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Online since: March 2010
Authors: Wen Xin Ti, Ming Xiang Gong, Peng Liu, Lei Lin, Fei Xue, Guo Gang Shu, Zhao Xi Wang
For the reference problem, the effective Misses stress
distribution in the time domain was investigated near the socket weld with the result as shown in Fig.4
and the different stress level counted as shown in Fig.5.
0 20 40 60 80 100 120 140 160 180
0
100
200
300
400
500
Count Number
Mises Stress (MPa)
Count
101 102 103 10
4 105 106 10
7 10
8 109 1010 1011
0
1x10
3
2x10
3
3x10
3
4x10
3
Stress (MPa)
Number of circles
Fig. 4 Stress level at socket weld Fig.5 Stress level statistics Fig.6 S-N curve of material
According to the Miners linear cumulative damage theory, the cumulated damage factor can be
calculated as:
1 1
D D
m m
i
i
i i i
n
�==
= =∑ ∑ (2)
where Di is the ith damage factor for stress level σi and ni, �i are the stress cycle numbers in dynamic
stress calculations and the fatigue curves for stress
Acknowledgements Financial supports are from the China Postdoctoral Science Foundation (20090450161).
References [1] P.Moussou, Journal of Fluids and structures Vol.18 (2003) p.149 [2] Young Hwan Choi, Sun Yeong Choi, Nuclear Engineering and Design Vol.237(2007) p.213 [3] Chee-Hoe Foong, Journal of Sound and Vibration Vol.303 (2007) p.58 [4] B.Sreejith, K.Jayaraj, N.Ganesan, Nuclear Engineering and Design Vol.227(2004) p.313 [5] F.Birgersson, S.Finnveden, G.Robert, Journal of Sound and Vibration Vol.278 (2004) p.749
Acknowledgements Financial supports are from the China Postdoctoral Science Foundation (20090450161).
References [1] P.Moussou, Journal of Fluids and structures Vol.18 (2003) p.149 [2] Young Hwan Choi, Sun Yeong Choi, Nuclear Engineering and Design Vol.237(2007) p.213 [3] Chee-Hoe Foong, Journal of Sound and Vibration Vol.303 (2007) p.58 [4] B.Sreejith, K.Jayaraj, N.Ganesan, Nuclear Engineering and Design Vol.227(2004) p.313 [5] F.Birgersson, S.Finnveden, G.Robert, Journal of Sound and Vibration Vol.278 (2004) p.749
Online since: February 2014
Authors: Ji Ming Tian, Xin Tan
The input torque is 1156.2 NM, the output speed is 1546 r/m, the total transmission ratio is 62.24, the average life expectancy is15 years, material of the gears and gear ring of planetary system is 45 steel, quenching and tempering.
Acknowledgement In this paper, the research was sponsored by the Natural Science Foundation of Hubei Province Education Department (Project No.
Journal of Mechanical Design, 2008, 130: 072602
Journal of machine design, 2009, 26(11): 51-53 [3] Donghao Zhang, Fenglin Wu, Shitong Zhang, etc.
Journal of machine design, 2013, 37(002): 44-46
Acknowledgement In this paper, the research was sponsored by the Natural Science Foundation of Hubei Province Education Department (Project No.
Journal of Mechanical Design, 2008, 130: 072602
Journal of machine design, 2009, 26(11): 51-53 [3] Donghao Zhang, Fenglin Wu, Shitong Zhang, etc.
Journal of machine design, 2013, 37(002): 44-46
Online since: October 2012
Authors: Wei Jun Yang, Yu Shuang Ni, Yao Hua Jiang
School of Civil Engineering and Architecture, Changsha University of Science and Technology.Changsha 410004, China
2.
Subject investigated The Elastic modulus and the Poisson’s coefficient of an equivalent orthotropic material can be derived from the elastic strains of the basic cell loaded with a uniform normal stress on the two faces perpendicular to a given axis(x,y or z).
Journal of HunanUniversity (NaturalSciences), 2008(4), 29-32.In Chinese [4] A.
International Journal of Solids and Structures 39 (2002), 3233–3255
Journal of Structural Engineering, ASCE, 1998,124(8):1761-1784.
