Continuous damage accumulation resulting from void nucleation, growth, and coalescence
leads to the final ductile fracture. The Gurson–Tvergaard–Needleman (GTN) model and its …

Based on two ductile fracture mechanisms, a new modification to the Gurson–Tvergaard–
Needleman (GTN) model is proposed for the simulation of ductile fracture behaviors under …

This paper aims to present a Continuum Damage Mechanics based fracture model. Two
yield surfaces, plastic and damage, are utilized to develop the model. A modified 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 …

Abstract The Gurson–Tvergaard–Needleman (GTN) model is promising in failure prediction
as it takes the micromechanical behavior of ductile metals into consideration. However, its …

Shear stress ratio have recently been recognized as an important parameter, in addition to
stress triaxiality, that influences the initiation of ductile fracture in metals. In this paper, the …

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 …

Ductile fracture at the high triaxiality regime is well-known to be controlled by void
nucleation, growth and coalescence. However, under low stress triaxiality conditions and …

This contribution provides an improvement on GTN model upon the prediction of fracture
location within low level of stress triaxiality. In the proposition, two distinct damage …

Anisotropic ductile fracture resulting from different microscopic void behaviors has a
significant effect on material formability. To accurately predict the anisotropic ductile fracture …