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A constitutive model for EPS geofoam experimental investigation and theoretical development
Wong, Henry K. and Leo, Chin J. (2007). A constitutive model for EPS geofoam experimental investigation and theoretical development. In: Veidt, Martin, Albermani, Faris, Daniel, Bill, Griffiths, John, Hargreaves, Doug, McAree, Ross, Meehan, Paul and Tan, Andy, Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007). 5th Australasian Congress on Applied Mechanics (ACAM 2007), Brisbane, Australia, (533-538). 10-12 December, 2007.
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| Attached Files (Some files may be inaccessible until you login with your UQ eSpace credentials) |
| Name |
Description |
MIMEType |
Size |
Downloads |
C4.2.pdf
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Session C4.2: EPS geofoam: Leo papers |
application/pdf |
366.95KB |
76 |
| Author(s) |
Wong, Henry K.
Leo, Chin J.
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| Title of paper |
A constitutive model for EPS geofoam experimental investigation and theoretical development
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| Conference name |
5th Australasian Congress on Applied Mechanics (ACAM 2007)
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| Conference location |
Brisbane, Australia
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| Conference dates |
10-12 December, 2007
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| Proceedings title |
Proceedings of the 5th Australasian Congress on Applied Mechanics (ACAM 2007)
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| Editor(s) |
Veidt, Martin
Albermani, Faris
Daniel, Bill
Griffiths, John
Hargreaves, Doug
McAree, Ross
Meehan, Paul
Tan, Andy
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| Place published |
Brisbane
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| Publisher |
Engineers Australia
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| Publication date |
2007
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| Year available |
2008
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| Volume number |
1
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| ISBN |
0 8582 5862 5
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| Start page |
533
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| End page |
538
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| Total pages |
6
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| Collection year |
2007
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| Language |
eng
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| Abstract/Summary |
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.
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| Subjects |
290501 Mechanical Engineering
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| Keyword(s) |
constitutive model
elasto-plastic
EPS
strain hardening
triaxial tests
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