Abstract
A hypoplastic model is formulated to simulate the nonlinear and irreversible behavior of loose and dense sands. Hypoplasticity provides a theoretical framework that is simpler than elastoplasticity. The failure surface that is assumed fixed in stress space is chosen as the bounding surface. All the hypoplastic properties (flow and yield directions and plastic modulus) are defined as functions of the distance to the bounding surface. The model is formulated in terms of stress invariants', the influence of Lode angle is accounted for by using an adjustable Lode dependence. The incremental stress-strain relationships are inverted and derived in a format compatible with solution techniques, such as finite element methods. The model has 12 material constants calibrated from triaxial tests. Based on the comparison of predicted and experimental results on loose and dense Sacramento River sands, it is concluded that the model is capable of predicting the drained and undrained behavior of loose and dense sands.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 1973-1994 |
| Number of pages | 22 |
| Journal | Journal of Engineering Mechanics |
| Volume | 116 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1990 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Mechanical Engineering
- Mechanics of Materials
Cite this
Hypoplastic model for sands. / Bardet, Jean-Pierre.
In: Journal of Engineering Mechanics, Vol. 116, No. 9, 1990, p. 1973-1994.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Hypoplastic model for sands
AU - Bardet, Jean-Pierre
PY - 1990
Y1 - 1990
N2 - A hypoplastic model is formulated to simulate the nonlinear and irreversible behavior of loose and dense sands. Hypoplasticity provides a theoretical framework that is simpler than elastoplasticity. The failure surface that is assumed fixed in stress space is chosen as the bounding surface. All the hypoplastic properties (flow and yield directions and plastic modulus) are defined as functions of the distance to the bounding surface. The model is formulated in terms of stress invariants', the influence of Lode angle is accounted for by using an adjustable Lode dependence. The incremental stress-strain relationships are inverted and derived in a format compatible with solution techniques, such as finite element methods. The model has 12 material constants calibrated from triaxial tests. Based on the comparison of predicted and experimental results on loose and dense Sacramento River sands, it is concluded that the model is capable of predicting the drained and undrained behavior of loose and dense sands.
AB - A hypoplastic model is formulated to simulate the nonlinear and irreversible behavior of loose and dense sands. Hypoplasticity provides a theoretical framework that is simpler than elastoplasticity. The failure surface that is assumed fixed in stress space is chosen as the bounding surface. All the hypoplastic properties (flow and yield directions and plastic modulus) are defined as functions of the distance to the bounding surface. The model is formulated in terms of stress invariants', the influence of Lode angle is accounted for by using an adjustable Lode dependence. The incremental stress-strain relationships are inverted and derived in a format compatible with solution techniques, such as finite element methods. The model has 12 material constants calibrated from triaxial tests. Based on the comparison of predicted and experimental results on loose and dense Sacramento River sands, it is concluded that the model is capable of predicting the drained and undrained behavior of loose and dense sands.
UR - http://www.scopus.com/inward/record.url?scp=0025481427&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0025481427&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)0733-9399(1990)116:9(1973)
DO - 10.1061/(ASCE)0733-9399(1990)116:9(1973)
M3 - Article
AN - SCOPUS:0025481427
VL - 116
SP - 1973
EP - 1994
JO - Journal of Engineering Mechanics - ASCE
JF - Journal of Engineering Mechanics - ASCE
SN - 0733-9399
IS - 9
ER -