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Online since: December 2015
Authors: Engku Zaharah Engku Zawawi, Dzaraini Kamarun, Nur Hikamah Seth, Siti Nurai'syah Umar Shaifudin
The effects of fiber loadings on the mechanical properties of the composites were investigated.
Optimum mechanical properties were observed at 55 wt % of fiber loading.
Notched impact controlled to a greater factor affecting the propagation of fracture initiated due to the stress concentration at the notch tip.
Another important factor that affects the modulus of the composites is the fibre orientation.
Extrusion and mechanical properties of highly filled cellulose fibre–polypropylene composites.
Optimum mechanical properties were observed at 55 wt % of fiber loading.
Notched impact controlled to a greater factor affecting the propagation of fracture initiated due to the stress concentration at the notch tip.
Another important factor that affects the modulus of the composites is the fibre orientation.
Extrusion and mechanical properties of highly filled cellulose fibre–polypropylene composites.
Online since: January 2014
Authors: Zhong Kai Han, Ming Liu, Yin Jun Gao
Mechanical properties ofstone masonry mechanical properties
Han Zhongkai1,a, Liu Ming2,b , Gao Yinjun3,c
1,2,3Water Resources Institute of ShandongProvice,China
ahzhk79@163.com,bsdskyliuming@163.com,cgyjsky1967@163.com
Key words: Experiment study; Stone masonry; Mechanical properties
Abstract: The research presented the mechanical properties under compressive loads of anatural stone masonry.
However, large safety factors are included.
Because of all these questions, the knowledge of the mechanical behavior of masonry stone compressive elements is still limited, as well as the availability of standards and codes of practice for the proper design and control of appropriate interventions [1].
Table 1Average values of stone properties ρ(kg/m3) fc(N/mm2) E (N/mm2) ft(N/mm2) stone 2.1 42 10.5 6.3 Fig. 1.Stone samples (left and center) and compression test (right). 2.1.
(2) The quality of the mortar and workmanship affects the masonry strength.
However, large safety factors are included.
Because of all these questions, the knowledge of the mechanical behavior of masonry stone compressive elements is still limited, as well as the availability of standards and codes of practice for the proper design and control of appropriate interventions [1].
Table 1Average values of stone properties ρ(kg/m3) fc(N/mm2) E (N/mm2) ft(N/mm2) stone 2.1 42 10.5 6.3 Fig. 1.Stone samples (left and center) and compression test (right). 2.1.
(2) The quality of the mortar and workmanship affects the masonry strength.
Online since: April 2009
Authors: Qiang Shen, Lian Meng Zhang, Fei Chen, Mei Juan Li, L.F. Yao
However, it is
difficult to homogeneously disperse fine h-BN particles into the matrix powder by using conventional
mixing methods, while the inhomogeneous dispersion of flake h-BN grains will play a role of fracture
origin to affect the mechanical properties [1~3].
Recently, it has been reported that nano-composites in which nano-sized particles dispersed within the matrix grains and/or at the grain boundary exhibit improved mechanical properties.
Microstructure and Properties.
Microstructure is also one of the most dominant factors, besides lower thermal conductivity of BN phase, which affects the thermal conductivity of BN-AlN composites.As seen from Fig.6, the thermal conductivity of BN-AlN composites prepared by nano-BN coated AlN powder is inferior to that of composites prepared by micrometer BN powder.
Nano-BN affects the BN-AlN composites microstructure, but also affects their properties.
Recently, it has been reported that nano-composites in which nano-sized particles dispersed within the matrix grains and/or at the grain boundary exhibit improved mechanical properties.
Microstructure and Properties.
Microstructure is also one of the most dominant factors, besides lower thermal conductivity of BN phase, which affects the thermal conductivity of BN-AlN composites.As seen from Fig.6, the thermal conductivity of BN-AlN composites prepared by nano-BN coated AlN powder is inferior to that of composites prepared by micrometer BN powder.
