Predicting foundation response for offshore wind turbines Supervised by Britta Bienen, Conleth O’Loughlin
The aim of this research is to predict the installation and in service response of suction buckets supporting offshore wind turbines. This foundation concept is now being adopted in offshore wind farm designs. Following self-weight penetration into the seabed, the bucket is installed by pumping water out of the bucket, which creates a pressure differential across the lid and drives further penetration. In service, the foundation needs to resist the cyclic loading imposed on the turbine from the ocean environment. The mechanisms of suction installation (in layered soils in particular) and the effects of the installation process on the soil state are poorly understood. The evolution of foundation stiffness and displacement underpin the design. The research will be predominantly experimental, utilising recently developed purposedesigned experimental facilities. The project is a collaboration with Lloyd’s Register EMA and Melbourne University.
Applications are invited for a postdoc position at the University of Twente (Netherlands), within the Multiscale Mechanics group. We are seeking an enthusiastic researcher with interests in geomechanics, acoustics and/or computer modelling to work on Optimization of acoustic metamaterials using DEM and Machine Learning, founded by the Netherlands Organisation for Scientific Research (NWO). The position is for 1 year, starting as soon as possible.More information and application link in the website
I have just returned to Springer proofs of my new book “Modelling of Soil Behaviour with Hypoplasticity – Another Approach to Soil Constitutive Modelling“. It will probably still take few weeks before the book is published, it is however already now available for preorders at: https://www.springer.com/us/book/9783030039752
In Part I of the book, I first describe principles of hypoplasticity using simple 1D and 2D versions, which are straightforward to follow. This is demonstrating how two primary properties of hypoplasticity – non-linearity and asymptotic behaviour – are incorporated in the models. This demonstration is accompanied with explanation of experimental evidence on soil behaviour and with a brief overview of other possible modelling approaches. Then, full tensorial formulation of hypoplastic models is described and explained. In Part II, two specific models are introduced: model for sand and model for clay. They are described in detail and it is explained how to properly calibrate material parameters. Finally, advanced extensions of the models are covered, aimed to predict the effects of small strain stiffness and cyclic loading effects, effects of structure, rate effects, stiffness anisotropy, partial saturation and thermal effects.
The Bureau of ALERT Geomaterials has decided to fund the Ioannis Vardoulakis PhD Prize 2019. Since 2016, the PhD prize is entitled Ioannis Vardoulakis PhD Prize to commemorate Prof. Vardoulakis and his contributions to research and teaching in the field of Geomechanics.
The participation to the prize is open to all the PhD students coming from institutions belonging to ALERT, that have discussed their PhD thesis in 2018. The deadline for the applications is 31st March, 2019. The application procedure has to be done completely online via the application form
Develop a non-destructive rock characterisation methodology.
Carry out innovative, impactful research of strategic importance to CSIRO.
Kick-start your research career at Australia’s premier research organisation!
As the Postdoctoral Fellow, you will develop a novel non-destructive rock characterisation methodology, in collaboration with Curtin University (Western Australia) and Duke University (USA), using a multiphysics theoretical and numerical framework based on geomechanical laboratory experimentation.
Postdoctoral Research Positions of Geohazards/ Sedimentology/Geomorphology/Geotechnical Engineering¨C 2019 CALL
The State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (SKLGP), Chengdu University of Technology, Chengdu, Sichuan, China, is seeking several full-time Postdoctoral Research Fellows to join the research group on landslide hazard assessment as well as paleo-seismic and climatic events reconstruction through lacustrine sediment. The posts are fixed-term for 24 months, with possibility of renewal up to three years and recruitment of permanent research staff, starting as soon as possible thereafter. The successful candidates will join an international research group with collaborations with many universities and institutes of UK, Netherlands, Belgium, Germany, New Zealand, Japan etc. We are looking for the following research profiles:
The Charles E. Via, Jr. Department of Civil and Environmental Engineering (CEE) at Virginia Tech invites applications for a tenure-track faculty position in Geotechnical Engineering effective January 2020. The position is anticipated to be filled at the rank of Assistant or Associate Professor, but exceptional candidates will be given consideration for the Full Professor rank. A Ph.D. degree in Civil Engineering or a closely aligned field is required. Registration as a Professional Engineer (PE), or completion of the FE examination with plans to pursue PE registration, and professional experience are desirable but not required. Evidence of scholarship, research, and a record of external funding is required for consideration of appointment at the Associate and Full Professor levels.
The State Key Laboratory of Geohazard Prevention and Geoenvironment Protection (SKLGP), Chengdu University of Technology, Chengdu, Sichuan, China, is seeking several full-time Postdoctoral Research Fellows to join the laboratory research groups on experimental soil mechanics and rock mechanics. The posts are fixed-term for 24 months, with possibility of renewal up to three years, starting as soon as possible thereafter. The interviews of the selected candidate will be held around 1st of March, 2019.
This workshop, organised by the CNRS and University of Montpellier in collaboration with the University of Leeds and INRA-Montpellier, is intended to bring physics and engineering communities together to focus on challenges and new scopes in modelling powders and granular materials and their characterisation. The 2-day workshop programme will be composed of several invited talks as well as contributed talks.
The deadline for abstract submission is 31 January 2019.
In support of the research programme related to the safe disposal of nuclear waste, KU Leuven, SCK•CEN and PSI are looking for a PhD candidate for following topic:
Diffusion of gases in desaturated clay-based materials
The main aim of the PhD is to investigate how desaturation influences the diffusive properties of the samples for gases. This will be accomplished by performing diffusion experiments on different clay-rich materials (e.g. Boom Clay, Opalinus Clay, bentonite, sand-bentonite mixtures, …) at different degrees of saturation (but still highly saturated to avoid a continuous gas pathway), using different gases (He, Ne, CH4, C2H6). Different methods to perform transport experiments under desaturated conditions exist (e.g. osmosis method, saturated salt method …), but none of them has been used to measure diffusivity of dissolved gases. Diffusivity data will be complemented with a full petrophysical characterisation of all samples in order to assess the effect of changing petrophysical properties on diffusivity, and to compare the observations to those of fully saturated samples. The PhD will be executed in the international context of the EC-EURAD project, with close collaboration between SCK-CEN and the Paul Scherrer Institute (PSI, CH) and other partners involved in EURAD.
More information on the topic & how to apply can be found in this link
For further details, please contact Dr. Elke Jacops (firstname.lastname@example.org)