Paper S2P 2010 Favier-Atksinson 2.pdf (961.99 kB)
Download file

Analysing the semi-solid response under rapid compression tests using multi-scale modelling and experiments

Download (961.99 kB)
journal contribution
posted on 17.11.2010, 13:39 by Véronique Favier, Helen V. Atkinson
Simulating semi-solid metal forming requires modelling semi-solid behaviour. However, such modelling is difficult because semi-solid behavior is thixotropic and depends on the liquid-solid spatial distribution within the material. In order to better understand and model relationships between microstructure and behavior, this paper presents a model based on micromechanical approaches and homogenisation techniques. This model is an extension of a previous model established in a pure viscoplastic framework to account for elasticity. Indeed, experimental load-displacement signals revealed the presence of an elastic-type response in the earlier stages of deformation when semi-solids are loaded under rapid compression. This elastic feature of the behaviour is attributed to the response of the porous solid skeleton saturated by incompressible liquid. A good quantitative agreement is found between the elastic-viscoplastic predicted response and the experimental data. More precisely, the strong initial rising part of the load-displacement curve, the peak load and the subsequent fall in load are well captured. The effect of solid fraction on mechanical response is in qualitative agreement with experiments.



Transactions of Nonferrous Metals Society of China, 2010, 20 (9), pp. 1691-1695

Published in

Transactions of Nonferrous Metals Society of China





Copyright date


Available date


Publisher version



Usage metrics