Modeling and Simulation of Porous Elastoviscoplastic Material
Publication: Journal of Engineering Mechanics
Volume 130, Issue 5
Abstract
Many materials exhibit elasto–visco–plastic behavior when subjected to loadings with certain strain rate. Examples include natural materials such as metals, clays, and soils and manmade materials such as some biomimic materials. Some voids may exist or be introduced in these materials. The effects of the voids on the material response are important in predicting the strength, reliability, and service life of structural systems containing these materials. This paper presents the results of applying a statistical micromechanical approach to describe the macroscopic behavior of elasto–visco–plastic materials containing many randomly dispersed spherical voids. Most existing micromechanics based models are only applicable to monotonic proportional loadings. The limitation is removed by integrating the material model into the framework of continuum plasticity. With the discrete integration algorithm and local return mapping algorithm, the proposed computation method is applicable to any loading and unloading histories and is ready for implementing into finite element analysis.
Get full access to this article
View all available purchase options and get full access to this article.
References
Ju, J. W., and Tseng, K. H.(1996). “Effective elastoplastic behavior of two-phase ductile matrix composites: a micromechanical framework.” Int. J. Solids Struct., 33(29), 4267–4291.
Ju, J. W., and Tseng, K. H.(1997). “Effective elastoplastic algorithms for ductile matrix composites.” J. Eng. Mech., 123(3), 260–266.
Mura, T. (1987). Micromechanics of defects in solids, 2nd Revised Ed., Kluwer Academic, Boston.
Netmat-Nasser, S. and Hori, M. (1999). Micromechanics: overall properties of heterogeneous materials, 2nd Revised Ed., North-Holland, Amsterdam, The Netherlands.
Perrin, G.(2002). “Homogenized behavior equations for porous Binham viscoplastic material.” J. Eng. Mech., 128(8), 885–888.
Qiu, Y. P., and Weng, G. J.(1993). “Plastic potential and yield function of porous materials with aligned and randomly oriented spherical voids.” Int. J. Plast., 9, 271–290.
Roberts, A. P., and Garboczi, E. J.(2000). “Elastic properties of model porous ceramics.” J. Am. Ceram. Soc., 83(12), 3041–3048.
Yin, J.-H., Zhu, J.-G., and Graham, J.(2002). “A new elastic viscoplastic model for time-dependent behaviour of normal and overconsolidated clays: theory and verification.” Can. Geotech. J., 39, 157–173.
Information & Authors
Information
Published In
Copyright
Copyright © 2004 American Society of Civil Engineers.
History
Received: Oct 18, 2002
Accepted: Jun 13, 2003
Published online: Apr 15, 2004
Published in print: May 2004
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.