Dynamic Behaviour of Offshore Anchors

Analysis of dynamic behaviour of offshore anchors for floating structures

Degree type

PhD

Closing date

10 October 2022

Campus

Hobart

Citizenship requirement

Domestic/International

About the research project

Offshore mooring and anchoring systems are frequently implemented to support floating structures, including wind turbines and aquaculture systems where pile structures are unsuitable.  As wind, wave, and ocean current loading regimes can impact the performance of offshore geotechnical anchoring systems, understanding the impact of monotonic and cyclic loading on anchor bearing capacity is a vital component of offshore engineering design and analysis.  In the case of large storm events, the stability of offshore structures can be compromised due to the cyclic degradation of soils providing anchor support.

This research will focus on the advanced constitutive behaviour of offshore clays combined with three-dimensional geotechnical finite element method simulation to consider the long-term behaviour of anchors and moorings.  The impacts of cyclic accumulation will be assessed due to water and wind loads transferred from the structure to the anchoring system.   As the resulting accumulation of shear strains and pore water pressure can impact the shear strength of the soil and the stiffness, the performance of anchoring systems under various storm loading conditions will be central to the project.  Consequently, the research aims to discover the underlying mechanical soil characteristics and processes controlling the bearing capacity of offshore anchor systems.

Primary Supervisor

Meet Dr Ali Tolooiyan

Funding

Applicants will be considered for a Research Training Program (RTP) scholarship or Tasmania Graduate Research Scholarship (TGRS) which, if successful, provides:

  • a living allowance stipend of $28,854 per annum (2022 rate, indexed annually) for 3.5 years
  • a relocation allowance of up to $2,000
  • a tuition fees offset covering the cost of tuition fees for up to four years (domestic applicants only)

If successful, international applicants will receive a University of Tasmania Fees Offset for up to four years.

As part of the application process you may indicate if you do not wish to be considered for scholarship funding.

Eligibility

Applicants should review the Higher Degree by Research minimum entry requirements.

Additional eligibility criteria specific to this project/scholarship:

  • Applicants must be able to undertake the project on-campus

Selection Criteria

The project is competitively assessed and awarded.  Selection is based on academic merit and suitability to the project as determined by the College.

Additional essential selection criteria specific to this project:

  • Applicants from the following disciplines are encouraged to apply:
    • Civil Engineering
    • Mechanical Engineering

Application process

There is a three-step application process:

  1. Select your project, and check you meet the eligibility and selection criteria;
  2. Contact the Primary Supervisor, Dr Ali Tolooiyan to discuss your suitability and the project's requirements; and
  3. Submit an application by the closing date listed above.
    • Copy and paste the title of the project from this advertisement into your application. If you don’t correctly do this your application may be rejected.
    • As part of your application, you will be required to submit a covering letter, a CV including 2 x referees and your project research proposal.

Following the application closing date applications will be assessed within the College. Applicants should expect to receive notification of the outcome by email by the advertised outcome date.

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