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Online since: November 2013
Authors: Yu Cheng Liu, Jie Peng, Bao Gang Wang, Jian Zhuang, Xing Wang Chai, Sheng Sheng Ma, Yun Hai Ma
This paper combine the traditional methods and the granulation technology to obtain the cell membrane and the nucleus with similar core-shell structure of the granulated material, to study the internal microstructure of the granulated material and the characteristic parameters of the friction material as the basic unit of the friction material, wear performance and density, hardness, impact and other physical properties of the mechanism to regulate and control the friction material as a whole tribological properties and mechanical properties.
Experimental factors Proportion Particle size 1:1 1:2 2:1 1-3mm 1 2 3 3-5mm 4 5 6 5-8mm 7 8 9 8-10mm 10 11 12 1-10mm 13 14 15 The physical properties of the granulation friction material Impact strength Predetermined measurement method according to GB5765-86, XJ-40A plastic impact testing machine to test the friction material impact strength, Charpy impact test using cylindrical branched.
In addition to the aggregates bonding mechanism main factors affecting the strength of the briquettes is the void ratio and particle size of the agglomerates[11].
Part of the granulation friction material friction and wear properties Test equipment and test methods Jilin University Institute of Mechanical and Electrical Equipment Manufacturing JF150D-II fixed-speed friction testing machine, friction and wear testing.
After the test is restored friction material friction and wear properties of the end of the experiment.
Experimental factors Proportion Particle size 1:1 1:2 2:1 1-3mm 1 2 3 3-5mm 4 5 6 5-8mm 7 8 9 8-10mm 10 11 12 1-10mm 13 14 15 The physical properties of the granulation friction material Impact strength Predetermined measurement method according to GB5765-86, XJ-40A plastic impact testing machine to test the friction material impact strength, Charpy impact test using cylindrical branched.
In addition to the aggregates bonding mechanism main factors affecting the strength of the briquettes is the void ratio and particle size of the agglomerates[11].
Part of the granulation friction material friction and wear properties Test equipment and test methods Jilin University Institute of Mechanical and Electrical Equipment Manufacturing JF150D-II fixed-speed friction testing machine, friction and wear testing.
After the test is restored friction material friction and wear properties of the end of the experiment.
Online since: August 2021
Authors: Vera V. Berezovskaya, Eugeny A. Merkushkin, Ksenia A. Mamchits
Standard mechanical tensile and bending properties were determined, the latter for assessing SCC.
Mechanical and Corrosion Properties The properties of all investigated austenitic stainless steels are given in table.
As you can see the Cr-Ni-Mn-N-steels, in addition to austenite, contain a small amount of d-ferrite in the structure, which can adversely affect their magnetic properties.
Ren, Mechanical properties of 32Mn-7Cr-0.6Mo-0.3N austenitic steel for cryogenic applications, J.
Robinson, Evaluation of corrosion and mechanical properties of a range of experimental Cr-Mn stainless steels, Mater.
Mechanical and Corrosion Properties The properties of all investigated austenitic stainless steels are given in table.
As you can see the Cr-Ni-Mn-N-steels, in addition to austenite, contain a small amount of d-ferrite in the structure, which can adversely affect their magnetic properties.
Ren, Mechanical properties of 32Mn-7Cr-0.6Mo-0.3N austenitic steel for cryogenic applications, J.
Robinson, Evaluation of corrosion and mechanical properties of a range of experimental Cr-Mn stainless steels, Mater.
Online since: May 2012
Authors: Yu Hong Ling, Hong Hua Ling
Based on these two important properties, different types of SMA energy dissipation devices have been developed.
Ling et al. [5] [6] firstly conducted tests on mechanical properties of NiTi wires, then hysteresis curve of the self-centring damper was simulated by programming based on Ma's work.
Mechanical model of re-centring SMA damper SMA Damper Behavior.
Parameters of Energy Dissipating Group The working principle of energy dissipating group is same as that of common metal damper, so the factors affecting its damping effect including[8]: (1) the ratio B/D of initial stiffness of energy components and stiffness of brace; (2) the ratio SR of initial stiffness of component consisted of brace and energy dissipating group and stiffness of corresponding structural layer; (3) the ratio β of yield displacement of energy components and yield displacement of corresponding structural layer; (4) the ratio α of the second stiffness and initial stiffness of energy components.
Fig.9 shows how parameter Q affects damping effect of re-centring SMA damper.
Ling et al. [5] [6] firstly conducted tests on mechanical properties of NiTi wires, then hysteresis curve of the self-centring damper was simulated by programming based on Ma's work.
