Mathis Dupuy, PhD student (15 Oct. 2025)
E-mail : mathis.dupuy at etud.univ-tln.fr
Bio
-SeaTech Engineering School, option Mechanical Innovation for Sustainable Systems (Imecad)
Supervision
- Thesis supervisor : Dominique MILLET, professor, UTLN/COSMER
- co-supervisor : Myriam ORQUERA, Assoc. prof., UTLN/COSMER
Funding: AID co-funded by Naval Group
PhD topic
Title : Methodology for designing parts produced by Additive Manufacturing – ARMEE.
In the naval MCO (maintenance in operational condition) sector, there is a strong need to be able to repair/replace heavily used parts quickly (on site), at low cost, and without excessive environmental impact. Today, many ships are already equipped with FDM-type additive manufacturing machines, which can be used to produce polymer spare parts, but their use is limited to parts with low mechanical strength and small dimensions (around 30cm x 30cm x 30cm). Following on from 10 years of research carried out on the MAQ3D/COSMER laboratory additive manufacturing platform, the aim of this research project is to explore the possibility of producing larger, high-stress spare parts on board using conventional additive manufacturing machines (FDM) by exploiting the concept of ARMEE Additive Manufacturing. This concept is based on the idea of combining a polymer matrix produced by conventional additive manufacturing with high-strength reinforcements inserted during the manufacture of the matrix (Direct Fiber Laying DFL approach) or after the fact (Post-Print Reinforcement PPR approach).These HR reinforcements could be tubular, cylindrical, or other types, produced using additive or traditional manufacturing techniques with metal, polymer, or composite materials (filled with short or long fibers). The relevance of the FAA concept lies in the possibility of producing replacement parts as quickly as possible, at a lower cost, with optimized mechanical performance.