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Online since: April 2015
Authors: Andrzej Kiełbus, Bartłomiej Dybowski, Mirosław Szala, Tadeusz Hejwowski
As the protectors work in water environment, one of the main degradation factors is cavitation erosion.
Introduction Magnesium alloys are promising structural material due to their low density and acceptable mechanical properties [1].
This led to development of magnesium alloys containing rare earth elements, which exhibit better properties.
As the sacrificial anodes are used mainly in protection of hulls of ships, one of the factors strongest affecting their operating time are mass losses created due to cavitation erosion.
McNaughton, Correlation of cavitation erosion behavior with mechanical properties of metals, Wear. 140 (1990) pp. 63–82
Introduction Magnesium alloys are promising structural material due to their low density and acceptable mechanical properties [1].
This led to development of magnesium alloys containing rare earth elements, which exhibit better properties.
As the sacrificial anodes are used mainly in protection of hulls of ships, one of the factors strongest affecting their operating time are mass losses created due to cavitation erosion.
McNaughton, Correlation of cavitation erosion behavior with mechanical properties of metals, Wear. 140 (1990) pp. 63–82
Online since: January 2016
Authors: Zahurin Halim, Fauziah Md Yusof, Mohd Khairul Hazami Abd Rahim, Ahmad Safwan Samsudin, Nor Hafiez Mohamad Nor, Zuraida Ahmad
However there is still a poor combination of certain parameter to their response of mechanical properties such as the strength to load.
Among several factors affecting the compressive strength are parameters such as age of testing, binder type, binder amount, curing type and steel fiber volume fraction are the most influential [5].
The mechanical properties of the products are improved by utilizing the Taguchi optimization method.
Controllable factors such as melt temperature, packing pressure, injection time, and packing time are also considered as the optimal combination of factors in the manufacturing process [6].
Kamaruddin, Optimization of mechanical properties of recycled plastic products via optimal processing parameters using the Taguchi method, J.
Among several factors affecting the compressive strength are parameters such as age of testing, binder type, binder amount, curing type and steel fiber volume fraction are the most influential [5].
The mechanical properties of the products are improved by utilizing the Taguchi optimization method.
Controllable factors such as melt temperature, packing pressure, injection time, and packing time are also considered as the optimal combination of factors in the manufacturing process [6].
Kamaruddin, Optimization of mechanical properties of recycled plastic products via optimal processing parameters using the Taguchi method, J.
Online since: June 2012
Authors: Huan Mei Wang, Peng Fei Sun, Lin Chi, Yong Liang Gong, Ying Shi Tang
Therefore, a thermo-mechanical model was built in the MSC.MARC Software.
With the continuous improvement requirement of basic transmission parts in all kinds of mechanical equipment, it is very necessary to study the bearing mechanical properties of the gear pair in the process of continuous dynamic engagement.
But there are many factors can affact temperature, such as the way of lubricating, body structure, the working condition and so on.
Mechanical engineering & Automation, 2011, (3):14-16
Mechanical Transmission, 2006, 30(3): 29-31
With the continuous improvement requirement of basic transmission parts in all kinds of mechanical equipment, it is very necessary to study the bearing mechanical properties of the gear pair in the process of continuous dynamic engagement.
But there are many factors can affact temperature, such as the way of lubricating, body structure, the working condition and so on.
Mechanical engineering & Automation, 2011, (3):14-16
Mechanical Transmission, 2006, 30(3): 29-31
Online since: June 2024
Authors: Othman Hameed Zinkaah, Ahlam Jebur Kadhim
These factors include the rapid attainment of mechanical strength, dimensional stability, resilience in acidic environments, fire resistance, and excellent bonding properties with aggregates and reinforcements.
GPC systems derive their mechanical strength from various influencing factors.
Properties of FRP bars significantly affect the overall performance of structural elements, particularly over extended periods.
Mechanical behaviour of FRP-reinforced structures is heavily influenced by three crucial factors: density, elastic modulus, and tensile strength [68].
