The Impact of the geometry of cellular structure made of glass-filled polyamide on the energy-absorbing properties of design elements

Diachenko, Semen V. (author), Balabanov, Sergey V. (author), Sychov, Maxim M. (author), Litosov, German E. (author), Kiryanov, Nikita V. (author)

Energy-absorbing properties of cellular materials with D, G, IWP*, N, P, Q, PJ triply minimal energy surface geometries were investigated. Materials were made of glass-filled polyamide by selective laser sintering. Mechanical properties of cellular structures were determined depending on the geometry: the highest specific compressive strength σsp.max >8 MPa∙cm3/g is possessed by samples with the geometry IWP* and PJ; the highest specific energy absorption Asp = 14.5 MJ/m3 is in the sample with the geometry N. A mass-strength criterion for cellular structures is proposed. The maximal values of mass-strength criterion are from samples with geometries N, IWP* and PJ; 4.16 MPa2/g, 3.51 MPa2/g, and 2.88 MPa2/g. The adequacy of applying the Gibson-Ashby equation for fabricated cellular materials with triply periodic minimal surfaces (TPMS) geometry has been proven.

• Language: English
• Keywords: additive technologies, selective laser sintering, polyamide, glass, triply periodic minimal surface, energy absorption, dampers
• Typology: 1.01 - Original Scientific Article
• Organization: FS - Faculty of Mechanical Engineering
• Submitted for review: 09.03.2024
• Article acceptance date: 18.06.2024
• Publication date: 01.12.2024
• Year: 2024
• Number of pages: Str. 595-606
• Numbering: Vol. 70, no. 11/12
• PID: 20.500.12556/RUL-166869
• UDC: 621
• ISSN on article: 2536-3948
• DOI: 10.5545/sv-jme.2024.975
• COBISS.SI-ID: 224218115
• Publication date in RUL: 28.01.2025

Record is a part of a journal

• Title: Strojniški vestnik
• Shortened title: Stroj. vestn.
• Publisher: Fakulteta za strojništvo
• ISSN: 2536-3948
• COBISS.SI-ID: 294943232

Licences

• License: CC BY 4.0, Creative Commons Attribution 4.0 International
• Link: http://creativecommons.org/licenses/by/4.0/
• Description: This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.

Secondary language

• Language: Slovenian
• Keywords: dodajalne tehnologije, selektivno lasersko sintranje, poliamid, steklo, trojno periodična minimalna površina, absobcija energije, blažilniki

Projects

• Funder: Other - Other funder or multiple funders
• Funding programme: RSF project
• Project number: 20-73-10171
• Name: Next-generation energy-absorbing materials based on gradient cellular structures