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Online since: October 2016
Authors: Lin Hua, Hua Jie Mao, Fei Zhou, Yan Xiong Liu
The blanked material was assumed to be elasto-plastic.
The reasonable fracture criterion can calculate the deformation limit for various materials accurately [8].
Acknowledgement The authors would like to thank the National Natural Science Foundation of China(Grant No. 51375356 and 51305316), Hubei Province Science & Technology Support Project(2015BAA040) and Innovative Research Team Development Program of Ministry of Education of China(No.
An investigation of material flow analysis in fineblanking process.
Okimoto, Criterion for ductile fracture and their applications, Journal of Mechanical Working Technology. 4(1980)65-81
The reasonable fracture criterion can calculate the deformation limit for various materials accurately [8].
Acknowledgement The authors would like to thank the National Natural Science Foundation of China(Grant No. 51375356 and 51305316), Hubei Province Science & Technology Support Project(2015BAA040) and Innovative Research Team Development Program of Ministry of Education of China(No.
An investigation of material flow analysis in fineblanking process.
Okimoto, Criterion for ductile fracture and their applications, Journal of Mechanical Working Technology. 4(1980)65-81
Online since: July 2011
Authors: Pei Yan Wang, Shi Hui Huo, Fu Sheng Wang, Zhu Feng Yue
The materials, thickness and layups of specimens are presented in Tab.2.
Composites Science and Technology 63(2003), p. 893-905 [4] Hart-Smith, L.J.
International Journal of Fatigue 24(2002), p. 39-47 [9] G.
Multidiscipline Modeling in Materials and Structures, 2010, 6(1), p. 3-44 [15] B.K.Nanda.
Journal of Sound and Vibration 290(2006), p. 1290-1314 [16] Mohan Mittur Narayana.
Composites Science and Technology 63(2003), p. 893-905 [4] Hart-Smith, L.J.
International Journal of Fatigue 24(2002), p. 39-47 [9] G.
Multidiscipline Modeling in Materials and Structures, 2010, 6(1), p. 3-44 [15] B.K.Nanda.
Journal of Sound and Vibration 290(2006), p. 1290-1314 [16] Mohan Mittur Narayana.
Online since: March 2012
Authors: Rui Song Yang, Ming Tian Li, Chun Hai Liu, Xue Jun Cui, Yong Zhong Jin
The Synthesis of Cu0.81Ni0.19 intermetallics by Mechanical alloying
Ruisong Yang1, 2, a, Mingtian Li1, b, Chunhai Liu2, c, Xuejun Cui2, d
and Yongzhong Jin1, e
1College of Materials and Chemical Engineering, Sichuan University of Science and Engineering, Zigong, 643000, China
2 Sichuan Key Provincial Laboratory of Material Corrosion and Protection, Zigong, 643000, China
ayangruisong@gmail.com, blimt63646616@yahoo.com.cn, clch0957@163.com, dcxj_2046@163.com, ejyzcd@163.com
Keywords: NiCu; Mechanical alloy; Intermetallic.
Intermetallic compounds comprise the class of metallic materials which today enjoy intense study by materials scientists and engineers.
These materials are already indispensable in many applications and offer the possibility of providing additional breakthroughs in performance in, for example, high temperature structural materials, magnetic materials, and hydrogen storage materials.
Experimental procedures Raw materials and analysis methods Nickel and copper powders with a size of 200 μm and purity of 99.9% were used as the raw materials.
Acknowledgment Project supported by the Research Foundation of Sichuan Key Provincial Laboratory of Material Corrosion and Protection (Grant No. 2011CL14) and the Foundation of Introduced Talent of Sichuan University of Science and Engineering (Grant No. 2009xjkRL008 and 2009xjkRL007).
Intermetallic compounds comprise the class of metallic materials which today enjoy intense study by materials scientists and engineers.
These materials are already indispensable in many applications and offer the possibility of providing additional breakthroughs in performance in, for example, high temperature structural materials, magnetic materials, and hydrogen storage materials.
Experimental procedures Raw materials and analysis methods Nickel and copper powders with a size of 200 μm and purity of 99.9% were used as the raw materials.
Acknowledgment Project supported by the Research Foundation of Sichuan Key Provincial Laboratory of Material Corrosion and Protection (Grant No. 2011CL14) and the Foundation of Introduced Talent of Sichuan University of Science and Engineering (Grant No. 2009xjkRL008 and 2009xjkRL007).
Online since: April 2021
Authors: Sergey Sidelnikov, Irina Belokonova, Ivan Dovzhenko
Langdon, Influence of grain size on the flow properties of an Al-Mg-Sc alloy over seven orders of magnitude of strain rate, Materials Science & Engineering.
Chattopadhyay, Development of a high temperature high strength Al alloy by addition of small amounts of Sc and Mg to 2219 alloy, Materials Science & Engineering.