Mechanical model of re-centring SMA damper SMA Damper Behavior.
Parameters of Energy Dissipating Group The working principle of energy dissipating group is same as that of common metal damper, so the factors affecting its damping effect including[8]: (1) the ratio B/D of initial stiffness of energy components and stiffness of brace; (2) the ratio SR of initial stiffness of component consisted of brace and energy dissipating group and stiffness of corresponding structural layer; (3) the ratio β of yield displacement of energy components and yield displacement of corresponding structural layer; (4) the ratio α of the second stiffness and initial stiffness of energy components.
Fig.9 shows how parameter Q affects damping effect of re-centring SMA damper.
Online since: May 2012
Authors: Vadim V. Silberschmidt, Liviu Marşavina, Henry Hanson, Dan Andrei Serban
Short-term viscoelastic properties (loss and storage moduli) of a studied semi-crystalline thermoplastic polymer were obtained using Dynamic Mechanical Analysis, while its long-term viscoelastic properties (compliances) were determined using creep tests.
1.
Previous tests performed on the studied material determined strain-rate- and temperature-dependency of its mechanical properties [2] but no quantitative description of the viscoelastic properties was obtained.
Furthermore, the amplitude affects dynamic properties, as the elastic potential decreases with strain.
Conclusions This paper presented a series of tests that were performed in order to obtain a quantitative description of variation of mechanical properties of the studied poly-amide-based semi-crystalline thermoplastic polymer [9] with two major factors: time and temperature.
[11] ASTM D 4440 – 01 Standard Test Method for Plastics: Dynamic Mechanical Properties Melt Rheology1200.
Previous tests performed on the studied material determined strain-rate- and temperature-dependency of its mechanical properties [2] but no quantitative description of the viscoelastic properties was obtained.
Furthermore, the amplitude affects dynamic properties, as the elastic potential decreases with strain.
Conclusions This paper presented a series of tests that were performed in order to obtain a quantitative description of variation of mechanical properties of the studied poly-amide-based semi-crystalline thermoplastic polymer [9] with two major factors: time and temperature.
[11] ASTM D 4440 – 01 Standard Test Method for Plastics: Dynamic Mechanical Properties Melt Rheology1200.
Online since: June 2010
Authors: Jian Ping Lin, Shui Sheng Chen, Xin Yang Tao
For instance, Chan et al [2] analyzed TWB's formability and weld-line's
mechanical properties with different thickness ratios by experiments.
Parent Material Parameters' Affects on TWB's Formability Factors affecting TWB's formability was divided into three categories: forming process factors including blank holder force, drawing velocity and so on; sheets' thickness ratio and material parameters(k, r, n); weld-line conditions(performance, location and angle of weld-line).
b) n (strain hardening index) is a major parameter affecting material equivalent stress too.
Dynaform, the FE software is used to analyze sensitivity factors of parent sheets in this paper.
Ranges of each factors can reflect their influence degree to indexes.
Parent Material Parameters' Affects on TWB's Formability Factors affecting TWB's formability was divided into three categories: forming process factors including blank holder force, drawing velocity and so on; sheets' thickness ratio and material parameters(k, r, n); weld-line conditions(performance, location and angle of weld-line).
b) n (strain hardening index) is a major parameter affecting material equivalent stress too.
Dynaform, the FE software is used to analyze sensitivity factors of parent sheets in this paper.
Ranges of each factors can reflect their influence degree to indexes.
Online since: February 2020
Authors: S.M. Shariff, G. Padmanabham, Snehanshu Pal, D. Narsimha Chary, Anindya Basu
Influence of Joint Configuration on Mechanical Properties of Laser Weld-Brazed Aluminum to Steel Joint
D.
Main design factors for developing these structures require good crashworthiness and improved fuel efficiency.
Joint characteristics were studied comparing their microstructure and mechanical properties along with the effect of varying laser power.
Tensile Properties.
Pyzalla, Influence of filler composition on the microstructure and mechanical properties of steel–aluminum joints produced by metal arc joining, Adv.
Main design factors for developing these structures require good crashworthiness and improved fuel efficiency.
Joint characteristics were studied comparing their microstructure and mechanical properties along with the effect of varying laser power.
Tensile Properties.
Pyzalla, Influence of filler composition on the microstructure and mechanical properties of steel–aluminum joints produced by metal arc joining, Adv.
