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Online since: October 2014
Authors: Sheng Li Tang, Bei Bei Han, Li Hai Sun, Zhi Bin Li
Analysis of the instability mechanism of slope
Factors affecting the slope stability analysis
The slope was formed by cut ridges and fill ravines.
This slope is adapted to the new state of stress that will occur in the form corresponding to achieve reduced stress This is the internal factors of landslide, but evolution is often induced by extrinsic factors.
Internal factors include the properties of geotechnical body of slope, geological structure and morphology, groundwater; extrinsic factors included: surface water and climate, weathering, slope vegetation, earthquakes and human activities etc..
According to factors that affect slope stability analyze as follow: The shape of the slope.
The silt content of soil layer is higher, the overall engineering properties is ordinary; Lishi loess is lump, more dense, uniform texture, pores large, and does not have the bedding, which engineering properties is genneral; The third is seriously weathering and joint fissure development that joint surface was infected into a reddish brown by iron, which project performance is poor.
This slope is adapted to the new state of stress that will occur in the form corresponding to achieve reduced stress This is the internal factors of landslide, but evolution is often induced by extrinsic factors.
Internal factors include the properties of geotechnical body of slope, geological structure and morphology, groundwater; extrinsic factors included: surface water and climate, weathering, slope vegetation, earthquakes and human activities etc..
According to factors that affect slope stability analyze as follow: The shape of the slope.
The silt content of soil layer is higher, the overall engineering properties is ordinary; Lishi loess is lump, more dense, uniform texture, pores large, and does not have the bedding, which engineering properties is genneral; The third is seriously weathering and joint fissure development that joint surface was infected into a reddish brown by iron, which project performance is poor.
Online since: October 2008
Authors: Fei Qiao, Wei Lin, C.K. Chau, Zongjin Li
Effects of magnesia to phosphate molar ratio, blending ratio and borax
addition on setting time, workability and mechanical properties of MPC cement paste were
investigated.
But the structure of magnesia is affected by many factors including calcination temperature, grinding and even the precursor used to produce magnesia.
Effect of M/P on the Properties of MPC Paste.
Among the parameters affecting the properties of MPC, M/P ratio is one of the most important ones [7].
Besides of the proper selection of magnesia, M/P ratio and borax addition are the other main factors affecting the strength development of MPC.
But the structure of magnesia is affected by many factors including calcination temperature, grinding and even the precursor used to produce magnesia.
Effect of M/P on the Properties of MPC Paste.
Among the parameters affecting the properties of MPC, M/P ratio is one of the most important ones [7].
Besides of the proper selection of magnesia, M/P ratio and borax addition are the other main factors affecting the strength development of MPC.
Online since: January 2012
Authors: Xu Dong Zhou, Xiang Ru Liu, Xu Yi Shan
The researches of non-oriented silicon steel are mainly focused on the effect of main processing parameters on the microstructure and magnetic properties, but there have been few studied about its flow stress until now.
In this paper, the non-oriented silicon steel 50A1300 of hot forming is studied by thermal-mechanical simulation method.
Introduction The researches of non-oriented silicon steel are mainly focused on the effect of main processing parameters on the microstructure and magnetic properties[1-3].
(2) Statistical analysis of experimental results shown that the strain rate and deformation temperature are not only the most sensitive factors, but also processing control factors
Guan: Deformation resistance of metal, Mechanical Industry Press, Beijing, (1989) p211-229 (In Chinese) [12] C.
In this paper, the non-oriented silicon steel 50A1300 of hot forming is studied by thermal-mechanical simulation method.
Introduction The researches of non-oriented silicon steel are mainly focused on the effect of main processing parameters on the microstructure and magnetic properties[1-3].
(2) Statistical analysis of experimental results shown that the strain rate and deformation temperature are not only the most sensitive factors, but also processing control factors
Guan: Deformation resistance of metal, Mechanical Industry Press, Beijing, (1989) p211-229 (In Chinese) [12] C.
Online since: March 2022
Authors: Alireza Kalantari, Abdul Manaf Hashim, Shaharin Fadzli Abd Rahman, Yusefi Mostafa
Carrier mobility of the graphene thin film is one of the most crucial factors to achieve superior device performance.
