Anisotropic ductile fracture Part II: theory Academic Article

abstract

• A theory of anisotropic ductile fracture is outlined and applied to predict failure in a low alloy steel. The theory accounts for initial anisotropy and microstructure evolution (plastic anisotropy, porosity, void shape, orientation and spacing) and is supplemented by a recent micromechanical model of void-coalescence. A rate-dependent version of the theory is employed to solve boundary value problems. The application to the studied steel relies on material parameters inferred from quantitative metallography measurements. The quantitative prediction of damage accumulation and crack initiation in notched bars is achieved without any adjustable factor and is discussed under various stress states and loading orientations. 2004 Acta Materialia Inc. published by Elsevier Ltd. All rights reserved.

authors

• Benzerga, Amine

published proceedings

• ACTA MATERIALIA

author list (cited authors)

• Benzerga, A. A., Besson, J., & Pineau, A.

citation count

• 205

complete list of authors

• Benzerga, AA||Besson, J||Pineau, A

publication date

• September 2004

publisher

• Elsevier  Publisher

published in

• ACTA MATERIALIA  Journal

keywords

• Alloys
• Anisotropic Plasticity
• Fracture
• Micromechanics
• Void Coalescence

Digital Object Identifier (DOI)

• 10.1016/j.actamat.2004.06.019

start page

• 4639

end page

• 4650

volume

• 52

issue

• 15

URL

• http://dx.doi.org/10.1016/j.actamat.2004.06.019