Prof. DANIELE FERRETTI

daniele.ferretti@unipr.it

Dr. Elena Michelini

elena.michelini@unipr.it

17 November 2021, 9:00-13:00 a.m. (CEST, UTC+2)

18 November 2021, 9:00-13:00 a.m.

19 November 2021, 9:00-13:00 a.m.

The course focuses on the application of the finite element method when dealing with structural analysis of (reinforced) concrete structures. The principal tools and techniques for the static non-linear modelling of different structural typologies are provided, with a spotlight on crack modelling, and failure analysis.

The course will give an in depth overview on the following topics:

- Second order effects and nonlinear analysis of RC frames

- Nonlinear constitutive models for RC plates and shells

- Modelling of “special” precast structures (thin walled roof elements, hollow core slabs).

Details of the course can be found at its Syllabus.

In the last lecture of the course (scheduled on 19 November), a seminar will be given by prof. Enzo Martinelli (Università di Salerno), on the topic “Theoretical models and numerical analysis of two-layer composite systems in partial interaction”.

Students interested in attending the course can register themselves up to November 15^th, by sending an e-mail to elena.michelini@unipr.it

The link for attending team meetings will be sent in due time the day before the beginning of the lessons.

Theoretical models and numerical analysis of two-layer composite systems in partial interaction

Two-layer composite systems are widely employed in structural engineering: composite beams coupling a concrete slab to either a steel joist or timber beams are probably the most common examples, but also other structural members can somehow be mechanically regarded as two-layer composite systems. As the two connected “layers” of those coupled members can generally “slip” on each other throughout their interface, the resulting kinematic condition is often referred to as “partial interaction”. Therefore, simulating the behaviour of the aforementioned two-layer composite systems in partial interaction is a relevant problem in structural mechanics, as it requires sufficiently general kinematic assumptions and specific stress-strain laws capable to capture the peculiar behaviour of materials both in the elastic and inelastic ranges. The present seminar aims at outlining the background and the mechanical assumptions adopted in the most common partial interaction models and pointing out the hierarchical relationships intercurring between them. Moreover, applications to various relevant case-studies, such as steel-concrete composite beams and FRP-strengthened RC beams, systems will be shown with reference to both their elastic and inelastic responses.

Enzo Martinelli is an Associate Professor of Structural Analysis and Design at the Department of Civil Engineering of the University of Salerno, Italy. He got the qualification to the role of Full Professor both in France (in 2013) and in Italy (in 2017). In the last twenty years he has been working on various subjects, among which the experimental characterisation and theoretical modelling of concrete structures, the seismic response of structure, the mechanics of fiber-reinforced composite materials.

More recently, he has been the Principal Coordinator Contact in the EU-funded projects “Environmentally-friendly solutions for Concrete with Recycled and natural components” (EnCoRe, FP7-PEOPLE-2011-IRSES, n. 295283) and “SUstainability-driven international/intersectoral Partnership for Education and Research on modelling next generation CONCRETE“ (SUPERCONCRETE, H2020-MSCA-RISE-2014, n. 645704). Co-author of almost 300 papers published in international journals and conferences, he has supervised and co-supervised a total of 12 PhD Theses. Dr. Enzo Martinelli is currently Associate Editor of the European Journal of Civil and Environmental Engineering.