Improved numerical algorithms for frictional contact in pile penetration analysis

authored by: Daichao Sheng, Peter Wriggers, Scott W. Sloan
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.
Organisation(s): Institute of Mechanics and Computational Mechanics
External Organisation(s): University of Newcastle
Type: Article
Journal: Computers and geotechnics
Volume: 33
Pages: 341-354
No. of pages: 14
ISSN: 0266-352X
Publication date: 2006
Publication status: Published
Peer reviewed: Yes
ASJC Scopus subject areas: Geotechnical Engineering and Engineering Geology, Computer Science Applications
Electronic version(s): https://doi.org/10.1016/j.compgeo.2006.06.001 (Access: Unknown)
: Details in the research portal "Research@Leibniz University"

BibTeX

@article{146b48c28096481abfd7e62ec7e8dc16,
title = "Improved numerical algorithms for frictional contact in pile penetration analysis",
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 B{\'e}zier 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, B{\'e}zier polynomial, Frictional contact, Pile",
author = "Daichao Sheng and Peter Wriggers and Sloan, {Scott W.}",
year = "2006",
doi = "10.1016/j.compgeo.2006.06.001",
language = "English",
volume = "33",
pages = "341--354",
journal = "Computers and geotechnics",
issn = "0266-352X",
publisher = "Elsevier BV",
number = "6-7",
}