Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: August 2015
Authors: T. Sornakumar, M. Kannan, Kalaichelvan Kani
The curing and winding are regarded as the necessary procedures during molding, and they are the key factors affecting the final performance of the composite shells [3].
The respective mechanical tests are repeated for three times and the mean values of the properties are evaluated.
The tensile test was conducted in a Universal testing machine as per ASTM: D638 standard test method for tensile properties.
Summary Glass Fiber Reinforced Plastic composite components were manufactured by filament winding process and their mechanical properties were determined as per ASTM standards.
The development of filament wound GFRP composite components with good mechanical properties revealed that these components can be used with advantage for many applications.
The respective mechanical tests are repeated for three times and the mean values of the properties are evaluated.
The tensile test was conducted in a Universal testing machine as per ASTM: D638 standard test method for tensile properties.
Summary Glass Fiber Reinforced Plastic composite components were manufactured by filament winding process and their mechanical properties were determined as per ASTM standards.
The development of filament wound GFRP composite components with good mechanical properties revealed that these components can be used with advantage for many applications.
Online since: September 2013
Authors: Zhen Yu Wu, Xu Dong Hu, Ke Qiao Hu, Zhen Pan
Yarn tension during weft insertion is one of important factors which affect fabric properties.
Moreover, weft tension has a direct influence on fabric properties such as air permeability, abrasion resistance, tensile strength, etc [2].
Although numerous factors acting on weft tension have been discussed, still many problems are waiting to be solved.
[2] Adanur, S., and Jing, Qi., Property Analysis of Denim Fabrics Made on Air-jet Weaving Machine Part II: Effects of Tension on Fabric Properties, Textile Research Journal.
A., Influence of Controlled Weft Yarn Tension of a Single Nozzle Air-Jet Loom on the Physical Properties of the Fabric, Textile Research Journal.
Moreover, weft tension has a direct influence on fabric properties such as air permeability, abrasion resistance, tensile strength, etc [2].
Although numerous factors acting on weft tension have been discussed, still many problems are waiting to be solved.
[2] Adanur, S., and Jing, Qi., Property Analysis of Denim Fabrics Made on Air-jet Weaving Machine Part II: Effects of Tension on Fabric Properties, Textile Research Journal.
A., Influence of Controlled Weft Yarn Tension of a Single Nozzle Air-Jet Loom on the Physical Properties of the Fabric, Textile Research Journal.
Online since: August 2011
Authors: Xing Hua Zhang, Zhi Su Zhao
Introduction
Punching is widely used in the mechanical industry as a processing method, material processing through a large elastic-plastic deformation, material properties of tools and process design is the largest factor to consider [1-4].
According to the most common normal distribution, the probability distribution of mechanical properties of the influence of punching force are analyzed, the theoretical support is given.
Conservative case, an order of magnitude smaller than, it is .In this we have quantitatively been considered when punch out fuzzy reliability, mechanical properties of materials and geometric characteristics of the random effects of punching force.
General classical method consider the uneven punching gap and the knife-edge punching force of the impact of passive, but the punching gap of the influence of punching force is small[6], knife-edge passivation not more than the mechanical properties and thickness change.
[4] Datsco J: Material Properties and Manufacturing Process.New York (1996) [5] LI Shouben: Stamping processing technology.
According to the most common normal distribution, the probability distribution of mechanical properties of the influence of punching force are analyzed, the theoretical support is given.
Conservative case, an order of magnitude smaller than, it is .In this we have quantitatively been considered when punch out fuzzy reliability, mechanical properties of materials and geometric characteristics of the random effects of punching force.
General classical method consider the uneven punching gap and the knife-edge punching force of the impact of passive, but the punching gap of the influence of punching force is small[6], knife-edge passivation not more than the mechanical properties and thickness change.
[4] Datsco J: Material Properties and Manufacturing Process.New York (1996) [5] LI Shouben: Stamping processing technology.
Online since: March 2008
Authors: Shu Tian Fan, Gui Cheng Wang, Hong Jie Pei, Yun Ming Zhu, Qin Feng Li, Hai Jun Qu
The
influence factors of the feed-direction burrs are pointed out.
In the paper, the types, forming mechanism and main influencing factors of the burr are studied by experiment, and related theories are analyzed.
