The behaviour of tubular or cylindrical members under global bending is highly complex due to the interaction of several nonlinear phenomena including plasticity, buckling, ovalisation, and the influence of geometric imperfections, as well as non-uniform bending moment distributions and the common requirement to support local transverse loads. In Europe, such members are currently designed either as a hollow tubular section according to beam theory (EN 1993-1-1) or according to shell theory (EN 1993-1-6), depending on a slenderness limit governed by the diameter to thickness (d/t) ratio and steel grade. Unfortunately, the current design framework provides a very poor cross-section classification for tubular members due to overly conservative prescribed slenderness limits, which fail to distinguish between bending or axial compression and to recognise the different effects of length in both cases.
The successful candidate will be engaged in a challenging two-year programme to undertake a comprehensive series of parametric FE studies of cylindrical shells under the most common non-uniform bending moment gradient conditions, including the effects of varying boundary conditions, ovalisation, length-dependence, local load details and imperfections. The relationships will be characterised algebraically within the framework of EN 1993-1-6. A wealth of recent studies permits ample experimental verification. A successful project may see its rules adopted as official Amendments to EN 1993-1-6. This project will be supervised by Dr Adam Jan Sadowski.
Applicants must have a Bachelors and/or Masters degree (or equivalent) in a relevant area of engineering and hold, a PhD or equivalent in either structural, mechanical or aerospace engineering field. The ideal candidate must have the following skills and background:
Exposure to the theory and design of shell structures.
Proficiency in the Matlab and Python programming languages as well as data analysis and processing skills.
Advanced user of the ABAQUS FE software, preferably for performing nonlinear stability analyses.
A track record of peer-reviewed publications in leading international journals.
Potential candidates are encouraged to look at the ResearchGate profile of Dr Adam Jan Sadowski to get a good idea of the background publications to the project, and those willing to discuss this post informally are encouraged to contact him directly: firstname.lastname@example.org
*Candidates who do not have a PhD (or equivalent) will be appointed at Research Assistant level within the salary range £29,800 - £32,970 per annum
The preferred method of application is online via our website. http://www3.imperial.ac.uk/job-applicants (please select “Job Search” then enter the job title or vacancy reference number EN20160109FH into "Keywords"). Please complete and upload an application form as directed. Please include an up-to-date CV and details of two academic referees.