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Mission

The CONSTRUCT Laboratory at the School of Architecture, Civil and Environmental Engineering (ENAC), EPFL, led by Prof. David Ruggiero, is seeking two highly motivated PhD candidates to join a newly funded Swiss National Science Foundation (SNSF) project: “Multiscale Modelling of Cracked Reinforced Concrete: From Aggregate Interlock to Structural Assessment”. The positions are expected to start in early 2027 (or upon agreement).
The PhD research will focus on the development of a new framework for the mechanics-based assessment of cracked reinforced concrete structures, enabling engineers to directly incorporate observed crack behaviour (shape, width, slip) into structural analysis and evaluation. The project combines experimental testing, advanced sensing, and multiscale modelling, spanning from crack-scale behaviour to full structural systems.
Research activities include:
- Investigation of crack behaviour in concrete under complex loading conditions 
- Development of path-dependent constitutive models for crack interface mechanics (aggregate interlock) 
- Large-scale testing of reinforced concrete elements (panels, beams, walls)
- Development of analytical and numerical models for crack-based structural assessment 
- Integration of experimental data into practical engineering tools and simplified models 
The successful candidates will join the Concrete Behaviour and Structural Design Laboratory (CONSTRUCT), which focuses on the mechanics of reinforced concrete structures, with particular emphasis on:
- Experimental investigation of reinforced concrete behaviour 
- Development of mechanics-based models for structural response 
- Integration of research into engineering practice and design methods 
- Sustainable design and assessment of buildings and infrastructure 
The lab offers access to state-of-the-art experimental facilities, including large-scale structural testing systems (e.g., Panel Element Tester) and advanced instrumentation (e.g., Digital Image Correlation and Distributed Fibre Optic Sensing), as well as strong links to international collaborators and industry partners.

Main duties and responsibilities

As a PhD candidate, you will be expected to:
- Conduct cutting-edge research including experimental design, testing, data analysis, and modelling 
- Develop analytical and numerical models of the structural behaviour of cracked reinforced concrete
- Publish results in peer-reviewed journals and present at international conferences 
- Collaborate with academic and industry partners 
- Contribute to laboratory activities, including supervision of MSc students and teaching assistance 

Profile

- Master’s degree in Civil Engineering, preferably with focus on reinforced concrete structures (completed or expected before the employment start date)
- Interest in both experimental and analytical aspects of structural engineering
- Experience with large-scale structural testing, ideally using Digital Image Correlation and/or Distributed Fibre Optic Sensing
- Solid analytical and problem-solving skills 
- Programming experience (e.g., Python, MATLAB) and experience operating on large datasets
- Ability to work both independently and collaboratively 
- Strong communication skills in English (written and spoken) 

We offer

- A world-class research and training environment at EPFL 
- Competitive salary and excellent working conditions, 1-year fixed-term contract (CDD), renewable for 3 years (4 years in total) to complete your PhD
- Access to unique experimental infrastructure 
- Opportunities to publish in leading journals and present at international conferences 
- Collaboration with leading researchers and industry partners 
- A stimulating and international work environment in Lausanne 

Informations

  The selection process involves multiple stages, and short-listed candidates will also be requested to apply to the doctoral program in Civil and Environmental Engineering (EDCE). Applicants who have already applied to or been deemed admissible by EDCE should indicate this in their application. 
Only applications submitted through the online platform will be considered. You are asked to supply:
•    A motivation letter describing your research interests and experience (max. 2 pages)
•    A single PDF containing: Curriculum Vitae, Bachelor’s and Master’s academic transcripts, contact information for 2-3 referees
Application deadline: 30/09/2026
Contract start date: Early 2027 or upon mutual agreement
Activity Rate: 100%
Contract Type: CDD
Duration: 4 years
For more information, please contact: david.ruggiero@epfl.ch. No applications sent directly to this address shall be considered.