Numerical modeling of single closed and open-ended pipe pile embedded in dry soil layers under coupled static and dynamic loadings

Duaa Al-Jeznawi; Ismacahyadi Bagus Mohamed Jais; Bushra S. Albusoda; Norazlan Khalid

doi:10.1515/jmbm-2022-0055

Details

Publication Date

Sat Jan 01 2022

Journal Name

Journal Of The Mechanical Behavior Of Materials

Volume

31

DOI

10.1515/jmbm-2022-0055

Choose Citation Style

Statistics

View publication

214

Statistics

(13)

(10)

Numerical modeling of single closed and open-ended pipe pile embedded in dry soil layers under coupled static and dynamic loadings

numerical modeling

coupled static–dynamic load

plug soil

frictional resistance

shear stress reversal

Duaa Al-Jeznawi

Ismacahyadi Bagus Mohamed Jais

Bushra S. Albusoda

Norazlan Khalid

...Show More Authors

Abstract<p>For the design of a deep foundation, piles are presumed to transfer the axial and lateral loads into the ground. However, the effects of the combined loads are generally ignored in engineering practice since there are uncertainties to the precise definition of soil–pile interactions. Hence, for technical discussions of the soil–pile interactions due to dynamic loads, a three-dimensional finite element model was developed to evaluate the soil pile performance based on the 1 g shaking table test. The static loads consisted of 50% of the allowable vertical pile capacity and 50% of the allowable lateral pile capacity. The dynamic loads were taken from the recorded data of the Kobe earthquake. The current numerical model takes into account the material non-linearity and the non-linearity of pile-to-surrounded soil contact surfaces. A lateral ground acceleration was adapted to simulate the seismic effects. This research emphasizes modeling the 1 g model by adapting MIDAS GTS NX software. This will, in turn, present the main findings from a single pile model under a combined static and dynamic load. Consequently, the main results were first validated and then used for further deep investigations. The numerical results predicted a slightly higher displacement in the horizontal and vertical directions than the 1 g shaking table. The shear stress–shear strain relationship was predicted. Positive frictional resistance for the closed-ended pile was captured during the first 5 s when low values of acceleration were applied and, consequently, the pile resistance decreased and became negative. Internal and external frictional resistance was captured for the open-ended pipe pile. Overall, frictional resistance values were decreased with time until they reached the last time step with a minimum value. As a result, the evaluation of the current study can be used as a guide for analysis and preliminary design in engineering practice.</p>

Publication Date

Sun Jan 01 2023

Journal Name

Journal Of Ecological Engineering

Cadmium Removal from Contaminated Soil by Electro-Kinetic Method

Laith Hamdan

Ali Omran

Jinan

...Show More Authors

View Publication

(6)

Publication Date

Tue May 05 2015

Journal Name

International Journal Of Advanced Scientific And Technical Research

Fuzzy Stochastic Probability of The Solution of Single Stationary Non- Homogeneous Linear Fuzzy Random Differential Equations

Ahmed E. Abdul-Nabi

Niran S

Eman A

...Show More Authors

Publication Date

Fri Jan 01 2016

Journal Name

Iraqi Journal Of Agricultural Sciences

Effect of extraction of sheep manure with warm water on the growth and nutrients content of tomato plants under cultivation of plastic houses

N.J.K.

Ahmed Hashim

...Show More Authors

Publication Date

Tue Aug 22 2023

Journal Name

Advances In Structural Engineering

Experimental and finite element analysis of reinforced concrete multi-cell box girders retrofitted with carbon fiber reinforced polymer strips under torsion

Abbas A

Hwa Kian

Abeer A

Ayman

Mohannad H

Esraa M

Teghreed H

...Show More Authors

This study expands the state of the art in studies that assess torsional retrofit of reinforced concrete (RC) multi-cell box girders with carbon fiber reinforced polymer (CFRP) strips. The torsional behavior of non-damaged and pre-damaged RC multi-cell box girder specimens externally retrofitted by CFRP strips was investigated through a series of laboratory experiments. It was found that retrofitting the pre-damaged specimens with CFRP strips increased the ultimate torsional capacity by more than 50% as compared to the un-damaged specimens subjected to equivalent retrofitting. This indicated that the retrofit has been less effective for the girder specimen that did not develop distortion beforehand as a result of pre-loading. From

