Pregled bibliografske jedinice broj: 1224659
On the Effect of the Tension-Compression Asymmetry on Forming of Isotropic Materials
On the Effect of the Tension-Compression Asymmetry on Forming of Isotropic Materials // Book of Abstracts - 25th International Conference on Material Forming ESAFORM 2022 / Vincze, Gabriela ; Barlat, Frederic (ur.).
Braga, 2022. str. 83-83 (predavanje, međunarodna recenzija, sažetak, znanstveni)
CROSBI ID: 1224659 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
On the Effect of the Tension-Compression Asymmetry
on Forming of Isotropic Materials
Autori
Oliveira, Marta C ; Prcela, Ivan ; Cvitanić, Vedrana ; Neto, Diogo M ; Alves, Jose L ; Menezes Luis F
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Book of Abstracts - 25th International Conference on Material Forming ESAFORM 2022
/ Vincze, Gabriela ; Barlat, Frederic - Braga, 2022, 83-83
Skup
25th International Conference on Material Forming (ESAFORM 2022)
Mjesto i datum
Braga, Portugal, 27.04.2022. - 29.04.2022
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Međunarodna recenzija
Ključne riječi
isotropic yield function, tension-compression asymmetry, finite element method
Sažetak
In this study, numerical simulations of deep drawing of a cylindrical cup are considered. The utilized blank materials are all virtual, they are assumed to be isotropic with strength differential effect i. e. with different yield stress in tension and in compression. The aim is to understand the impact of the strength differential effect on the final cup geometry. The numerical model uses the yield criterion proposed by Cazacu et al. (2006) which allows describing the strength differential effect based solely on the ratio between the yield stresses in tension and in compression. Moreover, it reduces to the von Mises criterion for materials without the strength differential effect, enabling a direct comparison. Numerical simulations are performed considering different values for the ratio between the yield stresses in tension and in compression, in order to evaluate its impact on the thickness distribution and cup height. The analysis of the stress and strain paths, for material points initially located in the flange, is also performed. This enables correlating the predicted thickness distributions with the plastic strain ratios that can be obtained analytically for biaxial loadings, using the yield function and the normality rule.
Izvorni jezik
Engleski
Znanstvena područja
Strojarstvo, Temeljne tehničke znanosti
POVEZANOST RADA
Ustanove:
Fakultet elektrotehnike, strojarstva i brodogradnje, Split
Profili:
Vedrana Cvitanić
(autor)