Nano-BN affects the BN-AlN composites microstructure, but also affects their properties.
Online since: June 2017
Authors: Bao Liang Shi, Wen Sheng Li, Jian Ping Zhao, Kai Xu, Yang Liu, Ai Ren, Yan Li, Cheng He
High temperature tensile properties of T23 are closely related to the alloy aging degree.
Therefore, it is of great practical significance to investigate the change of the microstructure and mechanical properties of T23 steel under different service time in real service environment.
In addition, the high temperature mechanical properties at 580℃ and 600℃ of T23 steel were studied by using machine of AG-IC 600, and the number of the test specimen under the same conditions were three.
The effect of pure matrix on is related to many factors such as dislocation density, sub-grain, grain size and so on.
Factors affecting the yield strength of T23 steel have the same effect on the tensile strength, causing the change regularity of tensile strength consistent with yield strength during the service process.
Therefore, it is of great practical significance to investigate the change of the microstructure and mechanical properties of T23 steel under different service time in real service environment.
In addition, the high temperature mechanical properties at 580℃ and 600℃ of T23 steel were studied by using machine of AG-IC 600, and the number of the test specimen under the same conditions were three.
The effect of pure matrix on is related to many factors such as dislocation density, sub-grain, grain size and so on.
Factors affecting the yield strength of T23 steel have the same effect on the tensile strength, causing the change regularity of tensile strength consistent with yield strength during the service process.
Online since: July 2018
Authors: Chatchai Putson, Thitima Rujiralai, Wilairat Cheewasedtham, Massaya Longsaman
As consequence, the interfacial surface area significantly affects the electrical and mechanical properties of those NR composites.
Improvement of the dielectric constant is key factors for increasing the performance of dielectric elastomers [3, 4].
While mechanical properties of composites need to keep constant [2, 3].
Mechanical properties.
The added fillers at low content in NR matrix have slight effect on mechanical properties.
Improvement of the dielectric constant is key factors for increasing the performance of dielectric elastomers [3, 4].
While mechanical properties of composites need to keep constant [2, 3].
Mechanical properties.
The added fillers at low content in NR matrix have slight effect on mechanical properties.
Online since: April 2004
Authors: Shouichi Ochiai, Jae Do Kwon, J.J. Ahn
Mechanical and Fatigue Properties of the SiCp/Al Composites
J.J.Ahn
1, S.Ochiai1 and J.D.Kwon2
1International Innovation Center, Kyoto University, Sakyo, Kyoto 606-8501, Japan
2School of Mechanical Engineering, YeungNam University, Gyeongsan,
Gyeongpuk, 712-749, Korea
Keywords: SiCp/Al, tensile properties, fatigue crack propagation properties, fracture surface
observation.
It was noted that fatigue properties of the SiCp/Al was more affected by local volume fraction in front of crack tip than bulk volume fraction.
Mechanical properties including fatigue of such Al based MMCs have published by many researchers [1-3].
However, most of researches are focused on mechanical properties of the MMCs with high volume fraction more than 10%.
In order to verify the mechanical properties of such SiCp/Al composites with 5%, 7.5% and 10%, tensile tests and hardness measurement were performed.
It was noted that fatigue properties of the SiCp/Al was more affected by local volume fraction in front of crack tip than bulk volume fraction.
Mechanical properties including fatigue of such Al based MMCs have published by many researchers [1-3].
However, most of researches are focused on mechanical properties of the MMCs with high volume fraction more than 10%.
In order to verify the mechanical properties of such SiCp/Al composites with 5%, 7.5% and 10%, tensile tests and hardness measurement were performed.
Online since: December 2018
Authors: Andrey Belyakov, Rustam Kaibyshev, Marina Tikhonova, Vladimir Torganchuk, Pavel Dolzhenko
The mechanical properties of Fe-28%Mn-1.5%Al and Fe-0.6%C-18%Mn-1.5%Al-0.07%Nb (all in wt.%) steels subjected to hot plate rolling at a temperature of 1423 K with a total reduction of 60% were studied.
