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Prediction of static and low-cycle durability of porous cellular structures with positive and negative Poisson's ratios
ID Tomažinčič, Dejan (Avtor), ID Vesenjak, Matej (Avtor), ID Klemenc, Jernej (Avtor)

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Izvleček
The static and low-cycle durability of three planar cellular structures, hexagonal, auxetic and auxetic-chiral, have been compared. The three structures have the same critical cross-section and are made from an aluminium alloy Al7075-T651. The reference region of each structure is represented by a matrix of nine elementary shaped cells (3 rows by 3 columns). For each structure static and low-cycle fatigue experiments at different loading amplitudes were made. Numerical simulations were then performed for the same boundary conditions to predict the static and low-cycle fatigue durability. For this purpose a continuum damage mechanics approach with element removal was used in explicit dynamic simulations. The results of static simulations were also checked using the eXtended Finite Element Method (XFEM). All the numerical simulations were carried out using Abaqus. Good agreement was observed between the simulated and measured results for each of the three cellular structures.

Jezik:Angleški jezik
Ključne besede:low-cycle fatigue, element removal, XFEM, aluminium alloy, auxetic, honeycomb, strain-energy density
Vrsta gradiva:Članek v reviji
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:FS - Fakulteta za strojništvo
Status publikacije:Objavljeno
Različica publikacije:Recenzirani rokopis
Leto izida:2020
Št. strani:Str. 1-13
Številčenje:Vol. 106 (102479)
PID:20.500.12556/RUL-113842 Povezava se odpre v novem oknu
UDK:539.2:539.4(045)
ISSN pri članku:0167-8442
DOI:10.1016/j.tafmec.2020.102479 Povezava se odpre v novem oknu
COBISS.SI-ID:22988310 Povezava se odpre v novem oknu
Datum objave v RUL:06.02.2020
Število ogledov:1254
Število prenosov:909
Metapodatki:XML RDF-CHPDL DC-XML DC-RDF
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Sekundarni jezik

Jezik:Slovenski jezik
Ključne besede:malo-ciklično utrujanje, odstranitev elementov, aluminijeve zlitine, oksetični materiali, satovje, gostota energije specifične deformacije

Projekti

Financer:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:J2-8186
Naslov:Razvoj večnamenskih avksetičnih celičnih struktur

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