Subject investigated The Elastic modulus and the Poisson’s coefficient of an equivalent orthotropic material can be derived from the elastic strains of the basic cell loaded with a uniform normal stress on the two faces perpendicular to a given axis(x,y or z).
Journal of HunanUniversity (NaturalSciences), 2008(4), 29-32.In Chinese [4] A.
International Journal of Solids and Structures 39 (2002), 3233–3255
Journal of Structural Engineering, ASCE, 1998,124(8):1761-1784.
Online since: June 2014
Authors: Zhi Qing Zhao, Li Tao
The local architects trained in Chinese Universities must adapt to this changing, uncertain, competitive era, so it requires student creativity train must be strengthened in colleges architectural education, depth-understanding the essence of building creative problem, and to further explore the development and training of students' creativity for forming teaching law, culture the architectural talents with the international standards creative ability as soon as possible. [2]
The architecture belongs to the multidisciplinary field, including the humanities, natural sciences, technology, creative arts.
Encourage students to stand on the podium, in the form of language to analyze the nature of the building, environmental characteristics, mission requirements, material color and detail practices and so on.
[3] Wu liangyong: Architecture Journal. 1999 (8) p.124-127
[4] Nan Shunxun: Architectural Journal, 1989 (6) p.77-80
[5] Gary Hack: Architectural Journal, 2004 (2) p.23-26
Encourage students to stand on the podium, in the form of language to analyze the nature of the building, environmental characteristics, mission requirements, material color and detail practices and so on.
[3] Wu liangyong: Architecture Journal. 1999 (8) p.124-127
[4] Nan Shunxun: Architectural Journal, 1989 (6) p.77-80
[5] Gary Hack: Architectural Journal, 2004 (2) p.23-26
Online since: September 2007
Authors: Y. Tadokoro, S. Kinebuchi, Y. Hasuda, Y. Suzuki, T. Furusawa, T. Ohashi
Furusawa
4,d
1
Utsunomiya Technical High School, 9-25 Kyo-machi, Utsunomiya, 320-8558 Japan
2
Tsukuba University, 1-1-1 Tennodai, Tsukuba, 305-8577 Japan
3
Industrial Technology Center of Tochigi Prefecture, 1710 Tsuruta-machi,
Utsunomiya, 320-0851 Japan
4
School of Science and Engineering, Teikyo University, 1-1 Toyosatodai,
Utsunomiya, 320-0003 Japan
a
hasuda45@yahoo.co.jp, cfuru@mps.teikyou-u.ac.jp,d oohashit02@pref.tochigi.jp
Key Words: Grinding, stainless steel, SUS304, Metal bonded CBN wheel
Abstract.
Surface grinding technology with the utmost precision is required for stainless steel to be used as structural material, but due to its high mechanical properties, the precision grinding is extremely difficult [1,2].
References [1] H.Tanaka, N.Kumagaya: Journal of the Japan Society for precision Engineering, 58, 4,601-603 (1992), [2] T.Matsuo, Y.Ohbuti, Y.Fukui & H.Shibata :Proc. of S.M.E., The Third Int.
[3] H.Notoya, S.Yoneya, Y.Takatsuji: Journal of the Japan Institute of Metals, 52, 2,217-222 (1988) [4] Y.Hasuda & K.Kishi:Proc. of International Conference on Precision Surface Finishing and Burr Technology,110-115, (1994)130
[5] T.Matsuo: Journal of the Japan Society for precision Engineering, 58, 4,571-612 (1992) [6] M.Inoue, Y.Kamanaka: Proc. of Spring Conf. of the Japan Society for precision Engineering, 2,681-682 (1995) [7] K.Yokoyama, S.Hosotani: Proc. of the Japan Society for Abrasive technology, 186-187(1996)
Surface grinding technology with the utmost precision is required for stainless steel to be used as structural material, but due to its high mechanical properties, the precision grinding is extremely difficult [1,2].
References [1] H.Tanaka, N.Kumagaya: Journal of the Japan Society for precision Engineering, 58, 4,601-603 (1992), [2] T.Matsuo, Y.Ohbuti, Y.Fukui & H.Shibata :Proc. of S.M.E., The Third Int.
