Insight into plasticity mechanisms in metallic glasses by means of a Brazilian test and numerical simulation

J. S. Brest, V. Keryvin, P. Longère, Y. Yokoyama

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Multiaxial and heterogeneous mechanical experiments, by means of the diametral compression test (Brazilian test), were carried out on Zr-based Bulk Metallic Glass. Attention was notably focused on obtaining the displacement field in the area of interest (large strains) employing a Digital Image Correlation device, in addition to the measurement of the usual global load-displacement curve. In order to reproduce the behaviour of the BMG at stake, several constitutive equations were considered with growing complexity: von Mises, Drucker-Prager (pressure dependence), free volume based model as well as a viscoplastic Coulomb-Mohr type model. The two latter were implemented as user-material in a Finite Element computation code. The results of these investigations including experiments and computational simulations are discussed.

本文言語English
ページ(範囲)S236-S241
ジャーナルJournal of Alloys and Compounds
586
SUPPL. 1
DOI
出版ステータスPublished - 2014

ASJC Scopus subject areas

  • 材料力学
  • 機械工学
  • 金属および合金
  • 材料化学

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