The Impact of the Geometry of Cellular Structure Made of Glass-Filled Polyamide on the Energy-Absorbing Properties of Design Elements

被引：0

作者：

Diachenko, Semen, V ^{[1
,2
]}

Balabanov, Sergey, V ^{[1
]}

Sychov, Maxim M. ^{[1
,2
]}

Litosov, German E. ^{[2
]}

Kiryanov, Nikita, V ^{[2
]}

机构：

[1] Russian Acad Sci, Inst Silicate Chem, Moscow, Russia

[2] St Petersburg State Inst Technol, Moskovsky Ave 24-26-49, St Petersburg, Russia

来源：

STROJNISKI VESTNIK-JOURNAL OF MECHANICAL ENGINEERING | 2024年 / 70卷 / 11-12期

关键词：

additive technologies; selective laser sintering; polyamide; glass; triply periodic minimal surface; energy absorption; dampers; MECHANICAL-PROPERTIES; TOPOLOGY; PRODUCTS; SURFACES;

D O I：

10.5545/sv-jme.2024.975

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

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 sigma(sp.max) >8 MPa center dot cm(3)/g is possessed by samples with the geometry IWP* and PJ; the highest specific energy absorption A( sp) = 14.5 MJ/m(3) 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.

引用

页码：607 / 619

页数：13

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