Analysis of forming capacity of HCT490X and DX57D depending on strain rate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F21%3A00344750" target="_blank" >RIV/68407700:21220/21:00344750 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1088/1757-899X/1178/1/012045" target="_blank" >https://doi.org/10.1088/1757-899X/1178/1/012045</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1757-899X/1178/1/012045" target="_blank" >10.1088/1757-899X/1178/1/012045</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Analysis of forming capacity of HCT490X and DX57D depending on strain rate

Popis výsledku v původním jazyce

To evaluate forming capacity in sheet metal forming, experimentally determined Forming Limit Curves (FLC) are often used. These curves represent the forming limits of a material. The most widely used approach to experimentally determine the onset of necking of sheet metals is formulated in EN ISO 12004-2. The first goal of this work is to investigate limit strains for dual-phase steel HCT490X (commonly referred to as DP500) with a nominal thickness of 0.6 mm and deep drawing steel DX57D with a nominal thickness of 0.7 mm. The second goal is to evaluate the influence of punch speed (resulting in strain rate) on the position of forming limit curve for materials HCT490X and DX57D. The FLC curve is measured with Nakajima test on a universal testing machine BUP 600. The test set-up and the shape of samples follow EN ISO 12004-2. The stochastic, isotropic and high contrast pattern was applied on samples and was measured using 3D photogrammetric system ARAMIS by GOM. The punch movement velocity was gradually changed, and experimentally measured results are compared with numerical simulation in AutoForm Forming R8.

Název v anglickém jazyce

Analysis of forming capacity of HCT490X and DX57D depending on strain rate

Popis výsledku anglicky

To evaluate forming capacity in sheet metal forming, experimentally determined Forming Limit Curves (FLC) are often used. These curves represent the forming limits of a material. The most widely used approach to experimentally determine the onset of necking of sheet metals is formulated in EN ISO 12004-2. The first goal of this work is to investigate limit strains for dual-phase steel HCT490X (commonly referred to as DP500) with a nominal thickness of 0.6 mm and deep drawing steel DX57D with a nominal thickness of 0.7 mm. The second goal is to evaluate the influence of punch speed (resulting in strain rate) on the position of forming limit curve for materials HCT490X and DX57D. The FLC curve is measured with Nakajima test on a universal testing machine BUP 600. The test set-up and the shape of samples follow EN ISO 12004-2. The stochastic, isotropic and high contrast pattern was applied on samples and was measured using 3D photogrammetric system ARAMIS by GOM. The punch movement velocity was gradually changed, and experimentally measured results are compared with numerical simulation in AutoForm Forming R8.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20301 - Mechanical engineering

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

IOP Conference Series: Materials Science and Engineering, COMAT 2020

ISBN

—

ISSN

1757-899X

e-ISSN

1757-899X

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

IOP Publishing Ltd

Místo vydání

Bristol

Místo konání akce

Plzeň

Datum konání akce

30. 11. 2020

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

—