Details
| Original language | English |
|---|---|
| Pages (from-to) | 341-354 |
| Number of pages | 14 |
| Journal | Computers and geotechnics |
| Volume | 33 |
| Issue number | 6-7 |
| Publication status | Published - 2006 |
Abstract
This paper presents a numerical formulation for frictional contact problems associated with pile penetration. The frictional contact at the soil-pile interface is formulated using the theory of hardening/softening plasticity, so that advanced models for the interface can be dealt with. A smooth discretisation of the pile surface is proposed using Bézier polynomials. An automatic load stepping scheme is proposed, which features an error control algorithm and automatic subincrementation of the load increments. The numerical algorithms are then used to analyse the installation process of pushed-in axial piles. It is shown that the smooth discretisation of the pile surface is effective in reducing the oscillation in the predicted pile resistances and the automatic load stepping scheme outperforms the classical Newton-Raphson scheme for this type of problem.
Keywords
- Algorithm, Automatic load stepping, Bézier polynomial, Frictional contact, Pile
ASJC Scopus subject areas
- Earth and Planetary Sciences(all)
- Geotechnical Engineering and Engineering Geology
- Computer Science(all)
- Computer Science Applications
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In: Computers and geotechnics, Vol. 33, No. 6-7, 2006, p. 341-354.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Improved numerical algorithms for frictional contact in pile penetration analysis
AU - Sheng, Daichao
AU - Wriggers, Peter
AU - Sloan, Scott W.
PY - 2006
Y1 - 2006
N2 - This paper presents a numerical formulation for frictional contact problems associated with pile penetration. The frictional contact at the soil-pile interface is formulated using the theory of hardening/softening plasticity, so that advanced models for the interface can be dealt with. A smooth discretisation of the pile surface is proposed using Bézier polynomials. An automatic load stepping scheme is proposed, which features an error control algorithm and automatic subincrementation of the load increments. The numerical algorithms are then used to analyse the installation process of pushed-in axial piles. It is shown that the smooth discretisation of the pile surface is effective in reducing the oscillation in the predicted pile resistances and the automatic load stepping scheme outperforms the classical Newton-Raphson scheme for this type of problem.
AB - This paper presents a numerical formulation for frictional contact problems associated with pile penetration. The frictional contact at the soil-pile interface is formulated using the theory of hardening/softening plasticity, so that advanced models for the interface can be dealt with. A smooth discretisation of the pile surface is proposed using Bézier polynomials. An automatic load stepping scheme is proposed, which features an error control algorithm and automatic subincrementation of the load increments. The numerical algorithms are then used to analyse the installation process of pushed-in axial piles. It is shown that the smooth discretisation of the pile surface is effective in reducing the oscillation in the predicted pile resistances and the automatic load stepping scheme outperforms the classical Newton-Raphson scheme for this type of problem.
KW - Algorithm
KW - Automatic load stepping
KW - Bézier polynomial
KW - Frictional contact
KW - Pile
UR - http://www.scopus.com/inward/record.url?scp=33750729311&partnerID=8YFLogxK
U2 - 10.1016/j.compgeo.2006.06.001
DO - 10.1016/j.compgeo.2006.06.001
M3 - Article
AN - SCOPUS:33750729311
VL - 33
SP - 341
EP - 354
JO - Computers and geotechnics
JF - Computers and geotechnics
SN - 0266-352X
IS - 6-7
ER -