Online since: March 2017
Authors: Shi Da Zheng, Shan Guo Han, De Tao Cai, Zi Yi Luo, Yao Yong Yi
At the same time, high heat input, is creased by high base metal current and is harmful for weld deformation and mechanical properties.
Static tensile properties.
Mechanical and microstructural properties of robotic Cold Metal Transfer (CMT) welded 5081-H111 and 6082-T651 aluminum alloys [J].
Microstructure and mechanical properties of aluminum 5083 weldments by gas tungsten arc and gas metal arc welding [J].
Effect of welding parameters on mechanical and microstructural properties of AA6082 joints produced by friction stir welding [J].
Static tensile properties.
Mechanical and microstructural properties of robotic Cold Metal Transfer (CMT) welded 5081-H111 and 6082-T651 aluminum alloys [J].
Microstructure and mechanical properties of aluminum 5083 weldments by gas tungsten arc and gas metal arc welding [J].
Effect of welding parameters on mechanical and microstructural properties of AA6082 joints produced by friction stir welding [J].
Online since: February 2008
Authors: Zhi Hao Jin, Jian Feng Yang, Ji Qiang Gao, Shao Yun Shan, Yuan Lu
The influences of four types of sintering additives on the microstructure and
mechanical properties of the porous Si3N4 ceramics were investigated.
Effects of different sintering additives on microstructures and mechanical properties of porous Si3N4 ceramics were investigated.
Because of the similar green porosity, the linear shrinkage and weight loss are two main factors determining the porosity of the sintered samples.
Due to the well developed microstructure, samples La, Y, and Lu showed outstanding mechanical properties of 2-7 MPa, considering of the high porosity of 74-79%.
The influences of sintering additives on microstructure and mechanical properties were investigated.
Effects of different sintering additives on microstructures and mechanical properties of porous Si3N4 ceramics were investigated.
Because of the similar green porosity, the linear shrinkage and weight loss are two main factors determining the porosity of the sintered samples.
Due to the well developed microstructure, samples La, Y, and Lu showed outstanding mechanical properties of 2-7 MPa, considering of the high porosity of 74-79%.
The influences of sintering additives on microstructure and mechanical properties were investigated.
Online since: March 2022
Authors: Gerald Sanqui Robles, John Ryan C. Dizon, Michaela T. Espino, Ray Noel M. Delda, Renz Lui B. del Rosario
Factors and their levels.
This means that the physical dimensions of the part is affected by the size of the part, which is related to the 'size effect', usually observed pertaining to the mechanical properties of materials.
Lastly, 10 mm3 samples were found to be the most affected samples by the factors: layer thickness and infill density.
Hence, it can be concluded that the physical dimension of the samples is affected by the size related to the so-called 'size effect' which is usually observed when referring to it mechanical properties.
Kumar, “Analysis of the factors affecting the dimensional accuracy of 3D printed products,” Mater.
This means that the physical dimensions of the part is affected by the size of the part, which is related to the 'size effect', usually observed pertaining to the mechanical properties of materials.
Lastly, 10 mm3 samples were found to be the most affected samples by the factors: layer thickness and infill density.
Hence, it can be concluded that the physical dimension of the samples is affected by the size related to the so-called 'size effect' which is usually observed when referring to it mechanical properties.
Kumar, “Analysis of the factors affecting the dimensional accuracy of 3D printed products,” Mater.
Online since: July 2016
Authors: Jun Wei, Ming Jen Tan, Jun Feng Guo, Zheng Lin Du
Metal matrix composites can provide significantly improvement in the mechanical properties as compared to conventional monolithic materials.
There are various factors that contribute to the strengthening mechanism of composites.
Size parameters characteristic of a material’s microstructure significant affects the mechanical properties of the material when all the other parameters were kept constant.
Guo et al. studied the evolution of grain structure and mechanical properties of the FSP of AA6061 alloy reinforced with nano-Al2O3 reinforcements [8].
Chen, Microstructure evolution and mechanical properties of dissimilar friction stir welded joints between AA1100-B4C MMC and AA6063 alloy, Mater.
There are various factors that contribute to the strengthening mechanism of composites.
Size parameters characteristic of a material’s microstructure significant affects the mechanical properties of the material when all the other parameters were kept constant.
Guo et al. studied the evolution of grain structure and mechanical properties of the FSP of AA6061 alloy reinforced with nano-Al2O3 reinforcements [8].
Chen, Microstructure evolution and mechanical properties of dissimilar friction stir welded joints between AA1100-B4C MMC and AA6063 alloy, Mater.