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A simple model for the three-dimensional growth of voids/inclusions in plastic materials

✍ Scribed by Nguyen L. Dung

Publisher
Springer Netherlands
Year
1992
Tongue
English
Weight
272 KB
Volume
53
Category
Article
ISSN
1573-2673

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✦ Synopsis

This paper deals with the stable growth of the three-dimensional voids or inclusions in an infinite block of an isotropic ductile material. It introduces an analytical model of the growth of cylindrical and ellipsoidal voids/inclusions which takes into account both the macro-and microscopic parameters [1][2]. This model is simple and based on the original McClintock model of the growth of a single cylindrical void in a plastic medium [6]. The constitutive softening (or the strengthening effect) as a function of the porosity (or the inclusion density) and stress state is also considered. For two-dimensional problems, McClintock [6] proposed a closed-form expression (R) -~[3 . ,['~'(1-n)O,+(Y3] g,+~

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