Eklund, “Factors affecting the suitability of fly ash as source material for geopolymers,” Fuel, vol. 89, no. 5, pp. 992–996, 2010
GPC systems derive their mechanical strength from various influencing factors.
Properties of FRP bars significantly affect the overall performance of structural elements, particularly over extended periods.
Mechanical behaviour of FRP-reinforced structures is heavily influenced by three crucial factors: density, elastic modulus, and tensile strength [68].
Eklund, “Factors affecting the suitability of fly ash as source material for geopolymers,” Fuel, vol. 89, no. 5, pp. 992–996, 2010
Online since: October 2011
Authors: Zhen Yu Qiu, An Hong Bao, Peng Wang
We propose the use of carbon fiber plate attached to the beam bottom, which makes finite element analysis of the mechanical properties of debonding concrete beams more reasonable.
Introduction Debonding is one of the most common factors affecting the capacity for RC beams strengthened with CFRP sheets [1] [2].
Currently, researchers pay little attention to finite element analyses on debonding and there is no doubt that experiment with solid models takes a primary role in this area because the mechanical standard judging whether debonding occurs or not has not been established.
In order to do finite element analyses, a mechanical standard (debonding theory) should be proposed.
Introduction Debonding is one of the most common factors affecting the capacity for RC beams strengthened with CFRP sheets [1] [2].
Currently, researchers pay little attention to finite element analyses on debonding and there is no doubt that experiment with solid models takes a primary role in this area because the mechanical standard judging whether debonding occurs or not has not been established.
In order to do finite element analyses, a mechanical standard (debonding theory) should be proposed.
Online since: March 2023
Authors: Fadzil Mat Yahaya, Khairunisa Muthusamy, Roziah Zailan, Mohd Faizal Md Jaafar, Khairul Anuar Shahid, Norhaiza Ghazali
The use of NDT methods is crucial in estimating the properties of concrete.
Researchers discovered that concrete made from fly ash improves the properties of concrete due to pozzolanic activity, resulting in the sealing of small cracks in the concrete being healed as well as better results in terms of self-healing properties [9,11,15].
Factors influencing ultrasonic pulse velocity in concrete, Ibracon Struc.
In Measuring, monitoring and modeling concrete properties, Springer. (2006) 273-284, Dordrecht
Li, Factors affecting crack repairing capacity if bacteria-based self-healing concrete, Constr.
Researchers discovered that concrete made from fly ash improves the properties of concrete due to pozzolanic activity, resulting in the sealing of small cracks in the concrete being healed as well as better results in terms of self-healing properties [9,11,15].
Factors influencing ultrasonic pulse velocity in concrete, Ibracon Struc.
In Measuring, monitoring and modeling concrete properties, Springer. (2006) 273-284, Dordrecht
Li, Factors affecting crack repairing capacity if bacteria-based self-healing concrete, Constr.
Online since: February 2016
Authors: Sergey Sergeevich Yakovlev, Michail Vasilievich Gryazev, Vadim Yurievich Travin
., associate professor of the Tula State University, Russia, Tula
mpf-tula@rambler.ru
Keywords: anisotropy of mechanical properties, strain, blank, stress, force, destruction, drawing with wall-thinning.
These are objects of higher requirements as to their mechanical properties and their quality characteristics.
The blank material is rigid-plastic with a cylindrical anisotropy of its mechanical properties.
(24) The above ratios allowed us to find how blank material mechanical properties anisotropy, technological parameters, blank and part geometrical dimensions, degree of strain, matrix taper angle, and the data for friction between the tool and blank surfaces – how all these factors affect the kinematics of material flow, the stressed and strained state of the blank, the force modes and the extreme limits of deformation.
The mechanical properties and fracture model of metals.
These are objects of higher requirements as to their mechanical properties and their quality characteristics.
The blank material is rigid-plastic with a cylindrical anisotropy of its mechanical properties.
