Justin Dirrenberger

Justin Dirrenberger is an Associate Professor (Maître de conférences HDR) at Conservatoire National des Arts et Métiers (CNAM) with a joint appointment at Arts et Métiers ParisTech (ENSAM), where he leads the CoMet research team (Comportement et microstructure des Métaux) within the PIMM laboratory. His work bridges fundamental mechanics with industrial applications in additive manufacturing, focusing on architected materials for aerospace, biomedical, and space sectors.

Dirrenberger's research centers on architectured materials—including auxetics, metamaterials, and lattice structures—with expertise in computational homogenization, laser-based metal processing, and multi-material 3D printing. Key areas include instability-induced pattern generation, mechanical behavior of heterogeneous media, and sustainable manufacturing processes. His methodology integrates numerical modeling (using Zébulon code) with experimental validation through advanced laser systems and mechanical characterization.

Recent publications (2023-2025) reveal strong trends toward bioinspired 4D printing, lunar construction materials (ESA project), and laser-optimized metal lattice production. His work consistently appears in high-impact journals (Materials & Design, Small, Advanced Materials Technologies), demonstrating both theoretical depth and industrial applicability in lightweight structures and energy-absorbing systems.

Dirrenberger currently leads five major projects:

• ANR MIRACLES (2024-2027): Resilient micro-lattices inspired by crystal plasticity
• H2020 REDI (2022-2027): European doctoral training with RMIT University
• ANR REDESIGN4D (2021-2026): Machine learning-driven adaptive composites
• ESA MOON-COMP (2022-2025): Lunar 3D printing for energy dissipation
• ANR ModuFEET (2021-2026): Reliable power electronics modules

He previously directed CNAM's Materials Engineering Program (2017-2024) and led ANR SCOLASTIC (2015-2020) on laser-processed steel.

The CoMet team operates within PIMM's advanced experimental ecosystem, utilizing Laser Choc (shock), Héphaïstos (thermal), and MESO 3D-Panam platforms for material processing. Current work focuses on translating computational models into printable architectures—from biomedical scaffolds to lunar construction materials—through close industry collaboration with aerospace, automotive, and space sector partners.