Plastic Flow Localization and Ductile Fracture

Viggo Tvergaard*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

223 Downloads (Pure)

Abstract

To treat tensile instabilities the main points of the theory of uniqueness and bifurcation in elastic-plastic solids are outlined. Also simple theories for localization of plastic flow are discussed. Instability predictions are highly sensitive to the material model applied. Ductile fracture in metals involves the nucleation and growth of micro-voids to coalescense. Such porous ductile materials also show localization of plastic flow. Analyses for low stress triaxiality show failure mechanisms involving collapse of voids into micro-cracks that subsequently interact.
Original languageEnglish
Article number012005
Book seriesJournal of Physics: Conference Series
Volume1063
Issue number1
Number of pages7
ISSN1742-6596
DOIs
Publication statusPublished - 2018

Bibliographical note

Content from this work may be used under the terms of the Creative Commons Attribution 3.0 licence. Any further distribution of this work must maintain attribution to the author(s) and the title of the work, journal citation and DOI. Published under licence by IOP Publishing Ltd

Fingerprint Dive into the research topics of 'Plastic Flow Localization and Ductile Fracture'. Together they form a unique fingerprint.

Cite this