Anisotropic yield function based on stress invariants for BCC and FCC metals and its extension to ductile fracture criterion

Y Lou, JW Yoon - International Journal of Plasticity, 2018 - Elsevier
It is essential to accurately model the anisotropic plastic deformation and ductile fracture of
metals in order to guarantee the reliable numerical analysis and optimization of metal …

Anisotropic ductile fracture criterion based on linear transformation

Y Lou, JW Yoon - International Journal of Plasticity, 2017 - Elsevier
An anisotropic ductile fracture criterion is proposed for ductile fracture of lightweight metals.
The ductile fracture criterion couples effect of stress triaxiality on void growth, and assumes …

Strain rate and temperature dependent fracture criteria for isotropic and anisotropic metals

AS Khan, H Liu - International Journal of Plasticity, 2012 - Elsevier
The newly proposed isotropic ductile fracture criterion (Khan and Liu, 2012), based on the
magnitude of stress vector (MSV), is further developed to include strain rate and temperature …

User-friendly anisotropic hardening function with non-associated flow rule under the proportional loadings for BCC and FCC metals

Z Chen, Y Wang, Y Lou - Mechanics of Materials, 2022 - Elsevier
This paper presents a user-friendly function under non-associate flow rule to capture
anisotropic hardening (or evolution of yield surface) and the curvature of yield loci for body …

[HTML][HTML] Alternative approach to model ductile fracture by incorporating anisotropic yield function

Y Lou, JW Yoon - International Journal of Solids and Structures, 2019 - Elsevier
Due to the texture formed in cold/hot rolled forming process, anisotropy is a key issue not
only in modeling of plastic deformation but also in characterization of fracture behavior. In …

A reduced Yld2004 function for modeling of anisotropic plastic deformation of metals under triaxial loading

Y Lou, S Zhang, JW Yoon - International Journal of Mechanical Sciences, 2019 - Elsevier
Solid elements are increasingly utilized in finite element analysis of sheet metal stamping
processes with the rising application of advanced high strength steels (AHSSs) and …

[PDF][PDF] Effect of loading history on necking and fracture

Y Bai - PhD. Massachusetts Institute of Technology …, 2007 - researchgate.net
The effect of Lode angle parameter, or the third deviatoric stress invariant, on plasticity and
fracture is studied using flat-grooved transverse plane strain specimens. A generalized …

Calibration of ductile fracture properties of a cast aluminum alloy

H Mae, X Teng, Y Bai, T Wierzbicki - Materials Science and Engineering: A, 2007 - Elsevier
To numerically predict crack formation and growth of cast components under accidental
loading, it is necessary to characterize fracture properties at the macroscopic level. In this …

Asymmetric yield function based on the stress invariants for pressure sensitive metals

JW Yoon, Y Lou, J Yoon, MV Glazoff - International Journal of Plasticity, 2014 - Elsevier
A general asymmetric yield function is proposed with dependence on the stress invariants
for pressure sensitive metals. The pressure sensitivity of the proposed yield function is …

Effects of the stress state on plasticity and ductile failure of an aluminum 5083 alloy

X Gao, T Zhang, M Hayden, C Roe - International Journal of Plasticity, 2009 - Elsevier
The experimental and numerical work presented in this paper reveals that stress state has
strong effects on both the plastic response and the ductile fracture behavior of an aluminum …