Factors that influence the carrier mobility include film crystallinity, layer number, presence of contaminations, and effect of the substrate.
However, factors such as surface phonons [10], roughness [11], and trapped charges [12] restrict the carrier mobility.
The graphene thin-film is expected to possess superior electrical properties.
Young, Mechanical properties of graphene and graphene-based nanocomposites, Progress in Materials Science. 90 (2017) 75-127
Factors that influence the carrier mobility include film crystallinity, layer number, presence of contaminations, and effect of the substrate.
However, factors such as surface phonons [10], roughness [11], and trapped charges [12] restrict the carrier mobility.
The graphene thin-film is expected to possess superior electrical properties.
Young, Mechanical properties of graphene and graphene-based nanocomposites, Progress in Materials Science. 90 (2017) 75-127
Online since: January 2005
Authors: János Lukács
The purpose of the paper is the
short presentation of these dimensions, affecting the applicable techniques and methods.
The aim of the research work is the answering of the question of the technical dimension, affecting the economic dimension.
The damage or fracture during an unordinary application - different from the designed one - not affects the basic concept.
Good example for this if we imagine the levels as the faces of a tetrahedron; in this case the summit of the tetrahedron will be the materials characteristics, the damage processes, the results of the destructive examinations, and the material properties databank.
DEFECT SIZE AND TYPE AS ABOVE, PLUS PIPE DATA, PIPE PRESSURE AS ABOVE, BUT ADDITIONAL DEFECT, PIPE AND MATERIAL DATA AS ABOVE, PLUS PIPE SAMPLE OR MATERIAL PROPERTIES AS ABOVE, PLUS DISTRIBUTIONS OF PIPE, MATERIAL AND DEFECT DATA STAGE 1 QUALITATIVE e.g.
The aim of the research work is the answering of the question of the technical dimension, affecting the economic dimension.
The damage or fracture during an unordinary application - different from the designed one - not affects the basic concept.
Good example for this if we imagine the levels as the faces of a tetrahedron; in this case the summit of the tetrahedron will be the materials characteristics, the damage processes, the results of the destructive examinations, and the material properties databank.
DEFECT SIZE AND TYPE AS ABOVE, PLUS PIPE DATA, PIPE PRESSURE AS ABOVE, BUT ADDITIONAL DEFECT, PIPE AND MATERIAL DATA AS ABOVE, PLUS PIPE SAMPLE OR MATERIAL PROPERTIES AS ABOVE, PLUS DISTRIBUTIONS OF PIPE, MATERIAL AND DEFECT DATA STAGE 1 QUALITATIVE e.g.
Online since: May 2020
Authors: Ping Zhong, Wei Sheng, Zhen Ye Zhao, Mu Tong Liu
The chemical composition, microstructure and mechanical properties of the alloy were analyzed and tested.
Its tensile strength reaches 1980 MPa and has good toughness and fatigue properties.
Mechanical Properties.
Table 3 Data of mechanical properties of steel.
Lee, Intergranular M23C6 carbide precipitation behavior and its effect on mechanical properties of Inconel 690 tubes, Metallurgical and Materials Transactions A 46(9) (2015) 4020-4026
Its tensile strength reaches 1980 MPa and has good toughness and fatigue properties.
Mechanical Properties.
Table 3 Data of mechanical properties of steel.
Lee, Intergranular M23C6 carbide precipitation behavior and its effect on mechanical properties of Inconel 690 tubes, Metallurgical and Materials Transactions A 46(9) (2015) 4020-4026
Online since: August 2016
Authors: M. Wirawan Pu, Fandi Alfarizi, Triyono Triyono, Yustiasih Purwaningrum
The aimed of this research is to determine the feasibility and effect of the mixture of the shielding gas in the physical and mechanical properties.
The measured of mechanical properties with regard to strength, hardness and toughness using, tensile test, bending test, Vickers hardness Test, and Charpy impact test respectively.
The physical properties examined with optical microscope.
Introduction The Study for The Maritime Traffic Safety System Development Plan reports that in the year 2007-2011 the percentage of the factors causing the sea accident caused by technical factors is 59%.
The composition of shielding gas and filler wire in GMAW of HSLA steels determines inclusion characteristic, microstructures, and mechanical properties [4].
