Scientific research is conducted by 6 research teams along with 3 teams for technical support and one team for administrative support. The research relates to materials and structures of civil engineering, environment and sustainable development, geotechnics, energy and transport.
The scientific project of Navier focuses on the following objectives :
Innovative materials and structures for construction
Security and durability of structures
These objectives emerged in the context of the current ecological crisis which calls for a new reflection about the materials, structures and infrastructures used in construction and civil engineering. The ultimate goal is to favor a sustainable use of natural resources while taking into account the environmental constraints (pollution, global warming, …). In addition, the life span of existing structures should be extended by repairing them, by controlling their aging factors, and by preventing natural disaster (seism, drought, flood, …). The laboratory is conducting many research on other issues related to environment (depollution, oil and gas well cementing…) and underground storage (nuclear wastes, CO2, …).
Along with those applied topics, the laboratory is developing research on methodologies that benefit all applications. This research is divided into seven categories :
Experimental characterization at the scale of the microstructure
Experimental identification of macroscopic behavior laws
Real scale tests and prototypes
Multi-scale approach of heterogeneous materials and structures
Advanced methods for structural analysis and identification
The first three categories relate to experimental research at the scale of the microstructure (first category), of the representative elementary volume (second category), and of the structure (third category). The other categories relate to modeling and numerical simulation.
The laboratory conducts both theoretical and numerical research, but also experimental research. They are worked out using larges facilities (Nuclear Magnetic Resonance imaging, X-ray microtomograph, annular simple shear apparatus, calibration chamber…) and demonstrators (footbridge in composite materials, grid-shells, wood-concrete composite structures…).
The teaching provided by the laboratory is closely related to the research and production of knowledge, and covers a wide range of applications in mechanics. Navier is involved in many national and international collaborations with public and private institutions. For instance, Navier develops preferred collaborations with leading industrial partners within the framework of teaching and research chairs (Lafarge, Saint-Gobain, Bouygues, Vinci, EDF, Eurotunnel, CO2 chair, …).