The main factors affecting burr formation in drilling include the workpiece material, the shape of workpiece end, cutting parameters and cutting geometry of the drill, etc.
The mechanical property of the workpiece material and drilling condition for experiment are shown in Table 1 and Table 2, respectively.
In drilling process, the supporting strength of the material on the exit of the drill is one of the important factors to affect burr size.
In the paper, the types, forming mechanism and main influencing factors of the burr are studied by experiment, and related theories are analyzed.
The main factors affecting burr formation in drilling include the workpiece material, the shape of workpiece end, cutting parameters and cutting geometry of the drill, etc.
The mechanical property of the workpiece material and drilling condition for experiment are shown in Table 1 and Table 2, respectively.
In drilling process, the supporting strength of the material on the exit of the drill is one of the important factors to affect burr size.
Online since: January 2012
Authors: P. Chakravarthy, K. Jayakumar, Jose Mathew, M.A. Joseph, R. Suresh Kumar
Particle size and the amount of reinforcement have pronounced effect on the mechanical properties of composites.
End Milling of the composites There are many factors affecting the machining quality characteristics in terms of surface finish and cutting forces.
Depth of cut (C), size of SiC particle (D), and interaction factors (AD) and (BC) are the most significant factors followed by feed and cutting speed for the cutting force.
Size of SiCp (D) and cutting speed (A) are the most influencing factors for surface finish and depth of cut (C) and size of SiCp (D) are influencing factors for cutting force.
Kok, Production and mechanical properties of Al2O3 particle-reinforced 2024 aluminum alloy composites, J.
End Milling of the composites There are many factors affecting the machining quality characteristics in terms of surface finish and cutting forces.
Depth of cut (C), size of SiC particle (D), and interaction factors (AD) and (BC) are the most significant factors followed by feed and cutting speed for the cutting force.
Size of SiCp (D) and cutting speed (A) are the most influencing factors for surface finish and depth of cut (C) and size of SiCp (D) are influencing factors for cutting force.
Kok, Production and mechanical properties of Al2O3 particle-reinforced 2024 aluminum alloy composites, J.
Online since: June 2021
Authors: Jia He Wang
(a) Compress Strength (b) Elastic Modulus
Fig. 1 Effect of accelerator and admixture on mechanical properties of shotcrete
The solid line in Figure 1 shows the test results of mechanical properties with accelerator or admixture.
However, the effect of admixtures on the long-term mechanical properties of shotcrete is small.
The impermeability is an important factor that affects the service performance of the tunnel structure.
By analyzing the test results, the following conclusions can be drawn: (1) In terms of mechanical properties, the use of functional admixtures can significantly improve the mechanical properties of shotcrete at early age, while high-performance liquid alkali-free accelerator can achieve little impact on the development of mechanical properties of concrete in the later stage.
Experimental analysis on mechanical properties of wet shotcrete and application of high stress roadway support.
However, the effect of admixtures on the long-term mechanical properties of shotcrete is small.
The impermeability is an important factor that affects the service performance of the tunnel structure.
By analyzing the test results, the following conclusions can be drawn: (1) In terms of mechanical properties, the use of functional admixtures can significantly improve the mechanical properties of shotcrete at early age, while high-performance liquid alkali-free accelerator can achieve little impact on the development of mechanical properties of concrete in the later stage.
Experimental analysis on mechanical properties of wet shotcrete and application of high stress roadway support.
Online since: March 2008
Authors: Meng Ju Lin, Jen Cheh Lee, Chung Li Hwan, Jung Nan Liao
Therefore the performance is determined by the welding properties.
The welding time, temperature and induced pressure are important factors affecting welding property.
In package, soldering is one of the significant factors for package performance.
Temperature and pressure are significant parameters affecting performance.
Temperature identifies the properties of solder balls melting and reflowing.
The welding time, temperature and induced pressure are important factors affecting welding property.
In package, soldering is one of the significant factors for package performance.
Temperature and pressure are significant parameters affecting performance.
Temperature identifies the properties of solder balls melting and reflowing.
Online since: December 2018
Authors: Marc Leparoux, Je Hong Park, Akira Kawasaki, Jean-Francois Silvain, Han Sang Kwon, Kwon Hoo Kim
Introduction
Aluminium (Al) and its alloys are widely used conventional engineering materials due to their lightness, relatively good mechanical, electrical, and thermal properties, and low cost.
