Title

A comparative study of three groups of ductile fracture loci in the 3D space

Authors

Authors

Y. L. Bai;T. Wierzbicki

Comments

Authors: contact us about adding a copy of your work at STARS@ucf.edu

Abbreviated Journal Title

Eng. Fract. Mech.

Keywords

Ductile fracture; 3D fracture locus; Phenomenological models; Physics; models; Empirical models; SHEAR MODIFIED GURSON; STRESS TRIAXIALITY; ALUMINUM EXTRUSIONS; SHEET; METALS; CUTOFF VALUE; FAILURE; MODEL; STRAIN; CRITERION; PREDICTION; Mechanics

Abstract

Ductile fracture is inherently a three-dimensional phenomenon and should be represented in the 3-D space. Sixteen fracture models are evaluated and divided into three groups: physics based models, phenomenological models and empirical models. These models are then calibrated from the three sets of experimental data, TRIP 690 and TRIP 780 steel sheets and 2024-T351 aluminum alloy. Under the assumption of monotonic loading conditions, major qualitative differences emerged from the comparison of the models in terms of the range of applicability as well as shapes of the 3D fracture envelope are discussed. Several implicit features of these models are revealed. (C) 2015 Elsevier Ltd. All rights reserved.

Journal Title

Engineering Fracture Mechanics

Volume

135

Publication Date

1-1-2015

Document Type

Article

Language

English

First Page

147

Last Page

167

WOS Identifier

WOS:000350002800009

ISSN

0013-7944

Share

COinS