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ESIS's picture

Discussion of fracture paper #20 - Add stronger singularities to improve numerical accuracy

It is common practice to obtain stress intensity factors in elastic materials by using Williams series expansions truncated at the r^(-1/2)-stress term. I ask myself, what if both evaluations of experimental and numerical data is improved by including lower order (stronger singularities) terms? The standard truncation is done in a readworthy pape

Wenbin Yu's picture

ICME Prize

Co-sponsored by cdmHUB, NASA, and Rolls-Royce, the bi-annual AIAA Integrated Computational Materials Engineering (ICME) Prize) is open for submission. The best project will be selected and honored at SciTech conference. To participate, you need to submit a description of your project by June 29, 2018, which will be reviewed by the ICME prize committee. More details can be found at https://www.aiaa.org/icme/. If you are interested in submitting, please let me know. 

Automotive Interior- Mechanical Testing

Aesthetics and material durability are closely related in consumer-facing industries such as the automotive industry. In addition to designing an aesthetically pleasing interior environment, developers aim to create an interior with durable components to stand up to long-term use. This blog post covers the different mechanical tests used to ensure automotive interior parts pass the test for aesthetics, quality, safety, and durability.

Postdoc Positions Nonlinear Elasticty, Continuum Mechanics, Chile

The Superior Councils for Science and Technological Development of Chile (CONICYT) will call soon for the FONDECYT Postdoctoral Grants Competition.

The available grants are for 2 or 3 years. The applicants must have obtained their Doctorate degrees approximately not before January of 2015 and after the end of September of 2018 (the exact dates will appear in the page of the agency later on).

If there is a person interested in doing research in nonlinear elasticity and continuum mechanics with me as a sponsoring researcher, please feel free to contact me for further enquiries (rogbusta@ing.uchile.cl). My recent research interests are on the developing of some new constitutive models for elastic and inelastic bodies (especially for rocks), nonlinear magneto and electro-elasticity and also on the modelling of residual stresses in arteries. I do mostly theoretical work.

PhD position on modeling of additive manufacturing in CEMEF, MINES Paristech, France

PhD position for developing an efficient computational platform for additive manufacturing by multi-scale approach and model reduction technique under the framework of finite element and level-set formulation. The additive manufacturing process that will be considered is the SLM process (Selective Laser Melting) for metals.

Webinar - Simpleware Software for High-Value Part Inspection and Simulation-based NDE | June 28th

 

Join this webinar and see how Simpleware software adds value to the inspection and non-destructive evaluation of high-value, low-production-volume parts. Register to attend the live webinar or to watch a recording after the broadcast at your convenience.

marco.paggi's picture

PhD positions at IMT School for Advanced Studies Lucca, Italy

Dear Mechanician,

we are searching for excellent PhD candidates for the next 3-yrs PhD programme in Systems Science (Track Computer Science and Systems Engineering, research unit MUSAM on Multi-scale Analysis of Materials) of the IMT School for Advanced Studies Lucca (Lucca, Tuscany, Italy) to work on an interdisciplinary research topic across computational mechanics, materials science, optimization, and high-performance computing.

Deadline: August 3rd 2018 at 12.00pm (CEST)

h.yazdani's picture

MSc position in optimization at Howard University, Washington, DC

The Stout Infrastructure, Geotechnics, and Materials (SIGMa) Lab at Howard University, Washington, DC, invites applicants for a Master's position in optimization for Fall 2018. Highly-motivated, industrious individuals with a strong background in programming, geotechnics and structural analysis, adequate English proficiency, and the ability to work both independently and as part of a collaborative team are encouraged to apply.

Required qualifications 

What‘s the timing of calling a abaqus user subroutine?

Hi all,

 

The question is that is there any document about the timing of calling a user subroutine in ABAUQS? (i.e., UEXTERNALDB being called at the start/end of the analysis or current incerment, UMAT being called at the start of the increment and iteration). I had a document specifying these details for almost every subroutine by attaching them on the flow chart of ABAQUS analysis, but unfortunately I lost it. I wonder if someone happens to have this document or something like this and is willing to share it. Any help would be appreciated.

 

liebealt

Two PhD positions in Computational Mechanics at Mines ParisTech (CEMEF)

The group of Computational Solids Mechanics at CEMEF Mines ParisTech, in the French Riviera, is seeking two candidates for Ph.D. positions. The appointment is starting on October 1st 2018.

The research topics are related to :

- 3D Numerical modelling of Ductile Fracture
- Numerical modelling of sheet-like materials under complex loading paths

Interested applicants can send a resume to

Fan Xu's picture

Roll up your sleeves

When you push up your sleeves, wrinkles form, which eventually evolve into ridges (pictured). As familiar as you may be with this phenomenon, have you ever thought about its underlying mechanism? It involves the complex nonlinear mechanical behaviour of large deformations and surface instabilities, which in turn give rise to a sophisticated morphological evolution. And now, Yifan Yang and co-workers have revealed a hitherto unknown post-buckling behaviour that involves multiple bifurcation transitions (Phys. Rev.

