On anisotropy and non-proportional loading in damage and fracture models

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

Abstract

Modelling of ductile fracture can be done by damage evolution models and by fracture criteria. Recently, fracture criteria formulated in triaxiality, Lode angle parameter and fracture strain have gained popularity. This paper reviews some of these models and identifies issues when anisotropic damage and strain path dependency are involved. Both effects play a role when simple shear and pure shear deformations are compared. A concise overview of literature is presented. It is concluded that triaxiality and Lode angle based fracture criteria cannot account for relevant differences between simple and pure shear in ductile materials.
Original languageEnglish
Title of host publication11th Forming Technology Forum 2018
Place of PublicationZurich, Switzerland
PublisherIVP - ETH Zurich
Number of pages6
Publication statusPublished - Jul 2018
Event11th Forming Technology Forum 2018: Experimental and numerical methods in the FEM based crack prediction - Technopark Zürich, Zurich, Switzerland
Duration: 2 Jul 20183 Jul 2018
Conference number: 11
http://www.ivp.ethz.ch/en/news-and-events/ftf18.html

Conference

Conference11th Forming Technology Forum 2018
Abbreviated titleFTF 2018
CountrySwitzerland
CityZurich
Period2/07/183/07/18
Internet address

Fingerprint

Anisotropy
Ductile fracture
Shear deformation

Keywords

  • anisotropy
  • non-proportional loading
  • damage
  • fracture
  • Lode angle
  • triaxiality

Cite this

van den Boogaard, A. H. (2018). On anisotropy and non-proportional loading in damage and fracture models. In 11th Forming Technology Forum 2018 Zurich, Switzerland: IVP - ETH Zurich.
van den Boogaard, Antonius H. / On anisotropy and non-proportional loading in damage and fracture models. 11th Forming Technology Forum 2018. Zurich, Switzerland : IVP - ETH Zurich, 2018.
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van den Boogaard, AH 2018, On anisotropy and non-proportional loading in damage and fracture models. in 11th Forming Technology Forum 2018. IVP - ETH Zurich, Zurich, Switzerland, 11th Forming Technology Forum 2018, Zurich, Switzerland, 2/07/18.

On anisotropy and non-proportional loading in damage and fracture models. / van den Boogaard, Antonius H.

11th Forming Technology Forum 2018. Zurich, Switzerland : IVP - ETH Zurich, 2018.

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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N2 - Modelling of ductile fracture can be done by damage evolution models and by fracture criteria. Recently, fracture criteria formulated in triaxiality, Lode angle parameter and fracture strain have gained popularity. This paper reviews some of these models and identifies issues when anisotropic damage and strain path dependency are involved. Both effects play a role when simple shear and pure shear deformations are compared. A concise overview of literature is presented. It is concluded that triaxiality and Lode angle based fracture criteria cannot account for relevant differences between simple and pure shear in ductile materials.

AB - Modelling of ductile fracture can be done by damage evolution models and by fracture criteria. Recently, fracture criteria formulated in triaxiality, Lode angle parameter and fracture strain have gained popularity. This paper reviews some of these models and identifies issues when anisotropic damage and strain path dependency are involved. Both effects play a role when simple shear and pure shear deformations are compared. A concise overview of literature is presented. It is concluded that triaxiality and Lode angle based fracture criteria cannot account for relevant differences between simple and pure shear in ductile materials.

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van den Boogaard AH. On anisotropy and non-proportional loading in damage and fracture models. In 11th Forming Technology Forum 2018. Zurich, Switzerland: IVP - ETH Zurich. 2018