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A durability prediction for the magnesium alloy AZ31 based on plastic and total energy
ID
Klemenc, Jernej
(
Avtor
),
ID
Šeruga, Domen
(
Avtor
),
ID
Nagode, Marko
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(4,55 MB)
MD5: F5854C44C49BA0300130764F374F86F6
URL - Izvorni URL, za dostop obiščite
https://www.mdpi.com/2075-4701/9/9/973
Galerija slik
Izvleček
Magnesium has a good strength-to-weight ratio. As a result, magnesium alloys are gradually becoming an integral part of lightweight designs that are especially important to the automotive and aerospace industries. The magnesium alloy AZ31 is particularly suitable for forming. Furthermore, as its cyclic response is asymmetric, the accumulated energy during loading is a convenient basis for durability predictions of a product that is made of the AZ31 alloy. In this article, we show how the inverse-power law model can be combined with a Weibull’s probability density function to describe the shape of the fatigue-life curves and their scatter. Various load histories were chosen to characterize the response of the AZ31 alloy under different cyclic loadings. Both the plastic and the total strain energy densities were calculated for all the load histories, and then, a suitable dependence in terms of energy fatigue-life curves was determined. The proposed model is appropriate for modeling the low-cycle fatigue life of the AZ31 alloy. With the application of a linear damage-accumulation rule, it is also possible to predict the fatigue life for the non-constant amplitude loading within one decade of accuracy.
Jezik:
Angleški jezik
Ključne besede:
magnesium alloy AZ31
,
fatigue life
,
strain-energy density
,
Weibullʼs probability density function
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FS - Fakulteta za strojništvo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2019
Št. strani:
16 str.
Številčenje:
Vol. 9, iss. 9, art. 973
PID:
20.500.12556/RUL-109459
UDK:
669.721.5:620.178.3(045)
ISSN pri članku:
2075-4701
DOI:
10.3390/met9090973
COBISS.SI-ID:
16772379
Datum objave v RUL:
03.09.2019
Število ogledov:
1683
Število prenosov:
529
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
Metals
Skrajšan naslov:
Metals
Založnik:
MDPI AG
ISSN:
2075-4701
COBISS.SI-ID:
15976214
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:
03.09.2019
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
magnezijeva zlitina AZ31
,
doba trajanja
,
gostota energije specifične deformacije
,
Weibullova gostota porazdelitve verjetnosti
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0182
Naslov:
Razvojna vrednotenja
Financer:
Drugi - Drug financer ali več financerjev
Program financ.:
Ministry of Education, Science and Sport
Številka projekta:
C3330-16-529001
Akronim:
EVA4green
Financer:
Drugi - Drug financer ali več financerjev
Program financ.:
Ministry of Education, Science and Sport
Številka projekta:
OP20.00362
Akronim:
EVA4green
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