Laboratory for the Study of Microstructures and Mechanics of Materials

LEM3 is an academic research laboratory whose missions are threefold: to manage research projects in mechanics and materials, to promote the results of this research and to contribute to university education and continuing education through and for research.

A mixed research unit of 250 people

LEM3 is a joint research unit (UMR) attached to the Université de Lorraine, the CNRS and Arts et Métiers. It is part of the Matter, Materials, Metallurgy, Mechanics (M4) scientific pole of the Université de Lorraine.
At the CNRS, its main institute is CNRS Engineering and its secondary institute is CNRS Chemistry. Finally, it is attached to the Carnot ARTS Institute supported by Arts et Métiers.

LEM3 brings together around 250 people including 150 permanent staff (11 researchers, 105 teacher-researchers, 45 administrative and technical staff) and more than 80 doctoral and post-doctoral students.

A multi-site laboratory in the heart of Lorraine

The main LEM3 building is located in Metz, on the Technopôle university campus. In addition to this building, staff and equipment are based in the buildings of the Associated Franco-German Innovation and Research Center of Metz (CIRAM), Arts et Métiers and the National School of Engineers of Metz (ENIM).

Other research teams are based in Nancy on the premises of the University Polytechnic School of Lorraine (Polytech Nancy) and the National School of Electricity and Mechanics (ENSEM Nancy). Finally, a research team is hosted at the Institut Supérieur d’Ingénierie de la Conception (INSIC) in Saint-Dié-des-Vosges .

A major force in research in the mechanics of materials and processes

LEM3 is a major force in research in the mechanics of materials and processes. Its experimental and theoretical activity is transdisciplinary, combining solid mechanics, metallurgy, materials science, chemistry and physics. It is organized within three scientific departments: (1) Mechanics of materials, structures and life, (2) Engineering of microstructures, processes, anisotropy, behavior, (3) Thermomechanics of processes and tool-material interactions.

Added to this are three technological platforms offering cutting-edge equipment to support our research activities: MécaRhéo , MicroMat and Procédés.
By maintaining the balance between fundamental and applied approaches, the laboratory ensures high visibility of its cutting-edge research and effective transfer of academic knowledge to industrial partners.

Industrial partnerships

partner companies

Scientific publications

articles published annually in peer-reviewed journals

Thesis

thesis defended each year

Internationally

partner countries within the framework of academic collaborations

Research projects in response to major societal challenges

Our research projects are focused on major societal challenges, in the field of energy, ecological and digital transition and in health.
The objective is to develop increasingly efficient, intelligent, bio-sourced and recyclable materials by relying on innovative processes such as additive manufacturing. The exploitation of artificial intelligence tools will be an important lever for developing these materials of the future. The LEM3 is also a member of CaMéX-IA Grand Est, one of the nine Campus des métiers et des qualifications in the Grand Est region in the Grand Est region, whose aim is to create a network and provide training in the use of artificial intelligence and digital technology in industry, building and construction.
The scope of this research covers many areas:

  • transport with lighter structures and durability of materials,
  • energy where materials play a crucial role for the production and storage of renewable energies but also for the safety of installations,
  • health, serving the improvement of surgical procedures in a reinforced dialogue with stakeholders in the medical field.