Şekil Hafızalı Mekanik Metamalzemeler: Tasarım, Üretim ve Uygulamalar


Aydın G., Çelebi H., Candan İ., San S. E.

JOURNAL OF POLYTECHNIC-POLITEKNIK DERGISI, cilt.28, sa.5, ss.1, 2025 (TRDizin) identifier

Özet

This review comprehensively examines the fundamental principles, fabrication techniques, characterization methods, and versatile application potentials of shape memory auxetic metamaterials (SMAMs), which are created through the integration of shape memory materials (SMMs) and auxetic structures. By combining the environmentally responsive and reversible shape-changing capabilities of shape memory materials with the exceptional mechanical responses of auxetic structures such as a negative Poisson's ratio, it becomes possible to design programmable, multifunctional, and high-performance systems. The study explores the scale-dependent deformation mechanisms of these hybrid metamaterials in detail and evaluates recent simulation studies carried out using finite element analysis, material modeling, and multiscale computational approaches. Furthermore, advanced manufacturing techniques such as fused deposition modeling, stereolithography, PolyJet printing, and laser cutting are discussed in the context of producing these systems. Within the scope of characterization methods, mechanical testing, thermal analysis, and shape recovery performance measurements are addressed. Recent developments in various application areas such as biomedical implants, soft robotic systems, flexible electronics, impact-absorbing structures, and wearable technologies are also presented. Given the lack of Turkish sources that jointly address these two innovative material classes, this work fills a critical gap in the literature and provides an original and holistic contribution to academic research. In addition, future research opportunities are discussed in the context of 4D printing technologies, AI-assisted design optimizations, and multi-material manufacturing approaches.