Optimization of Cutting Parameters on Delamination of Drilling Glass-Polyester Composites

Majid Habeeb Faidh-Allah; Sanad Abdulkareem Ismail

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Publication Date

Thu Feb 01 2018

Journal Name

Journal Of Engineering

Volume

24

Issue Number

2

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Optimization of Cutting Parameters on Delamination of Drilling Glass-Polyester Composites

composite materials

drilling

delamination

Taguchi method.

Majid Habeeb Faidh-Allah

Sanad Abdulkareem Ismail

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This paper attempted to study the effect of cutting parameters (spindle speed and feed rate) on delamination phenomena during the drilling glass-polyester composites. Drilling process was done by CNC machine with 10 mm diameter of high-speed steel (HSS) drill bit. Taguchi technique with L16 orthogonal layout was used to analyze the effective parameters on delamination factor. The optimal experiment was no. 13 with spindle speed 1273 rpm and feed 0.05 mm/rev with minimum delamination factor 1.28.

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Publication Date

Wed May 01 2019

Journal Name

Thin Solid Films

Studies of annealing impact on the morphological, opto-dielectric and mechanical behaviors of molybdenum-doped CrN coatings

M. Mahbubur

Khalil

Hatem

Amun

Xiaoli

Humayun

T.S.Y.

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Wed Dec 01 2021

Journal Name

Structures

The effect of ground motion characteristics on the fragility analysis of reinforced concrete frame buildings in Australia

The seismic performance of buildings can be assessed through fragility analysis as it yields the probability of the demand exceeding the capacity at a specified level of intensity. Although it's well-identified that earthquake uncertainties dominate the fragility characteristics

the influence of the characteristics of the earthquake on the fragility analysis is not well investigated. This study aims to compare the effect of earthquake characteristics on the fragility values of typical buildings in Australia. To achieve this

a typical reinforced concrete building is selected and modeled using a finite element approach. Various ground motion suites

such as near-fault

far-fault

and long-duration are selected

and the fragility analysis has been carried out for each ground motion suite. It is observed that the variation in the median values of the collapse fragilities can be as high as 48% between short-duration and long-duration ground motions

and about 40% between long-duration and pulse-like ground motions.

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Mon Jul 04 2022

Journal Name

Journal Of Petroleum Exploration And Production Technology

Effect of acid treatment on the geomechanical properties of rocks: an experimental investigation in Ahdeb oil field

Acidizing

Wormhole

Rock mechanical properties

Rock petrophysical properties

Core flooding

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Ayad A.

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Sat Apr 01 2023

Journal Name

Iop Conference Series: Earth And Environmental Science

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AbstractDuring the 2016–2017 and 2017–2018 winter semesters, researchers from the College of Agricultural Engineering Sciences at the University of Baghdad conducted a field experiment at the university’s research station. This inquiry set out to examine how spraying wheat plants with vitamins B9 (Folic acid) and E (Tocopherol) affected certain yield characteristics (Al-Fourat variety). The studies were set up as three repetitions of a factorial experiment using a Randomized Full Block Design. Vitamin E was sprayed at 0, 1, and 2 ml.L-1, while vitamin B9 was sprayed at 0, 1, and 3 ml.L-1 (0, 250, and 500 mg. L-1). While the ... Show More

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Thu Aug 08 2024

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Estrogen effect

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Zahraa

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Belal

Ali Hasan

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Contracting cancer typically induces a state of terror among the individuals who are affected. Exploring how glucose excess, estrogen excess, and anxiety work together to affect the speed at which breast cancer cells multiply and the immune system’s response model is necessary to conceive of ways to stop the spread of cancer. This paper proposes a mathematical model to investigate the impact of psychological panic, glucose excess, and estrogen excess on the interaction of cancer and immunity. The proposed model is precisely described. The focus of the model’s dynamic analysis is to identify the potential equilibrium locations. According to the analysis, it is possible to establish four equilibrium positions. The stability analys

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Wed Jan 01 2014

Journal Name

Asian Journal Of Chemistry

Effect of Solvents on Extraction and Adsorption of Natural Dyes Extracted from Cordyline fruticosa and Hylocereus polyrhizus

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Publication Date

Sat Aug 31 2019

Journal Name

Iraqi Journal Of Physics

The Q-switched Nd:YAG laser shock processing effects on mechanical properties of C86400 Cu-Zn alloy: Q-switched Nd:YAG laser shock processing effects on mechanical properties of C86400 Cu-Zn alloy

mays oday

Dr. Razi

Dr. Abdul Hadi

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The aim of this paper is to investigate the effects of Nd:YAG laser shock processing (LSP) on micro-hardness and surface roughness of 86400Cu-Zn alloy. X-ray fluorescence technique was used to analyze the chemical composition of this alloy. LSP treatment was performed with a Q-switched Nd: YAG laser with a wavelength of 1064 nm. The results show that laser shock processing can significantly increase. The micro-hardness and surface roughness of the LSP-treated sample. Vickers diamond indenter was used to measure the micro-hardness of all samples with different laser pulse energy and the different number of laser pulses. It is found that the metal hardness can be significantly increased to more than 80% by increasing the laser energy and t

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