Design and additive manufacturing of novel hybrid lattice metamaterial for enhanced energy absorption and structural stability

Ritik Raj; Mayur Jiyalal Prajapati; Jung-Ting Tsai; Ajeet Kumar; Jeng-Ywan Jeng

Materials & Design (Sep 2024)

Design and additive manufacturing of novel hybrid lattice metamaterial for enhanced energy absorption and structural stability

Ritik Raj,
Mayur Jiyalal Prajapati,
Jung-Ting Tsai,
Ajeet Kumar,
Jeng-Ywan Jeng

Affiliations

Ritik Raj: Taiwan High-Speed 3D Printing Research Center, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei 106, Taiwan, ROC; Department of Mechanical Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei 106, Taiwan, ROC
Mayur Jiyalal Prajapati: Taiwan High-Speed 3D Printing Research Center, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei 106, Taiwan, ROC; Department of Mechanical Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei 106, Taiwan, ROC
Jung-Ting Tsai: Department of Mechanical Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei 106, Taiwan, ROC
Ajeet Kumar: Design for Additive Manufacturing and Innovation (DAMi) Lab, Department of Design, Indian Institute of Technology, Guwahati, North Guwahati, Assam 781039, India
Jeng-Ywan Jeng: Taiwan High-Speed 3D Printing Research Center, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei 106, Taiwan, ROC; Department of Mechanical Engineering, National Taiwan University of Science and Technology, No. 43, Sec. 4, Keelung Rd., Taipei 106, Taiwan, ROC; Academy of Innovative Semiconductor and Sustainable Manufacturing, National Cheng Kung University, No. 1, Dasyue Rd., Tainan City 701, Taiwan, ROC; Department of Design, Indian Institute of Technology Guwahati, Guwahati 781039, Assam, India; Visiting Scholar, The Extreme Light Infrastructure ERIC, Za Radnicí 835, 252 41 Dolní Břežany, Prague, Czechia; Corresponding author.

Journal volume & issue: Vol. 245
p. 113268

Abstract

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In this work, a novel dual-phase metamaterial, named as “hybrid lattice metamaterial (HLM),” are designed and fabricated by combining reentrant and sea-urchin (SU) based surface-lattice (SL) structure with polyamide12 (PA12) material via material extrusion (MEX) process. Four different designs with varying reentrant truss thicknesses of 0.8 mm (H1), 1.0 mm (H2), 1.2 mm (H3), and 1.5 mm (H4) have been modified to assemble seamlessly with the empty spaces within the SL structure. Quasistatic compression tests were conducted to evaluate the deformation modes and compression characteristics. The findings from quasistatic experiments were subsequently validated using numerical simulations. The H4 metamaterial exhibited superior structural properties, with 42 % increase in stiffness and 35 % enhancement in specific energy absorption compared to only SL structure. Additionally, dynamic sinusoidal compression tests were conducted to evaluate the dynamic elastic ratio (DER), hysteresis work and viscoelastic properties using the tan δ. The H4 metamaterial outperformed the SL in all dynamic properties, with a 50 % increase in elastic modulus and 36 % increase in hysteresis work. This study shows metamaterial properties can be tailored for specific requirements. SL structure facilitate elastic recovery, while H4 metamaterials offer superior energy absorption and stability, making it well-suited for protective equipment and impact-resistant components.

Published in Materials & Design

ISSN: 0264-1275 (Print); 1873-4197 (Online)
Publisher: Elsevier
Country of publisher: United Kingdom
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Materials of engineering and construction. Mechanics of materials
Website: https://www.journals.elsevier.com/materials-and-design

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