New ductile fracture model for fracture prediction ranging from negative to high stress triaxiality

Z Peng, H Zhao, X Li - International Journal of Plasticity, 2021 - Elsevier
In this study, the ductile fracture of the alloy metal is analyzed. First, the key factors affecting
the initiation of ductile fracture are investigated. Then, a new uncoupled ductile fracture …

Strength modeling of sheet metals from shear to plane strain tension

Y Lou, S Zhang, JW Yoon - International Journal of Plasticity, 2020 - Elsevier
This paper proposes a yield function to model sheet metal strength between shear and
plane strain tension. The function is expressed as an equation of the three stress invariants …

Anisotropic plasticity and fracture of alpha titanium sheets from cryogenic to warm temperatures

H Yang, H Li, H Sun, YH Zhang, X Liu, M Zhan… - International Journal of …, 2022 - Elsevier
Titanium is promising for manufacturing high-performance components in aerospace,
marine, energy and healthcare. Whether the forming potential of alpha titanium can be …

A unified ductile fracture criterion suitable for sheet and bulk metals considering multiple void deformation modes

L Zheng, Z Wang, B Meng, M Wan - International Journal of Plasticity, 2023 - Elsevier
In engineering practice, it is critical to accurately forecast the fracture initiation of ductile
metals. Currently, various uncoupled ductile fracture criteria (DFCs) have been constructed …

Experimental and numerical investigation of ductile fracture for AA6061-T6 sheets at room and elevated temperatures

A Kacem, H Laurent, S Thuillier - International Journal of Mechanical …, 2022 - Elsevier
Warm forming is largely employed to enhance the poor formability of aluminum alloys at
room temperature. The knowledge of the effect of stress state and temperature on the …

[HTML][HTML] Extension of a shear-controlled ductile fracture criterion by considering the necking coalescence of voids

Z Zhang, Y Wu, F Huang - International Journal of Solids and Structures, 2022 - Elsevier
An isotropic ductile fracture criterion considering nucleation, growth, shear coalescence and
necking coalescence of voids during plastic deformation is developed to model fracture …

Comparison of anisotropic yield functions and calibrations for accurate thickness prediction in hole expansion test

HS Park, F Barlat, SY Lee - Journal of Materials Processing Technology, 2023 - Elsevier
The hole expansion test is an appropriate evaluation method for assessing the formability of
automotive parts, where fracture prediction using simulated localized thickness is crucial …

Ductile fracture of dual-phase steel at elevated temperatures

C Ma, X Yan, T Gernay - Engineering Structures, 2023 - Elsevier
Structural steels can be subjected to a range of stress and temperature conditions, and
accurate characterization of their limit states is a requirement for structural design. Yet data …

A new ductile fracture model for structural metals considering effects of stress state, strain hardening and micro-void shape

W Li, Y Jing, T Zhou, G Xing - Thin-Walled Structures, 2022 - Elsevier
In this study, a new micromechanically-motivated phenomenological uncoupled fracture
model is proposed for predicting the ductile fracture of structural metals considering the …

A CDM-like constitutive law for predicting degradation of strength and ductility of steel subjected to cyclic loading

Y Shintaku, S Tsutsumi, K Terada - International Journal of Plasticity, 2022 - Elsevier
This paper presents a continuum-damage-model-like constitutive law embedding cohesive
cracks with plasticity-induced damage to represent the degradation of strength and ductility …