An Iterative FEA Scheme for Analysis of Micro-Pillar Compression Test

Abstract:

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In this study, we propose an interesting scheme for analyzing micro-pillar compression test results based on finite element method. It uses only load and displacement data measured by micro-pillar compression test, a framework of conventional incremental metal plasticity, and an iterative scheme for updating the material parameters. This is an inverse approach to determine the constitutive relation of materials based on experimentally measured load and displacement. As a demonstrative example, Ni-Co micro-pillars with a diameter of 10 γŽ› and a height of 20 γŽ› were fabricated by micro-machining process, and their load-displacement data were measured by a micro-pillar compression tester. Using the proposed scheme and the measured load-displacement data, the stress-strain curves for the Ni-Co micro-pillars were estimated.

Info:

Periodical:

Key Engineering Materials (Volumes 417-418)

Edited by:

M.H Aliabadi, S. Abela, S. Baragetti, M. Guagliano and Han-Seung Lee

Pages:

189-192

DOI:

10.4028/www.scientific.net/KEM.417-418.189

Citation:

J. H. Kim et al., "An Iterative FEA Scheme for Analysis of Micro-Pillar Compression Test", Key Engineering Materials, Vols. 417-418, pp. 189-192, 2010

Online since:

October 2009

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Price:

$35.00

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