The measured of mechanical properties with regard to strength, hardness and toughness using, tensile test, bending test, Vickers hardness Test, and Charpy impact test respectively.
The physical properties examined with optical microscope.
Introduction The Study for The Maritime Traffic Safety System Development Plan reports that in the year 2007-2011 the percentage of the factors causing the sea accident caused by technical factors is 59%.
The composition of shielding gas and filler wire in GMAW of HSLA steels determines inclusion characteristic, microstructures, and mechanical properties [4].
Online since: June 2012
Authors: Hong Kui Jiang, Li Liu, Xian Chun Song
The effects of different types of working ceramic ball chains on the mechanical properties of the ball screw were studied and compared through multi-body dynamic simulation.
The result has shown that these factors affect the dynamic characteristic of ball screw dramatically, and the dynamic characteristic of ball screw at high speed is greatly different from that of ball screw made by chromium-molybdenum steel.
Zhang et al.[4] discussed the influence factors on impact force between steel ball and re-circulating mechanism-material properties, groove geometry of re-circulating mechanism and impact angle, etc for example.
(b) Impact model of steel ball and re-circulating mechanism Where is the normal deformation, and is the Hertz stiffness which depends on the material properties and contact geometry.
Jiang, “Research on the impact between balls and re-circulating mechanism in ball screw”, China Mechanical Engineering, 7(2008):pp. 850-853,881
The result has shown that these factors affect the dynamic characteristic of ball screw dramatically, and the dynamic characteristic of ball screw at high speed is greatly different from that of ball screw made by chromium-molybdenum steel.
Zhang et al.[4] discussed the influence factors on impact force between steel ball and re-circulating mechanism-material properties, groove geometry of re-circulating mechanism and impact angle, etc for example.
(b) Impact model of steel ball and re-circulating mechanism Where is the normal deformation, and is the Hertz stiffness which depends on the material properties and contact geometry.
Jiang, “Research on the impact between balls and re-circulating mechanism in ball screw”, China Mechanical Engineering, 7(2008):pp. 850-853,881
Online since: August 2013
Authors: Er Xia Du, Wen Jiang Zhang, Bei Zhan Liu, Shao Chong Yang
Investigation on PBL shear connector’s failure modes and their related factors is conducted.
Compared with other traditional forms of shear connector, it shows many excellent mechanical properties such as load carrying capacity, ductility and fatigue resistance.
Failure mode related factors of PBL shear connector Normal factor Strength of Concrete.
Concerned by all test researchers, it is an important factor which affects the mechanical properties of PBL shear connector.
Otherwise, the steel plate may yield or buckle while the rebar is still in elastic stage, and the mechanical properties of rebar are not fully utilized.
Compared with other traditional forms of shear connector, it shows many excellent mechanical properties such as load carrying capacity, ductility and fatigue resistance.
Failure mode related factors of PBL shear connector Normal factor Strength of Concrete.
Concerned by all test researchers, it is an important factor which affects the mechanical properties of PBL shear connector.
Otherwise, the steel plate may yield or buckle while the rebar is still in elastic stage, and the mechanical properties of rebar are not fully utilized.
Online since: April 2010
Authors: Simon C. Hopkins, Bartek A. Glowacki, Ludovic Thilly, Marco Di Michiel, Ian Pong, Christian Scheuerlein, Carmine Senatore, Alexandre Gerardin, Luc-Rene Oberli, Guillaume Geandier, Luca Bottura
Modular superconducting magnets such as those used in the LHC require connection,
and the joint has to be soldered at temperatures above the melting point of solder without its
properties, in particular current delivery capacity, severely affected.
Nanostructure changes before reactive diffusion are deduced from superconducting properties measurement whereas microstructure and structural changes are detected by microscopy and mechanical testing.
The same batch of samples was used also for superconducting properties measurements, mechanical tests, and metallography.
Superconducting Properties Measurements.
This may be due to the presence of residual stresses or other non-equilibrium factors.
Nanostructure changes before reactive diffusion are deduced from superconducting properties measurement whereas microstructure and structural changes are detected by microscopy and mechanical testing.
The same batch of samples was used also for superconducting properties measurements, mechanical tests, and metallography.
Superconducting Properties Measurements.
This may be due to the presence of residual stresses or other non-equilibrium factors.