(24) The above ratios allowed us to find how blank material mechanical properties anisotropy, technological parameters, blank and part geometrical dimensions, degree of strain, matrix taper angle, and the data for friction between the tool and blank surfaces – how all these factors affect the kinematics of material flow, the stressed and strained state of the blank, the force modes and the extreme limits of deformation.
The mechanical properties and fracture model of metals.
Friction Stir Welding of Thin Sheets of the AA2024-T3 Alloy with a Ceramic Tool: RSM and ANOVA Study
Online since: July 2022
Authors: Piotr Mysliwiec, Romana Ewa Śliwa
In this paper, the mechanical properties (tensile strength) of the samples of welded 2024-T3 aluminum alloy sheets were investigated to determine the best rotational speed and welding speeds.
The work determines the optimal parameters using one of the optimized methods to ensure proper welding performance based on tensile strength, study the obtained optimal parameters of mechanical properties and performance using the design of experiments (DOE) technique and development of models.
As an input factors tool rotation per minute, feedrate and number of grooves were selected.
Input factors included in experiment.
P-value for factors is less then 0.05 which means that model is significant.
The work determines the optimal parameters using one of the optimized methods to ensure proper welding performance based on tensile strength, study the obtained optimal parameters of mechanical properties and performance using the design of experiments (DOE) technique and development of models.
As an input factors tool rotation per minute, feedrate and number of grooves were selected.
Input factors included in experiment.
P-value for factors is less then 0.05 which means that model is significant.
Online since: July 2013
Authors: C. Ezilarasan, V.S. Senthil Kumar
DeFu Liu et al. [5] stated that the composite laminates such as CFRP, GFRP and fiber metal composite laminates were all applied in many fields like aerospace and aircraft structural components due to their superior properties.
Velayudham, and Krishnamurthy [9] stated that polymeric composites are widely used for structural components due to their inherent properties; however; the delamination is the most serious damage while creating holes.
They found that the feed rate and the drill diameter are the most significant factors affecting the thrust force, while the feed rate and spindle speed contribute the most for surface roughness.
Further, they concluded that the feed rate and drill diameter were the major factors influencing the thrust force in drilling GFRP composites.
Further, it was reported that among the several parameters that affect the delamination factor, thrust force and torque in drilling GFRP composites, the various process parameters such as cutting speed, feed rate, drill bit geometry, drill bit material and properties of work material are among the most important ones that are worth investigating.
Velayudham, and Krishnamurthy [9] stated that polymeric composites are widely used for structural components due to their inherent properties; however; the delamination is the most serious damage while creating holes.
They found that the feed rate and the drill diameter are the most significant factors affecting the thrust force, while the feed rate and spindle speed contribute the most for surface roughness.
Further, they concluded that the feed rate and drill diameter were the major factors influencing the thrust force in drilling GFRP composites.
Further, it was reported that among the several parameters that affect the delamination factor, thrust force and torque in drilling GFRP composites, the various process parameters such as cutting speed, feed rate, drill bit geometry, drill bit material and properties of work material are among the most important ones that are worth investigating.
Online since: May 2016
Authors: Yan Bin Shi, Xiao Geng, Yuan Yuan Lv, Shu Dong
Analyzing the result with ANOVA method it found that: Cutting thickness and cutting speed is the most significant factors for cutting performance, mixing rate only had an effect on the surface roughness.
Nozzle diameter and the interaction between feed rate and abrasive mass flow are critical factors affecting the depth of cut.
Effects of nozzle diameter, stand-off distance, jet pressure and rock properties on Supercritical Carbon Dioxide Jet are consistent with that of high pressure Water Jet.
The consistency and elasticity of materials are important factors to impact cutting performance.
Effect of liquid properties on the stability of an abrasive water jet.
Nozzle diameter and the interaction between feed rate and abrasive mass flow are critical factors affecting the depth of cut.
Effects of nozzle diameter, stand-off distance, jet pressure and rock properties on Supercritical Carbon Dioxide Jet are consistent with that of high pressure Water Jet.
The consistency and elasticity of materials are important factors to impact cutting performance.
Effect of liquid properties on the stability of an abrasive water jet.