Abstract
Constitutive models based on the multilaminate framework naturally account for strain-induced anisotropy, but inherent anisotropy needs additional considerations. A recently introduced feature is the capability of the model to take into account anisotropic elasticity in the small strain range. The implications of taking into account anisotropy of small strain stiffness for the analysis of geotechnical problems is addressed in this paper by solving two relatively simple benchmark problems: a deep excavation and a strip footing. It follows from these studies that, if displacements and thus strains remain moderate (which is often the case for these types of problems), the influence of small strain stiffness anisotropy is more pronounced compared with problems where relatively large strains occur. However, the influence of stiffness anisotropy can be approximately accounted for by using the average of the axial stiffnesses.
| Original language | English |
|---|---|
| Pages (from-to) | 861-868 |
| Number of pages | 8 |
| Journal | International Journal of Geomechanics |
| Volume | 13 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 26 Nov 2013 |
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Keywords
- Anisotropic small strain stiffness
- Multilaminate model
ASJC Scopus subject areas
- Soil Science
Cite this
Influence of anisotropic small strain stiffness on the deformation behavior of geotechnical structures. / Schädlich, Bert; Schweiger, Helmut F.
In: International Journal of Geomechanics, Vol. 13, No. 6, 26.11.2013, p. 861-868.Research output: Contribution to journal › Article › Research › peer-review
}
TY - JOUR
T1 - Influence of anisotropic small strain stiffness on the deformation behavior of geotechnical structures
AU - Schädlich, Bert
AU - Schweiger, Helmut F.
PY - 2013/11/26
Y1 - 2013/11/26
N2 - Constitutive models based on the multilaminate framework naturally account for strain-induced anisotropy, but inherent anisotropy needs additional considerations. A recently introduced feature is the capability of the model to take into account anisotropic elasticity in the small strain range. The implications of taking into account anisotropy of small strain stiffness for the analysis of geotechnical problems is addressed in this paper by solving two relatively simple benchmark problems: a deep excavation and a strip footing. It follows from these studies that, if displacements and thus strains remain moderate (which is often the case for these types of problems), the influence of small strain stiffness anisotropy is more pronounced compared with problems where relatively large strains occur. However, the influence of stiffness anisotropy can be approximately accounted for by using the average of the axial stiffnesses.
AB - Constitutive models based on the multilaminate framework naturally account for strain-induced anisotropy, but inherent anisotropy needs additional considerations. A recently introduced feature is the capability of the model to take into account anisotropic elasticity in the small strain range. The implications of taking into account anisotropy of small strain stiffness for the analysis of geotechnical problems is addressed in this paper by solving two relatively simple benchmark problems: a deep excavation and a strip footing. It follows from these studies that, if displacements and thus strains remain moderate (which is often the case for these types of problems), the influence of small strain stiffness anisotropy is more pronounced compared with problems where relatively large strains occur. However, the influence of stiffness anisotropy can be approximately accounted for by using the average of the axial stiffnesses.
KW - Anisotropic small strain stiffness
KW - Multilaminate model
UR - http://www.scopus.com/inward/record.url?scp=84888047940&partnerID=8YFLogxK
U2 - 10.1061/(ASCE)GM.1943-5622.0000286
DO - 10.1061/(ASCE)GM.1943-5622.0000286
M3 - Article
VL - 13
SP - 861
EP - 868
JO - International Journal of Geomechanics
JF - International Journal of Geomechanics
SN - 1532-3641
IS - 6
ER -