WIT Press

Plastic Flow Percolation Across A Microstructure With Pores

Price

Free (open access)

Paper DOI

10.2495/FR980511

Volume

19

Pages

10

Published

1998

Size

839 kb

Author(s)

P. Matic & A. Kee

Abstract

A method to estimate the yield surface of porous metals, by identifying evolution of local yield connectivity and the onset of local yield percolation across the microstructure from finite element analyses, is investigated The finite element analyses are used to model the types of pore morphologies that have been observed in porous metals. Linear superposition of basis deformation cases is used to generate arbitrary applied elastic biaxial deformation states used to estimate the yield surface, in place of more costly and time consuming nonlinear analyses. & Introduction Macroscopic plastic flow is a

Keywords