[3] H.Notoya, S.Yoneya, Y.Takatsuji: Journal of the Japan Institute of Metals, 52, 2,217-222 (1988) [4] Y.Hasuda & K.Kishi:Proc. of International Conference on Precision Surface Finishing and Burr Technology,110-115, (1994)130
[5] T.Matsuo: Journal of the Japan Society for precision Engineering, 58, 4,571-612 (1992) [6] M.Inoue, Y.Kamanaka: Proc. of Spring Conf. of the Japan Society for precision Engineering, 2,681-682 (1995) [7] K.Yokoyama, S.Hosotani: Proc. of the Japan Society for Abrasive technology, 186-187(1996)
Online since: September 2013
Authors: Noorasikin Samat, Fatimah A’thiyah Sabaruddin
The number of applications of these materials has increased from year to year.
All materials were dried for 6 hours at 60 oC.
“Nanocomposites” in Fire Retardant Materials, A.R.
Journal of Applied Polymer Science.
Advanced Materials Research.
All materials were dried for 6 hours at 60 oC.
“Nanocomposites” in Fire Retardant Materials, A.R.
Journal of Applied Polymer Science.
Advanced Materials Research.
Online since: May 2014
Authors: Qing Liu, Li Ping Deng, Ze Yuan Sun, Xiao Fang Yang, Ke Han
Effects of annealing on microstructure and properties of Cu-Nb wires
Liping Deng1,2,a, Ke Han2,b, Zeyuan Sun1,c, Xiaofang Yang1,d, Qing Liu1,e
1College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China
2National High Magnetic Field Laboratory, Tallahassee, Florida, 32310, USA
aldeng@cqu.edu.cn, bhan@magnet.fsu.edu, c249439514@qq.com, dyangxf@cqu.edu.cn, eqingliu@cqu.edu.cn
Key words: Cu-Nb microcomposite wires; annealing; hardness; resistivity
Abstract
This paper reports the results of investigation into the effects of annealing on microstructure, hardness, and electrical resistivity of accumulated drawing and bundling (ADB) Cu-Nb wires.
These materials are good candidates as high strength, and high conductivity wires for building high-field magnets [5].
[4] Han K, Strength and Ductility of Nanostructured Composites with Co-Deformable Components, Materials Science Forum. 633-634 ( 2010) 383-92
[9] Deng L, Yang X, Han K, Lu Y, Liang M, Liu Q, Microstructure and texture evolution of Cu–Nb composite wires, Materials Characterization. 81 (2013) 124-33
[11] Guizhong G, Effect of annealing treatment on microstructure and property of red copper, Journal of Pingyuan University. 23 (2006) 129-31
These materials are good candidates as high strength, and high conductivity wires for building high-field magnets [5].
[4] Han K, Strength and Ductility of Nanostructured Composites with Co-Deformable Components, Materials Science Forum. 633-634 ( 2010) 383-92
[9] Deng L, Yang X, Han K, Lu Y, Liang M, Liu Q, Microstructure and texture evolution of Cu–Nb composite wires, Materials Characterization. 81 (2013) 124-33
[11] Guizhong G, Effect of annealing treatment on microstructure and property of red copper, Journal of Pingyuan University. 23 (2006) 129-31
Online since: April 2011
Authors: Zhi Xia Qiao, Dan Tian Zhang, Ze Sheng Yan, Yong Chang Liu
Effect of Austenization Holding Time on the Martensitic Transformation in 30CrNi3MoV Ultra-High-Strength Steel
Zhixia Qiao1,a, Dantian Zhang2, Yongchang Liu2,b and Zesheng Yan2
1School of Mechanical Engineering, Tianjin University of Commerce, Tianjin 300134, PR China
2School of Materials Science & Engineering, Tianjin Key Laboratory of Composite and Functional Materials, Tianjin University, Tianjin 300072, PR China.
Experimental Materials and Procedures The chemical composition of the explored 30CrNi3MoV steel is as follows (in weight percent): 0.28C, 0.26Si, 0.45Mn, 3.0Ni, 0.42Mo, 0.90Cr, 0.003S and 0.009P.
