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Strain rate sensitivity of low carbon threaded steel rods of grade 4.6 : by Jovan Trajkovski and Robert Kunc
ID
Trajkovski, Jovan
(
Avtor
),
ID
Kunc, Robert
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(6,91 MB)
MD5: 883B089E474CBCDF768A6B85D5C49CCA
URL - Izvorni URL, za dostop obiščite
https://www.mdpi.com/1996-1944/17/24/6228
Galerija slik
Izvleček
Bolt connections are widely used in construction and engineering to securely join structural elements. These connections are essential for distributing loads across components and ensuring that structures can withstand external forces. The planned failure of these bolts is of great importance in steel safety barriers (SSBs), as it can directly influence the height of the guardrail and the working width of the SSB during the vehicle impact, which consequently affects the crash consequences. Therefore, it is of great importance to determine the bolt response until fractures under different strain rates. For that purpose, experimental tensile tests of low-strength steel rods of grade 4.6 were conducted at various strain rates (0.0025–25 s−1) until fracture. Test specimens were photographed during the testing, and by means of image processing, input data for calculation of true stresses and strains up to the point of fracture were extracted. Based on the experimental data, material parameters were determined for the Cowper–Symonds model, enabling precise numerical simulations of these connections at various strain rates. A validation study was also performed successfully.
Jezik:
Angleški jezik
Ključne besede:
material characterization
,
strength parameters
,
thread failure
,
numerical simulation
,
road barriers
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:
2024
Št. strani:
14 str.
Številčenje:
Vol. 17, iss. 24, [art. no.] 6228
PID:
20.500.12556/RUL-166181
UDK:
620.1:519.6
ISSN pri članku:
1996-1944
DOI:
10.3390/ma17246228
COBISS.SI-ID:
220242179
Datum objave v RUL:
23.12.2024
Število ogledov:
15
Število prenosov:
0
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
Materials
Skrajšan naslov:
Materials
Založnik:
Molecular Diversity Preservation International
ISSN:
1996-1944
COBISS.SI-ID:
33588485
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.
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0109
Naslov:
Modeliranje v tehniki in medicini
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