Application of HDMR method to reliability assessment of a single pile subjected to lateral load

Bauer, J.; Kozubal, Janusz; Puła, Wojciech; Wyjadłowski, Marek

doi:10.2478/sgm031203

Cited by 13 publications

(6 citation statements)

References 24 publications

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“…The task was modelled numerically using the finite element method (FEM) with an elastic material for CMC subjected to elasto-plastic material stretched on one dimensional random field along with forces based on the p-y method. The numerical variant of the task was previously presented in [4, 5] for independent time conditions without deterioration.…”

Section: Introductionmentioning

confidence: 99%

Probabilistic analysis of a concrete column in an aggressive soil environment

2019

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Sulphate attack is one of the most important factors that limit the lifetime of pure concrete constructions. Harsh environmental conditions have a large impact on the operational costs of concrete columns or piles dipped into soil. The results are non-deterministic; therefore, reliability analysis is often used. The strength characteristics of the substrate around the construction were modelled as one-dimensional prismatic beams related with random p-y curves. Sulphate deterioration is defined as a set of random variables jointed with two dimensional mechanical systems at acceptable levels. Fick’s second law describes the penetration of sulphate ingress into pure concrete with explicit numerical solutions for boundary conditions and an increase in the transition factor under the progress of sulphate ingress. This process was partially solved via analytical methods for sulphate ion transport and numerically for a random field. This solves the mechanical task and determines the system reliability. A numerical example is provided to illustrate the proposed method to prevent unexpected structural failures during column service life. The proposed methodology can assist designers and can help to make decisions on existing foundations to ensure the safety of geotechnical construction.

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Section: Introductionmentioning

confidence: 99%

Probabilistic analysis of a concrete column in an aggressive soil environment

2019

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“…HDMR tools have been employed for constructing a model from laboratory data, finite element modeling, inverse reliability problems, structural damage identification, etc. [11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Modeling of delamination in fiber-reinforced composite using high-dimensional model representation-based cohesive zone model

Rao

Balu

2019

J Braz. Soc. Mech. Sci. Eng.

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Prediction of delamination failure is challenging when the researchers try to achieve the task without overburdening the available computational resources. One of the most powerful computational models to predict the crack initiation and propagation is cohesive zone model (CZM), which has become prominent in the crack propagation studies. This paper proposes a novel CZM using high-dimensional model representation (HDMR) to capture the steady-state energy release rate (ERR) of a double-cantilever beam (DCB) under mode I loading. The finite element models are created using HDMR-based load and crack length response functions. Initially, the model is developed for 51-mm crack size DCB specimens, and the developed HDMR-based CZM is then used to predict the ERR variations of 76.2-mm crack size DCB model. Comparisons have been made between the available unidirectional composite (IM7/977-3) experimental data and the numerical results obtained from the 51-mm and 76.2-mm initial crack size DCB specimens. In order to demonstrate the efficiency of the proposed model, the results of the second-order nonlinear regression model using RSM are used for the comparison study. The results show that the proposed method is computationally efficient in capturing the delamination strength.

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“…This includes both the constant development of new piling technologies and also more accurate ways of analyzing pile working conditions which constitute the basic method for design and verification of adopted design solutions (as the reference test). The new developments in the field of reliability-based design also demand high accuracy of measured results [ 1 , 10 , 11 ]. Nevertheless, SLT is still considered to be the most trustworthy method of pile capacity evaluation.…”

Section: Introductionmentioning

confidence: 99%

Accuracy Assessment of Semi-Automatic Measuring Techniques Applied to Displacement Control in Self-Balanced Pile Capacity Testing Appliance

Muszyński

Rybak

Kaczor

2018

Sensors

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Static load tests of foundation piles are the basic method for the designing or verification of adopted design solutions which concern the foundation of a building structure. Preparation of a typical test station using the so-called inverted beam method is very expensive and labor-intensive. The settlement values of the loaded pile are usually recorded using accurate dial gauges. These gauges are attached to a reference beam located in close proximity to the pile under test, which may cause systematic errors (difficult to detect) caused by the displacement of the adopted reference beam. The application of geodetic methods makes it possible to maintain an independent, external reference system, and to verify the readouts from dial gauges. The article presents an innovative instrumentation for a self-balanced stand for the static load test made from a closed-end, double steel pipe. Instead of typical, precise geometric leveling, the semi-automatic measuring techniques were used: motorized total station measurement and terrestrial laser scanning controlled by a computer. The processing of the acquired data made it possible to determine the vertical displacements of both parts of the examined pile and compare displacements with the results from the dial gauges. On the basis of the excess of the collected observations, it was possible to assess the accuracy, which confirmed the usefulness of measuring techniques under study.

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Application of HDMR method to reliability assessment of a single pile subjected to lateral load

Cited by 13 publications

References 24 publications

Probabilistic analysis of a concrete column in an aggressive soil environment

Probabilistic analysis of a concrete column in an aggressive soil environment

Modeling of delamination in fiber-reinforced composite using high-dimensional model representation-based cohesive zone model

Accuracy Assessment of Semi-Automatic Measuring Techniques Applied to Displacement Control in Self-Balanced Pile Capacity Testing Appliance

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