Results 31 to 40 of about 42,945,447 (298)

Evaluation of sand p–y curves by predicting both monopile lateral response and OWT natural frequency

open access: yesStudia Geotechnica et Mechanica, 2022
Extending the use of the p–y curves included in the regulation codes API and DNV to design large-diameter monopiles supporting offshore wind turbines (OWTs) was unsuccessful as it resulted in an inaccurate estimation of the monopile behavior.
Amel Douifi   +3 more
doaj   +1 more source

Nonparametric IV estimation of shape-invariant Engel curves [PDF]

open access: yes, 2003
This paper concerns the identification and estimation of a shape-invariant Engel curve system with endogenous total expenditure. The shape-invariant specification involves a common shift parameter for each demographic group in a pooled system of Engel
Richard Blundell   +8 more
core   +1 more source

Curves with rational chord-length parametrization [PDF]

open access: yes, 2008
It has been recently proved that rational quadratic circles in standard Bezier form are parameterized by chord-length. If we consider that standard circles coincide with the isoparametric curves in a system of bipolar coordinates, this property comes as ...
Fernández Jambrina, Leonardo   +1 more
core   +1 more source

Progressive surface modeling scheme from unorganised curves [PDF]

open access: yes, 2006
This paper presents a novel surface modelling scheme to construct a freeform surface progressively from unorganised curves representing the boundary and interior characteristic curves.
Wright, David   +3 more
core   +6 more sources

Numerical derivation of CPT-based p–y curves for piles in sand [PDF]

open access: yesGéotechnique, 2014
The formulations for the lateral load–displacement (p–y) springs conventionally used for the analysis of laterally loaded piles have been based largely on the back-analysis of the performance of small-scale instrumented piles subjected to lateral load.
Suryasentana, S. K., Lehane, B. M.
openaire   +3 more sources

Scour effects on p-y curves for shallowly embedded piles in sand

open access: yes, 2016
Soil scour around a shallowly embedded pile can significantly compromise its lateral response, reducing both stiffness and capacity. Estimation of the lateral pile response must take into account both the scour-hole geometry and the overconsolidation ...
Lehane BM   +5 more
core   +1 more source

Numerical Study on the Lateral Load Response of Offshore Monopile Foundations in Clay: Effect of Slenderness Ratio

open access: yesApplied Sciences
To meet growing energy demands, offshore wind turbines (OWTs) with higher energy outputs are being developed, presenting increased challenges for their foundation design.
Ali Khezri, Hongbae Park, Daeyong Lee
doaj   +1 more source

Static and cyclic p-y curves for laterally loaded piles in soft clay

open access: yesYantu gongcheng xuebao, 2017
A pseudo-three-dimensional analysis method on static p-y curves of laterally loaded piles in soft clay is conducted. This method is based on the two-dimensional elastic fictitious loading upper bound limit analysis approach considering the stress-strain ...
HUANG Mao-song 1, 2, MA Hao 1, 2, LI Sen 1, 2, YU Jian 1, 2, ZHANG Chen-rong 1, 2
doaj   +1 more source

Minimax properties of Fréchet means of discretely sampled curves [PDF]

open access: yes, 2012
We study the problem of estimating a mean pattern from a set of similar curves in the setting where the variability in the data is due to random geometric deformations and additive noise.
Gendre, Xavier   +3 more
core   +1 more source

Nonlinear Seismic Response of a Long-Span Suspension Bridge Under Sequential Ground Motions Considering Pile Foundation Soil–Structure Interaction

open access: yesCivilEng
This study presents the nonlinear seismic analysis of a large-scale suspension bridge under multiple sequential earthquake records. A detailed 3D finite element model is developed in SAP2000, incorporating CFST pylons, a composite deck, and a main cable ...
Lydia Konstantina Georgiou Zonara   +1 more
doaj   +1 more source

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