A constitutive model for EPS geofoam : experimental investigation and theoretical development (290805)

Henry Wong; Chin Jian Leo; Martin Veidt; Faris Albermani; Bill Daniel; J. R. Griffiths; Doug Hargreaves; Ross McAree; Paul Meehan; Andy Tan

A constitutive model for EPS geofoam : experimental investigation and theoretical development (290805)

Henry Wong
, Chin Jian Leo
, Martin Veidt
, Faris Albermani
, Bill Daniel
, J. R. Griffiths
, Doug Hargreaves
, Ross McAree
, Paul Meehan
, Andy Tan

School of Engineering, Design & Built Environment

Research output: Chapter in Book / Conference Paper › Conference Paper

Abstract

EPS geofoam is increasingly being used as a material in geotechnical construction. This paper describes the development of a constitutive model for the material based on a series of triaxial compression tests. The geofoam specimens were subjected to a confining pressure ranging from 0 to 60 kPa and loaded to "failure". Using these results, the authors have proposed an elastoplastic hardening model with 6 independent parameters that can be calibrated from data obtained from the triaxial tests. It is shown that the constitutive model is able to correctly replicate the characteristic shearing and volumetric behaviour of the EPS geofoam under loading. The model is relatively simple to incorporate into numerical codes for geotechnical analysis.

Original language	English
Title of host publication	Proceedings of the 5th Australasian Congress on Applied Mechanics : 10-12 December 2007, Brisbane, Australia
Publisher	Engineers Australia
Number of pages	6
ISBN (Print)	0858258625
Publication status	Published - 2007
Event	Australasian Congress on Applied Mechanics - Duration: 9 Dec 2012 → …

Conference

Conference	Australasian Congress on Applied Mechanics
Period	9/12/12 → …

Keywords

expanded polystyrene geofoam
strain hardening
compression testing
shear (mechanics)
geotechnical engineering

Cite this

Wong, H., Leo, C. J., Veidt, M., Albermani, F., Daniel, B., Griffiths, J. R., Hargreaves, D., McAree, R., Meehan, P., & Tan, A. (2007). A constitutive model for EPS geofoam : experimental investigation and theoretical development (290805). In Proceedings of the 5th Australasian Congress on Applied Mechanics : 10-12 December 2007, Brisbane, Australia Engineers Australia.

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title = "A constitutive model for EPS geofoam : experimental investigation and theoretical development (290805)",

abstract = "EPS geofoam is increasingly being used as a material in geotechnical construction. This paper describes the development of a constitutive model for the material based on a series of triaxial compression tests. The geofoam specimens were subjected to a confining pressure ranging from 0 to 60 kPa and loaded to {"}failure{"}. Using these results, the authors have proposed an elastoplastic hardening model with 6 independent parameters that can be calibrated from data obtained from the triaxial tests. It is shown that the constitutive model is able to correctly replicate the characteristic shearing and volumetric behaviour of the EPS geofoam under loading. The model is relatively simple to incorporate into numerical codes for geotechnical analysis.",

keywords = "expanded polystyrene geofoam, strain hardening, compression testing, shear (mechanics), geotechnical engineering",

author = "Henry Wong and Leo, \{Chin Jian\} and Martin Veidt and Faris Albermani and Bill Daniel and Griffiths, \{J. R.\} and Doug Hargreaves and Ross McAree and Paul Meehan and Andy Tan",

year = "2007",

language = "English",

isbn = "0858258625",

booktitle = "Proceedings of the 5th Australasian Congress on Applied Mechanics : 10-12 December 2007, Brisbane, Australia",

publisher = "Engineers Australia",

note = "Australasian Congress on Applied Mechanics ; Conference date: 09-12-2012",

}

Wong, H, Leo, CJ, Veidt, M, Albermani, F, Daniel, B, Griffiths, JR, Hargreaves, D, McAree, R, Meehan, P & Tan, A 2007, A constitutive model for EPS geofoam : experimental investigation and theoretical development (290805). in Proceedings of the 5th Australasian Congress on Applied Mechanics : 10-12 December 2007, Brisbane, Australia. Engineers Australia, Australasian Congress on Applied Mechanics, 9/12/12.

TY - GEN

T1 - A constitutive model for EPS geofoam : experimental investigation and theoretical development (290805)

AU - Wong, Henry

AU - Leo, Chin Jian

AU - Veidt, Martin

AU - Albermani, Faris

AU - Daniel, Bill

AU - Griffiths, J. R.

AU - Hargreaves, Doug

AU - McAree, Ross

AU - Meehan, Paul

AU - Tan, Andy

PY - 2007

Y1 - 2007

N2 - EPS geofoam is increasingly being used as a material in geotechnical construction. This paper describes the development of a constitutive model for the material based on a series of triaxial compression tests. The geofoam specimens were subjected to a confining pressure ranging from 0 to 60 kPa and loaded to "failure". Using these results, the authors have proposed an elastoplastic hardening model with 6 independent parameters that can be calibrated from data obtained from the triaxial tests. It is shown that the constitutive model is able to correctly replicate the characteristic shearing and volumetric behaviour of the EPS geofoam under loading. The model is relatively simple to incorporate into numerical codes for geotechnical analysis.

AB - EPS geofoam is increasingly being used as a material in geotechnical construction. This paper describes the development of a constitutive model for the material based on a series of triaxial compression tests. The geofoam specimens were subjected to a confining pressure ranging from 0 to 60 kPa and loaded to "failure". Using these results, the authors have proposed an elastoplastic hardening model with 6 independent parameters that can be calibrated from data obtained from the triaxial tests. It is shown that the constitutive model is able to correctly replicate the characteristic shearing and volumetric behaviour of the EPS geofoam under loading. The model is relatively simple to incorporate into numerical codes for geotechnical analysis.

KW - expanded polystyrene geofoam

KW - strain hardening

KW - compression testing

KW - shear (mechanics)

KW - geotechnical engineering

UR - http://handle.uws.edu.au:8081/1959.7/40729

M3 - Conference Paper

SN - 0858258625

BT - Proceedings of the 5th Australasian Congress on Applied Mechanics : 10-12 December 2007, Brisbane, Australia

PB - Engineers Australia

T2 - Australasian Congress on Applied Mechanics

Y2 - 9 December 2012

ER -

A constitutive model for EPS geofoam : experimental investigation and theoretical development (290805)

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Keywords

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