Domen Šeruga (Avtor), Marko Nagode (Avtor), Jernej Klemenc (Avtor)

Povzetek

For stress-strain response simulations and damage prediction of cyclically loaded mechanical components, it is crucial to determine both the stress-strain and durability curves of the materials sued. Round and flat specimens can be used for this purpose, either following standard recommendations for their geometry or by designing a special geometry which enables special requirements, such as initial cracks of various shapes, attachment of an extensometer, special grips for raised temperatures, and so on. However, especially in the case of flat specimens having a slender shape, buckling can occur before the stress or strain values reach a sufficient magnitude in compression. To avoid this, an anti-buckling support can be attached to the specimen, which prevents the occurrence of buckling. In turn, friction occurs between the specimen and the anti-buckling support, which affects the measurement of the stress. If a special sensor is attached under the anti-buckling support, the friction force can be measured and subtracted from the stress signal, leaving only the stress-strain response of the material under investigation. In this study, two materials were investigated during incremental step and variable loading tests: The aluminium alloy AlMgSi0.5 and a biodegradable polylactide.

Ključne besede

cyclic stress-strain response;aluminium alloy AlMgSi0.5;biodegradable polylactide;anti-buckling support;friction;fatigue;cyclic curves;cross correlation;buckling;variable loading;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FS - Fakulteta za strojništvo
UDK: 620.1/.2:669.715(045)
COBISS: 16744731 Povezava se bo odprla v novem oknu
ISSN: 2227-7080
Št. ogledov: 734
Št. prenosov: 450
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: utrujanje;ciklična krivulja;križna korelacija;uklon;koračni test;naključna obremenitev;trenje;PLA;aluminijeve zlitine;
Vrsta dela (COBISS): Članek v reviji
Strani: f. 1-9
Letnik: ǂVol. ǂ7
Zvezek: ǂiss. ǂ3
Čas izdaje: 2019
DOI: 10.3390/technologies7030053
ID: 11199572