Postdoctoral vacancy (3 years) on high-frequency vibration techniques for non-destructive inspection of 3D printed metal parts

 

The use of 3D printed metal structures is taking a very fast ramp-up in industry. General Electric has demonstrated the possibility of printing titanium fuel injectors for their LEAP engine, EADS has printed a nacelle hinge bracket for the Airbus A320, Boeing is printing plastic inlet ducts for high-altitude aircrafts, hip implants and other prosthetics are exploiting the design freedom of additive manufacturing (AM),...

PhD vacancy (4 years) on fatigue testing of composites with advanced instrumentation

Composites are used more and more as structural components in aerospace industry, automotive sector, wind energy applications,… As a consequence, the loads on those composite components are much higher than for secondary components, and can lead to fatigue damage in the composite part. Moreover, the fatigue behaviour of fibre-reinforced composites is much more complex than that of metals, because of the many different fibre/polymer combinations, the heterogeneous nature of the composite, the anisotropic behaviour of the composite and the multitude of damage mechanisms.

Yaning Li's picture

Ph.D and Post-doc Positions Open

Ph.D and Post-doc positions are open in 'Mechanics, Biomimetics, and 3D Printing' lab at the University of New Hampshire.

For application, please directly send CV to: yaning.li@unh.edu

More information can be found at: http://www.unh.edu/yaning-lab/

yann.charles's picture

2 years PostDoctoral Position - Universities Lille & Paris 13 , Paris, France

2 years post Doctoral position is avalaible in France, on material science numerical modeling fields. This is a join project between Univ. Lille (UMET lab), Paris 13 (LSPM lab), CEA (IRFM lab) and Marseille univ. (PIIM lab).

The present postdoc subject is focused on the modeling of the interactions between impurities (H, He...) and tungsten. 

Chengyu Li's picture

PhD position in Computational Fluid Dynamics at Villanova University

A Ph.D. position is available at Villanova University, Department of Mechanical Engineering, to conduct numerical simulations of biological and physiological flows. Financial support for tuition and stipend will be provided. The ideal candidate is expected to have a strong background in numerical methods and programming skills. Previous in-house code development experience is strongly preferred. The candidate is expected to start in spring/fall 2019, but the highly qualified candidate is also welcome to begin in fall 2018. 

mokarram76's picture

Fully funded PhD position in Swansea University, UK

Hi

PhD Scholarship  in the field of: Mechanical Engineering/Computational Engineering/Polymer Sciences/Material Engineering/Material Sciences. It is a fully funded PhD scholarship for UK/EU citizens only.

http://www.swansea.ac.uk/postgraduate/scholarships/research/engineering-...

Jamie Guest's picture

Postdoc Position at Johns Hopkins in Image-Guided Design of Personalized Biomedical Components

The Whiting School of Engineering and School of Medicine at Johns Hopkins University invite applications for a Postdoctoral Fellow research position exploring innovation in the design and development of orthopaedic components.

Ramathasan Thevamaran's picture

Postdoctoral Research Associate Position at the University of Wisconsin-Madison, Madison, WI.

A Postdoctoral Research Associate Position is available in Professor R. Thevamaran's laboratory at the Department of Engineering Physics to study the dynamic behavior and properties of nanostructured metals and hierarchical materials. A strong background in experimental solid mechanics and materials science is required for this research.

ktramesh's picture

Research Professor position at Johns Hopkins (all levels)

RESEARCH FACULTY POSITION (all levels)

Hopkins Extreme Materials Institute Johns Hopkins University

Emerging Areas of Mechanics, Materials, and Structures

kamrankhan026's picture

Postdoctoral Position Available at Khalifa University: Composite Manufacturing and Multiscale Modeling

A Postdoctoral Research Fellow position is available immediately in the aerospace department at the Khalifa University of Science and Technology in Abu Dhabi in United Arab Emirates. The research project focuses on Composite materials and manufacturing, Autoclave/out of autoclave techniques, LCM, constitutive and multi-scale computational modeling of the viscoelastic and other inelastic behavior of composites.

kamrankhan026's picture

Postdoctoral Position Available at Khalifa University: Composite Manufacturing and Multiscale Modeling

A Postdoctoral Research Fellow position is available immediately in the aerospace department at the Khalifa University of Science and Technology in Abu Dhabi in United Arab Emirates. The research project focuses on Composite materials and manufacturing, Autoclave/out of autoclave techniques, LCM, constitutive and multi-scale computational modeling of the viscoelastic and other inelastic behavior of composites.

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