View Publication

(6)

(5)

Publication Date

Sun Jun 01 2014

Journal Name

Baghdad Science Journal

Ingots Defects under the influence of Solidification and Freezing Conditions. : Farouk Mahdi Mansour|Mustafa A. Rijab Al-Najar|Amera kanan Asfur

Baghdad Science

...Show More Authors

The results of research to reach the conditions that prevents the emergence of primary or secondary voids and achieve worker benefit from molded by almost 100%, which was the situation that cast poured in a mold heated and insulated from all sides to achieve freezing directional full starting from the region remote from the casting and ending then. Has also been compared to the microscopic structure of the resulting castings of various molding conditions, as these conditions have achieved the best sound microscopic structures.

View Publication

Publication Date

Tue Aug 22 2023

Journal Name

Advances In Structural Engineering

Experimental and finite element analysis of reinforced concrete multi-cell box girders retrofitted with carbon fiber reinforced polymer strips under torsion

Abbas A

Hwa Kian

Abeer A

Ayman

Mohannad H

Esraa M

Teghreed H.

...Show More Authors

This study expands the state of the art in studies that assess torsional retrofit of reinforced concrete (RC) multi-cell box girders with carbon fiber reinforced polymer (CFRP) strips. The torsional behavior of non-damaged and pre-damaged RC multi-cell box girder specimens externally retrofitted by CFRP strips was investigated through a series of laboratory experiments. It was found that retrofitting the pre-damaged specimens with CFRP strips increased the ultimate torsional capacity by more than 50% as compared to the un-damaged specimens subjected to equivalent retrofitting. This indicated that the retrofit has been less effective for the girder specimen that did not develop distortion beforehand as a result of pre-loading. From

(7)

(6)

Publication Date

Sat Nov 15 2025

Journal Name

Journal Of Physical Education

Special Exercises Using A Proposed Training Apprentice And Its Effect On Some Biomechanical Indicators and Achieving 110m Hurdles For players Under 20 years old

Intisar

Zahaa

...Show More Authors

View Publication

Publication Date

Mon Jan 13 2020

Journal Name

Day 3 Wed, January 15, 2020

Numerical Simulation of Gas Lift Optimization Using Genetic Algorithm for a Middle East Oil Field: Feasibility Study

Constrained optimization

Gas lifts

Gases

Gasoline

Genetic algorithms

Life cycle

Natural gas fields

Numerical models

Offshore oil well production

Oil fields

Mustafa

Mofazzal

Omar

Akim

Abbas

...Show More Authors

<p>Gas-lift technique plays an important role in sustaining oil production, especially from a mature field when the reservoirs’ natural energy becomes insufficient. However, optimally allocation of the gas injection rate in a large field through its gas-lift network system towards maximization of oil production rate is a challenging task. The conventional gas-lift optimization problems may become inefficient and incapable of modelling the gas-lift optimization in a large network system with problems associated with multi-objective, multi-constrained, and limited gas injection rate. The key objective of this study is to assess the feasibility of utilizing the Genetic Algorithm (GA) technique to optimize t</p> ... Show More

View Publication

(15)

(8)

Publication Date

Sun Jan 01 2023

Journal Name

8th Engineering And 2nd International Conference For College Of Engineering – University Of Baghdad: Coec8-2021 Proceedings

Preliminary quality assurance of printgrammetry technique-3D modeling from Google Earth 3D imagery data

Hussein K.

Fanar M.

Rana M.

...Show More Authors

View Publication

Publication Date

Tue Oct 19 2021

Journal Name

Biochem

A Neuro-Fuzzy Technique for the Modeling of β-Glucosidase Activity from Agaricus bisporus

Bahaa

...Show More Authors

This paper proposes a neuro-fuzzy system to model β-glucosidase activity based on the reaction’s pH level and temperature. The developed fuzzy inference system includes two input variables (pH level and temperature) and one output (enzyme activity). The multi-input fuzzy inference system was developed in two stages: first, developing a single input-single output fuzzy inference system for each input variable (pH, temperature) separately, using the robust adaptive network-based fuzzy inference system (ANFIS) approach. The neural network learning techniques were used to tune the membership functions based on previously published experimental data for β-glucosidase. Second, each input’s optimized membership functions from the ANF

View Publication

1 2 ... 144 145 146 147 ... 2900 2901