Some properties of the pure Al, the Al-CNT-nSiC and the Al-CNT-nD composite materials.
Thus, it is possible to fabricate multifunctional materials with properties that have been customised by the application of the FGM concept.
Agarwal, An analysis of the factors affecting strengthening in carbon nanotube reinforced aluminum composites, Carbon (2011) 533-544
Lanka, Effect of carbon nanotube (CNT) content on the mechanical properties of CNT-reinforced aluminum composites, Compo.
Some properties of the pure Al, the Al-CNT-nSiC and the Al-CNT-nD composite materials.
Thus, it is possible to fabricate multifunctional materials with properties that have been customised by the application of the FGM concept.
Agarwal, An analysis of the factors affecting strengthening in carbon nanotube reinforced aluminum composites, Carbon (2011) 533-544
Lanka, Effect of carbon nanotube (CNT) content on the mechanical properties of CNT-reinforced aluminum composites, Compo.
Online since: July 2016
Authors: Michal Vik, Brigita Kolčavová Sirková, Lucie Duchoňová, Marcela Pechová, Martina Viková
In a Textile faculty of TU Liberec was developed microscopic method to research the affecting factors textile thin bands retroreflectivity [1].
Fig.3 Samples under diffuse illumination Fig.4 Samples under direct illumination In a Textile faculty of TU Liberec was therefore developed microscopic method to research the affecting factors of textile thin bands retroreflectivity.
Materials and methods Colorimetric values and spectral properties of winded samples were measured by portable reflective spectrophotometer HunterLab with 45°:0° viewing geometry.
Fig. 11 Color shift on a*b* plane of CIELAB caused by change from 45°:0° to 0°:0° geometry Fig.12 Lightness difference between 45°:0° and 0°:0° viewing geometry Summary Retro-reflective sheeting generally has requirements not only for inverse reflection properties, but also for chrominance properties, adhesion properties, weatherability, salt spray corrosion resistance, solvent resistance, shock resistance, bending resistance, high and low temperature resistance, shrinkage, tensile properties and adhesion between ink and reflective films.
Potential application of this method is possible to see in noncontact method of measurement dimensional changes of textile substrates under mechanical stress.
Fig.3 Samples under diffuse illumination Fig.4 Samples under direct illumination In a Textile faculty of TU Liberec was therefore developed microscopic method to research the affecting factors of textile thin bands retroreflectivity.
Materials and methods Colorimetric values and spectral properties of winded samples were measured by portable reflective spectrophotometer HunterLab with 45°:0° viewing geometry.
Fig. 11 Color shift on a*b* plane of CIELAB caused by change from 45°:0° to 0°:0° geometry Fig.12 Lightness difference between 45°:0° and 0°:0° viewing geometry Summary Retro-reflective sheeting generally has requirements not only for inverse reflection properties, but also for chrominance properties, adhesion properties, weatherability, salt spray corrosion resistance, solvent resistance, shock resistance, bending resistance, high and low temperature resistance, shrinkage, tensile properties and adhesion between ink and reflective films.
Potential application of this method is possible to see in noncontact method of measurement dimensional changes of textile substrates under mechanical stress.
Online since: March 2021
Authors: Jose Rajan, Kwok Feng Chong, Izan Izwan Misnon, Kee Shyuan Loh, Norhayati Nordin
This study investigated the properties of the polymeric solution and the effects of solvent ratio and concentration on morphology, hydrophobicity and mechanical properties of PBI nanofiber membranes.
Another finding is that the nanofiber membranes with 7.5 w/v% of PBI showed excellent mechanical properties with the maximum stress value of 4.20 ± 0.29 MPa.
Controlling these factors will result in optimal polymer fibres with the appropriate diameter and without beads [9].
Mechanical properties of PBI nanofiber membranes.
Fig. 4 illustrates the universal stress-strain curve of the PBI nanofiber membranes for the investigation of mechanical properties.
Another finding is that the nanofiber membranes with 7.5 w/v% of PBI showed excellent mechanical properties with the maximum stress value of 4.20 ± 0.29 MPa.
Controlling these factors will result in optimal polymer fibres with the appropriate diameter and without beads [9].
Mechanical properties of PBI nanofiber membranes.
Fig. 4 illustrates the universal stress-strain curve of the PBI nanofiber membranes for the investigation of mechanical properties.