In this study, experimental investigation and numerical simulation U-bending process are
employed to construct a damage model based on ductile damage criteria. Also, an adaptive …

The present study aims to propose a new predictive damage model considering the stress
state and the effect of process parameters. To this end, an intelligent model founded based …

The ductile fracture behavior of metallic materials is usually coupled with complex stress
states. In order to describe the facture behavior of metallic materials under a broad range of …

The ability to describe the fracture behaviour of materials and the difficulty of parameter
calibration are important factors for evaluating the ductile fracture criterion. To find a ductile …

To solve the problem that the original GTN model cannot accurately simulate ductile fracture
of material under low stress triaxiality, many scholars have made shear improvement to it …

In this study, the plastic deformation behavior at a large strain range, as well as the ductile
damage and fracture of aluminum alloy 2024-O materials, were investigated under quasi …

A Gleeble-3800 thermal simulation machine was used to conduct high-temperature tensile
test on 6005A aluminum alloy at 350-450° C and a strain rate of 0.01-1 s− 1. True stress …

Abstract The Gurson–Tvergaard–Needleman (GTN) model has provided a powerful
description of the nucleation growth and coalescence of micro voids, but it has limitations in …

A model for the evolution of ductile damage in the sense of void fractions using artificial
neural networks (ANN) is proposed. In contrast to constitutive damage models, the damage …

Abstract The modified Gurson-Tvergaard-Needleman (GTN) model is employed to predict
the ductile fracture of 7A62 high-strength aluminum alloy under a wide range of stress …