Access the full text.
Sign up today, get DeepDyve free for 14 days.
A. Gurson (1977)
Continuum Theory of Ductile Rupture by Void Nucleation and Growth: Part I—Yield Criteria and Flow Rules for Porous Ductile MediaJournal of Engineering Materials and Technology-transactions of The Asme, 99
P. Theocaris (1990)
Properties and experimental verification of the paraboloid failure criterion with transversely isotropic materialsJournal of Materials Science, 25
P. Theocaris (1986)
Yield criteria based on void coalescence mechanismsInternational Journal of Solids and Structures, 22
A. Geltmacher, D. Koss, P. Matic, M. Stout (1996)
A modeling study of the effect of stress state on void linking during ductile fractureActa Materialia, 44
V. Tvergaard, A. Needleman (1984)
Analysis of the cup-cone fracture in a round tensile barActa Metallurgica, 32
JOURN A L O F M AT E R IALS SCIENCE LETT ERS 17 (1 998 ) 2 23± 226 A study of ¯ow localization around voids by a grid method J. F A NG, S. Y. NI Department of Mechanics and Engineering Science, Beijing University, Beijing 100 871, People's Republic of China The growth and coalescence of microvoids is one of hardening, with maximum extensibility of 15% for the principal mechanisms of fracture failure of many void-containing materials. In the step-by-step loading ductile materials like metals, alloys and polymers. procedure, the plastic strains of the matrix around Some analytical models have been developed to the voids were measured with the help of the present constitutive relations for void-containing deformed grids observed by a microscope and materials, such as Gurson's equations for ductile recorded by a CCD camera. For a cross grid of porous medium with a rigid ± plastic solid approx- rectangular brightness distribution with the grid imation [1], and other modi®ed models to predicate pitches p and p in the x and y directions, x0 y0 the yield criterion based on void linking, including respectively, the brightness function f(x, y) can be that from numerical analysis of
Journal of Materials Science Letters – Springer Journals
Published: Sep 29, 2004
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.