The steels exhibited quite different mechanical properties in spite of almost the same original microstructures and similar stacking fault energies.
Therefore, an increase in the carbon content should be adjusted by a decrease in the manganese or other SFE affecting element.
Mechanical properties of the high-Mn steels.
Kaibyshev, High-Mn twinning-induced plasticity steels: Microstructure and mechanical properties, Rev.
The steels exhibited quite different mechanical properties in spite of almost the same original microstructures and similar stacking fault energies.
Therefore, an increase in the carbon content should be adjusted by a decrease in the manganese or other SFE affecting element.
Mechanical properties of the high-Mn steels.
Kaibyshev, High-Mn twinning-induced plasticity steels: Microstructure and mechanical properties, Rev.
Online since: November 2012
Authors: Zhi Feng Liu, Guang Fu Liu, Shao Bo Pan, Zhong Wei Wu
Multivariate quadratic simulation equations are established and the order of significantly affecting the regeneration is determined.
Theoretical analysis of physical decomposition and regeneration Through mechanical forces affecting phenol resin for a long crushing time, the size reduced, specific surface area increased.
It is a mechanical result of force, friction, heat, and other factors.
According to conditions and the existing experience, each factor sets three level factors, determine the orthogonal experimental programmer.
Molecular chains are broken, and the material recovers thermoplastic molding properties.
Theoretical analysis of physical decomposition and regeneration Through mechanical forces affecting phenol resin for a long crushing time, the size reduced, specific surface area increased.
It is a mechanical result of force, friction, heat, and other factors.
According to conditions and the existing experience, each factor sets three level factors, determine the orthogonal experimental programmer.
Molecular chains are broken, and the material recovers thermoplastic molding properties.
Online since: August 2013
Authors: Tao Xue, Jun Fa Xu
The environmental factors have complex effects on the bearing properties of group pile foundation.
Finally, the impacts of different environment factors on the bearing properties of group pile foundation had been got.
But studies of assessing the effect of complex environmental factors on the bearing properties of group pile foundation are relatively rare.
In order to build relationship between strains and water level, it is needed to choose the strains that during the simple construction conditions (for example bridge has been finished) and also less affected by other factors (such as the cloudy day without wind).
So we can think the impact of these factors on the mechanical characteristics of group pile foundation degree is bigger.
Finally, the impacts of different environment factors on the bearing properties of group pile foundation had been got.
But studies of assessing the effect of complex environmental factors on the bearing properties of group pile foundation are relatively rare.
In order to build relationship between strains and water level, it is needed to choose the strains that during the simple construction conditions (for example bridge has been finished) and also less affected by other factors (such as the cloudy day without wind).
So we can think the impact of these factors on the mechanical characteristics of group pile foundation degree is bigger.
Online since: October 2014
Authors: Z.A. Rasid
The Structural Application of Bio-composites: A Comparison
of Mechanical Properties between Bio-composites
and Glass Reinforced Composites
Z.
There are 3 main factors that affect the properties of bio-composite: individual properties of fibre and matrix, compatibility between fibre and matrix and manufacturing process of the bio-composite.
Numerous researches have been conducted to improve the mechanical properties of the green composites.
Comparison is made while relating the properties of bio-composite to the factors that may have affected it.
Results and Discussion The results on mechanical properties of green composites provided by the literature are discussed and compared to the properties of glass mat thermoplastic composite (GMT).
There are 3 main factors that affect the properties of bio-composite: individual properties of fibre and matrix, compatibility between fibre and matrix and manufacturing process of the bio-composite.
Numerous researches have been conducted to improve the mechanical properties of the green composites.
Comparison is made while relating the properties of bio-composite to the factors that may have affected it.
Results and Discussion The results on mechanical properties of green composites provided by the literature are discussed and compared to the properties of glass mat thermoplastic composite (GMT).