term, annually AUD30,000 for tuition and AUD25,000 for living allowance
To apply, please contact Dr Chen with a resume at wensu.chen@curtin.edu.au.

[ali728]

Ph.D. position(s) in the Atomistic and Multiscale Mechanics Group at the Iowa State University

LINK

Graduate student applications are invited for PhD positions in the Atomistic and Multiscale Mechanics Group in the Department of Aerospace Engineering at the Iowa State University. Self-motivated students in the area of theoretical, computational and applied mechanics, computational materials science, or condensed matter physics are encouraged to apply. Research topics cover multiscale simulation of dislocation, fracture, phase transformation and heat transfer in materials. Individuals who have research experience in one or more of the following areas are especially desired:

• Continuum Mechanics
• Advanced Finite Element Method (not just using software)
• Molecular Dynamics, LAMMPS, GULP
• Dislocation Dynamics, Phase Field Modeling, XFEM, Crystal Plasticity, Boltzmann Transport Equation
• Multiscale Modeling of Materials
• FORTRAN, C++, OpenMPI

To apply for the position, please submit a single PDF file via email (lmxiong@iastate.edu) with (i) your most recent CV; (ii) a research statement; (iii) any relevant courses taken, as well as (iv) a list of three references. Please name your file “FirstName.LastName.pdf”. The detailed information about the PI can be found at: http://www.aere.iastate.edu/departme.../liming-xiong/

[rmojtaba]

PhD position: LB modeling of colloid drying to create nanoporous structures
Swiss Federal Institute of Technology, Switzerland

We are looking for a highly skilled and motivated candidate to work with a two-phase lattice Boltzmann model, developed in collaboration with Los Alamos National Laboratory (USA), to simulate liquid configuration and particle deposition during drying of colloidal suspensions within porous media. Effects of liquid, solid surface and nanoparticle properties and boundary conditions on the resulting nanoporous structures are studied. As application, in collaboration IBM Research Zurich, heat transport in the thermal nanoporous underfills of electronic chips will be optimized. Additional benefits: we offer an exciting position in a worldwide top-ranked university, outstanding infrastructure and direct access to the international scientific community. Zurich has been consistently ranked number one among all cities worldwide for quality of life.

The candidate should have a master degree in Mechanical, Civil or Material Engineering, Physics or equivalent., a strong knowledge of heat and mass transport processes in porous materials and aprofound experience with numerical modeling, and preferentially lattice Boltzmann modeling. The candidate should be proficient in English.

For further information please contact Prof. Dr. Dominique Derome, dominique.derome@empa.ch

Applications with a cover letter, a comprehensive cv, a letter of interest and names and addresses of references should be sent online (apply now below) with attention to: ETH Zurich, Mr. Matthias Steiger, Human Resources, CH-8092 Zürich

Source: https://pub.refline.ch/845721/4077/+...+/1/index.html

[rmojtaba]

PhD position: Developing process and machine equipment for selective laser melting of advanced metals and metal-based composites
Katholieke Universiteit Leuven, Belgium
Deadline: Sat, 31 Oct 2015

Project
To strengthen the AM group we are looking for a PhD researcher. He/she is expected to be part of a team working on a 4-year project to elucidate and overcome the processing challenges of the selective laser melting (SLM) process in order to fabricate a wide variety of novel metallic-based materials. This means a wide range of tasks from machine tool development to process optimisation (scanning strategy, used parameters, etc.) and materials characterisation. Within the machine development adjusting the build platform and/or tuning the absorption of the metal phase will be considered. For the process optimisation, the material-laser interaction and effective parameters will be studied. And finally for material characterisations, various metallurgical and mechanical tests will be carried out.

Profile
We are looking for an enthusiastic and creative doctoral researcher with: A master degree in mechanical engineering, materials engineering or the like,Good grades, Good communication
,skills (oral and written), Open character,Expertise in AM and/or high power lasers is a plus, but not necessary

Source: https://icts.kuleuven.be/apps/jobsit...tures/53412745

[rmojtaba]

PhD student on the physics of adhesion to wet and icy surfaces
Eindhoven University of Technology, Netherlands
Deadline: Wed, 14 Oct 2015

It is well known that gecko lizards can walk upside down on a ceiling. An elegant way of catching them is to spray them and the ceiling with water, which significantly reduces the effective adhesive forces. While this may be an elegant solution for zoologists, it provides a problem in a different context: conventional adhesive labels hardly stick on wet or icy surfaces. This is mainly because of two reasons: 1) the presence of water reduces the Van der Waals interaction between the adhesive and the target surface by approximately a factor of 10 and 2) water is effectively incompressible and prevents the surfaces to get in contact with each other. Existing commercial strategies for applying adhesive labels on moist targets focus on the removal of the water by means of porous layers or by means of hydrophilic, water-soluble additives that absorb the water. However, no commercial solution is available/known for improving adhesion on ice-covered objects, such as bloodbags and frozen goods removed from a refrigerator.
Due to the complexity of the problem, no quantitative physical models for optimizing adhesion to wet and icy surfaces have been developed, yet, and detailed understanding of the microscopic processes and underlying mechanisms remains elusive. For this reason, we propose to conduct a systematic and quantitative investigation, based on experiments and numerical simulations, of the use of micropatterned adhesive layers, which comprise a pressure-sensitive adhesive (PSA) with a low glass-transition temperature as well as hydrogels. The latter represent a well-studied and mature material system, that can absorb multiples of their dry volume of water and for which material properties can be adjusted predictably over a large range by varying the polymeric constituents and the cross-link density. For proper adhesion, the water/ice layer needs to be thinned far below 10 nm, which renders this project a true nanofluidic and multidisciplinary challenge.

Job requirements
Candidates with a background in physics, chemical or mechanical engineering or physical chemistry are encouraged to apply. The position is part of the Horizon-2020 Marie Sk³odowska-Curie Initial Training Network BioSmart Trainee (full title: Training in Bio-Inspired Design of Smart Adhesive Materials) and is open to candidates who have obtained their MSc degree no more than 4 years ago and who did not reside within the Netherlands for more than 12 months in the past 3 years. Applicants must not hold a PhD degree.

Source: http://jobs.tue.nl/en/vacancy/phd-st...es-229373.html

[rmojtaba]

PhD Scholarship – Temporary Corrosion Protection of New Generation Magnesium Alloys
The University of Queensland, Australia
Deadline: Sun, 20 Sep 2015

The role
The UQ Rail Mechanics group lead by A/Prof Paul Meehan are working with Bombardier Transportation Australia on a challenging project to design, develop and test a new optimised predictive maintenance system for axle bearings using mechanics based modelling. The algorithms will incorporate state of the art tribological mechanics for bearing wear and grease degradation that will be tested and tuned using UQ's unique two disk rolling testrig. The validated algorithms will then be used to determine the optimum conditions for the bearings to enable a potential 20% increase in overhaul periodicity leading to several tens of millions of dollars in saved maintenance costs.

The person
Applicants should have a degree in Mechanical Engineering or equivalent in Mathematics or Science, with an interest in modelling and/or optimisation. The candidate must have excellent communication skills in terms of both written and spoken English language expression.

Enquiries
Enquiries related to this position should be directed to Associate Professor Paul Meehan: meehan@uq.edu.au

Source: http://jobs.uq.edu.au/caw/en/job/497...ng-scholarship