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Online since: October 2019
Authors: Wantanee Buggakupta, Pornapa Sujaridworakun, Thanaporn Wilairat, Nattawut Saechin
That is because it has direct impacts on the physical and mechanical properties.
Porosity and compressibility affect properties like brake vibration.
These properties are significantly affected by the performance of the pad.
Both properties are affected not only by the material formulation but also by the manufacturing process [3].
Molding pressure (X2) is considered to be the most influent factor affecting porosity.
Online since: July 2013
Authors: Fu Qin Yang, Chuan Sheng Wang, Guan Ying Song
Based on the summary and analysis of experiments, the authors discussed the influence of fill factor on performance of internal mixers and physical and mechanical properties of the rubber compound.
As an important performance parameter of the mixer, it affects not only the production capacity of the mixer, maximum power consumption, unit energy consumption, mixing time and discharge temperature, but also the mixing quality (physical and mechanical properties and dispersion) [1].
In this paper, with the conditions of the same ram piston pressure, cooling water temperature and rotor speed, the experiments were carried on to study the influence of fill factor on mixing performance of mixer and physical and mechanical properties of rubber compound in four types of X(S)M-1.7L mixer: intermeshing rotor mixer, variable intermeshing clearance mixer, shearing rotor mixer and variable shearing clearance mixer.
It depends on the changing rate of the two factors.
But the optimal value can not be theoretically calculated, because the factors which affect the fill factor is too many and too complex, such as the mixer type, the rotor speed, cooling water temperature, ram piston pressure, recipe, feeding ways and operation methods and most of these factors are difficult to quantify.
Online since: February 2018
Authors: Muralimohan Cheepu, S. Muthukumaran, Devuri Venkateswarulu, Devireddy Krishnaja
The friction stir welding tool is a crucial part of this welding operation accordingly, mechanical properties and microstructural characteristics of the FSW welded materials can be affected by various factors such as welding conditions, material composition, microstructures of the before and after welding, and various geometric parameters of the friction stir welded tool and the substrates [27, 28].
Mechanical Properties.
The joints are heat treated at different conditions to enhance the mechanical properties of the joints.
It has been reported that heat input generation in the welds by the tool shoulder is an important factor in FSW process, and also, the properties of the joints are strongly influenced by this factor.
Lei, Mechanical properties of underwater friction stir welded 2219 aluminum alloy, Trans.
Online since: January 2014
Authors: Bo Yu, Wei Ming Wang, Yun Feng
There are direct relationships between micro-molecular structure and mechanical properties.
The main influence factors for fiber mechanical behavior are morphological structure, crystallinity and molecular orientation.
Effect of treatment temperature on the mechanical properties of PorelTM fiber.
The effect of treatment temperature on PorelTM fiber’s mechanical properties are showed in Fig.2.
Effect of treatment time on the mechanical properties of PorelTM fiber.
Online since: August 2011
Authors: Gyu Yong Kim, Young Sun Kim, Gyu Yeon Park, Tae Gyu Lee
This research effort aims to evaluate the mechanical properties of concrete with two aggregate type, light weight and normal weight at elevated temperatures.
According to previous research [1], the factors that influence the strength of concrete at high temperature divided in to two groups: material properties and environmental factors.
In addition, heat resistance of concrete affects by environmental factors such as heating rate, duration of exposure to maximum temperature, cooling rate, loading conditions and moisture regime.
Since aggregates make up the bulk of concrete, their properties largely determine concrete properties.
Overall results conclude that, aggregate type and loading conditions significantly affects the mechanical properties of concrete.
Online since: August 2013
Authors: Lian Chong Li, Shao Hua Li
Under the combined effects of various external factors, such as temperature, seepage, alternate wetting and drying and so on, the mechanical properties of rock mass are susceptible to be deteriorated, and its strength characteristics are significantly degraded with time.
Introduction Since there are such a variety of inducements as temperature, alternating wet and dry, human activities and other external factors to trigger the damage, the rock slope which contains weak layers and structure planes, its intrinsic physical and mechanical properties of materials are vulnerable to deteriorate, especially its strength characteristics are significantly degraded with time, mesoscopic damage accumulate inside the rock, so its stability becomes a condition that varies with time.
Properties of structures planes generally vary from location to location and may change with time.
Additionally, compared with the bedrock, the properties of the structure planes is more important.
If the rock slope has been in adverse geotechnical environment for a long time, its mechanical properties deteriorate and the failure time of the slope is significantly shortened compared with the same slope in advantage geotechnical environment.
Online since: May 2010
Authors: Marie Helene Mathon, Alain Lodini, Vincent Klosek, Herve Bonnefoy, Abdeljalil Nady
Several factors may contribute to the formations of residual stress and deformation.
However, the formulation considered the contributions of the transient temperature field to the stress analysis through thermal expansion, as well as temperature- dependent thermo-physical and mechanical properties.
The thermal analysis was performed using temperature dependent thermal material properties.
Table. 1 Properties of the steel substrate and stellite 6 material.
Fig. 5, Temperature-dependent mechanical-physical properties.
Online since: September 2015
Authors: P.V. Venkitakrishnan, K. Thomas Tharian, Aby Isaac, N. Dileep Kumar
Effect of Brazing and Heat treatment cycle on the Mechanical properties of base materials N.
Thus the present work focuses on the effect of the brazing/thermal cycle on mechanical properties and microstructure of the base materials in post braze condition.
This helped in understanding the effect of brazing condition on the changes in mechanical properties of base materials.
Mechanical properties of the two materials in heat treated condition before brazing cycle Material UTS, MPa YS, MPa %El % RA ASTM grain size No.
Since all other effects remains same, grain size is only the major factor affecting the yield strength (YS) of this steel.
Online since: May 2007
Authors: Jin Ling Zhang, She Bin Wang, Ming Zhao Li, Xu Guang Liu, Bing She Xu
Analysis and measurement showed that the quantity of inclusions was decreased and the mechanical properties were improved.
Inclusions not only affect the properties of magnesium alloy, but also cause the loss of molten magnesium.
By analyzing and testing the change of inclusion in type, quantity, size and mechanical properties, the factors affecting mechanical properties were discussed, which would set the foundation for further enhancing the mechanical properties of magnesium alloy. 2 Experimental Mg, Al, Zn, Mn and a little amount of La were used as raw materials in experiment.
The average crystal grain area of AZ91, 3575µm2 [7] was bigger than that of the sample, 875µm2, which was decreased by 76%. 3.4 Mechanical properties The tensile properties of the sample were shown in Table 2.
It can be expected that the better mechanical properties of sample would have been attained, if rear earth was added in the AZ91 and the raw materials of high purity were used in the experiment. 5.
Online since: August 2013
Authors: Shu Hong Wang, Mu Dan Guo, Fu Sheng Zhu, Xi Jiang Mu
The factors that affect the mechanical behavior of structural planes are so complicated that it is quite essential to take an efficient method to quantificationally analyze these factors.
One thing needs to concerned is the complexity of factors affecting the structural planes mechanical parameters.
In order to combine the geometry and mechanical characteristics, there should be a valid method to comprehensively assess the effect of these factors.
Establishment of the Hierarchical Model Based on the existing results[7-15] from literatures about mechanical characteristics affected by various factors, considering the fundamentals of hierarchical model establishment and both the two aspects of structural planes features and external environment, the factors are classified and also the hierarchical model is established in Fig. 1.
(in Chinese) [7] Shigu Du: Engineering properties of rock discontinuities (Earthquake Press Publications, Beijing 1999.
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