Acknowledgements The authors are grateful to the National Natural Science Foundation of China- Steel and Iron Union Foundation, (No. 50834011), the Youth Science Research Foundation of Tianjin University of Commerce (No. 080105) References [1] C.S.
Leda G, Journal of Materials Processing Technology, Vol. 64(1997), p. 247 [5] Z.X.
Xu, Martensitic Transformation and Martensite(Second Edition), (Science press, China, 1999).
Experimental Materials and Procedures The chemical composition of the explored 30CrNi3MoV steel is as follows (in weight percent): 0.28C, 0.26Si, 0.45Mn, 3.0Ni, 0.42Mo, 0.90Cr, 0.003S and 0.009P.
Acknowledgements The authors are grateful to the National Natural Science Foundation of China- Steel and Iron Union Foundation, (No. 50834011), the Youth Science Research Foundation of Tianjin University of Commerce (No. 080105) References [1] C.S.
Leda G, Journal of Materials Processing Technology, Vol. 64(1997), p. 247 [5] Z.X.
Xu, Martensitic Transformation and Martensite(Second Edition), (Science press, China, 1999).
Online since: September 2025
Authors: Navab Singh, Surasit Chung, Shiv Kumar, Lakshmi Kanta Bera, Abdul Hannan Yeo, Umesh Chand, Qin Gui Roth Voo, Jia Wei Xie, Xuan Sang Nguyen, Xiao Gong, Yee Chia Yeo
Furthermore, ITO is a CMOS compatible material which has been widely used in the industry [3].
Acknowledgement This work was supported by A*STAR (Agency for Science, Technology and Research Singapore), under Grant No.
Raineri, “Ohmic Contacts to SiC,” International Journal of High-Speed Electronics and Systems, vol. 15, no. 04, pp. 781–820, (2005) [6] R.
Mitchel, “Material Selection and Interfacial Reaction in Ohmic-Contact Formation on SiC,” Springer series in materials science, pp. 303–343, (2024) [8] S.
Tanimoto and Hiromichi Oohashi, “High-Temperature Reliable Ni2Si-Based Contacts on SiC Connected to Si-Doped Al Interconnect via Ta/TaN Barrier,” Materials science forum, vol. 615–617, pp. 561–564, (2009) [9] B.
Acknowledgement This work was supported by A*STAR (Agency for Science, Technology and Research Singapore), under Grant No.
Raineri, “Ohmic Contacts to SiC,” International Journal of High-Speed Electronics and Systems, vol. 15, no. 04, pp. 781–820, (2005) [6] R.
Mitchel, “Material Selection and Interfacial Reaction in Ohmic-Contact Formation on SiC,” Springer series in materials science, pp. 303–343, (2024) [8] S.
Tanimoto and Hiromichi Oohashi, “High-Temperature Reliable Ni2Si-Based Contacts on SiC Connected to Si-Doped Al Interconnect via Ta/TaN Barrier,” Materials science forum, vol. 615–617, pp. 561–564, (2009) [9] B.
Online since: October 2014
Authors: Chee Fai Tan, K.F. Liew, S.N. Khalil, M.R. Said, W. Chen, G.W.M. Rauterberg, J. Karjanto, Z.T. Yau, B.L. Tan, T.L. Lim
In this project, the bus passenger seat is integrated with air-based and gel-based material.
The automobile seat comfort is designed and came out with an ergonomics background which is developed in the field of applied science [6].
There is a ready-made seats with different materials are studied by the physiological laboratory test methods skin model and seat comfort tester.
Total design of active neck support system for economy class aircraft seat, Applied Mechanics and Materials. 372 (2013) 657-660
Bartels, Thermal comfort of aeroplane seats: influence of different seat materials and the use of laboratory test methods, Applied Ergonomics. 34 (2003) 393-399
The automobile seat comfort is designed and came out with an ergonomics background which is developed in the field of applied science [6].
There is a ready-made seats with different materials are studied by the physiological laboratory test methods skin model and seat comfort tester.
Total design of active neck support system for economy class aircraft seat, Applied Mechanics and Materials. 372 (2013) 657-660
Bartels, Thermal comfort of aeroplane seats: influence of different seat materials and the use of laboratory test methods, Applied Ergonomics. 34 (2003) 393-399