Xiang, High strain rate superplasticity in an Al–Mg–Sc–Zr alloy processed via simple rolling, Materials Science & Engineering.
Advanced Materials Research. 922 (2014) 862-867
Ryum, Scandium in aluminum alloys, International Materials Reviews. 50(1) 2005 19-44.
Chattopadhyay, Development of a high temperature high strength Al alloy by addition of small amounts of Sc and Mg to 2219 alloy, Materials Science & Engineering.
Xiang, High strain rate superplasticity in an Al–Mg–Sc–Zr alloy processed via simple rolling, Materials Science & Engineering.
Advanced Materials Research. 922 (2014) 862-867
Ryum, Scandium in aluminum alloys, International Materials Reviews. 50(1) 2005 19-44.
Online since: May 2014
Authors: Shigeru Nagasawa, Yasushi Fukuzawa, Yoshiaki Shiga
Introduction
The wedge indentation processing is widely used for cutting off and creasing a complicated-form pattern from a sheet material.
The exponential coefficient –p appears to be varied with several mechanical or materials properties.
[3] Hallady, J.F. & Ulm, R.W.K., Creasing and Bending of Folding Boxboards, TAPPI Paper Trade Journal, 108(5), (1939), pp. 36-40
[6] Nagasawa, S., Fukuzawa, Y., Yamaguchi, T., Tsukatani, S. & Katayama, I., Effect of crease depth and crease deviation on folding deformation characteristics of coated paperboard, Journal of Materials Processing Technology, 140, (2003), pp. 157-162
[7] Nagasawa, S., Endo, R., Fukuzawa, Y., Uchino, S. & Katayama, I., Creasing characteristic of aluminum foil coated paperboard, Journal of Materials Processing Technology, 201, (2008), pp. 401–407
The exponential coefficient –p appears to be varied with several mechanical or materials properties.
[3] Hallady, J.F. & Ulm, R.W.K., Creasing and Bending of Folding Boxboards, TAPPI Paper Trade Journal, 108(5), (1939), pp. 36-40
[6] Nagasawa, S., Fukuzawa, Y., Yamaguchi, T., Tsukatani, S. & Katayama, I., Effect of crease depth and crease deviation on folding deformation characteristics of coated paperboard, Journal of Materials Processing Technology, 140, (2003), pp. 157-162
[7] Nagasawa, S., Endo, R., Fukuzawa, Y., Uchino, S. & Katayama, I., Creasing characteristic of aluminum foil coated paperboard, Journal of Materials Processing Technology, 201, (2008), pp. 401–407
Online since: June 2013
Authors: Xue Gong Bi, Peng Li, Wei Peng, Jindong Zhou, Kuangnian He, Shuzhou Zhong, Xiaobing Zhong, Kehui Liu
Though there have already appeared a few blast furnace expert systems of close loop [5], but for the furnace fed with poorer raw materials, the close-loop expert system did not succeed as expected [9].
To adapt to the variation of operational targets, raw materials conditions, furnace working profile and so on, the operators have to take a different strategy in the furnace control.
Gu: Journal of Wuhan University of Metallurgical Science and technology Vol. 21, no.3 (1998), p. 263 [13] X.
Zhang: Journal of Wuhan University of Metallurgical Science and technology Vol. 19, no.4 (1996), p. 395 [14] X.
Hui: Advanced Materials Research, Vol. 204-210, p.1254 [19] X.
To adapt to the variation of operational targets, raw materials conditions, furnace working profile and so on, the operators have to take a different strategy in the furnace control.
Gu: Journal of Wuhan University of Metallurgical Science and technology Vol. 21, no.3 (1998), p. 263 [13] X.
Zhang: Journal of Wuhan University of Metallurgical Science and technology Vol. 19, no.4 (1996), p. 395 [14] X.
Hui: Advanced Materials Research, Vol. 204-210, p.1254 [19] X.
Online since: January 2012
Authors: Qi Yuan Yu, Hao Yue Qiu
It is a systematic dynamic procedure for a construction enterprise to fulfill construction contracts and then organize construction resources as construction ability which is used for construction materials, and finally, the expected construction project is implemented.
Fig.1 shows that to acquire and maintain construction ability, a construction project needs labor force, construction mechanics, turnover materials and other construction resources.
What’s more, construction process consumes a large quantity of construction materials.
The different decisions made in the relevant decision points during construction project will directly affect the need of resources and materials.
All of these decision points would have the impact on the price level of resources and materials and the cost of construction project as well.
Fig.1 shows that to acquire and maintain construction ability, a construction project needs labor force, construction mechanics, turnover materials and other construction resources.
What’s more, construction process consumes a large quantity of construction materials.
The different decisions made in the relevant decision points during construction project will directly affect the need of resources and materials.
All of these decision points would have the impact on the price level of resources and materials and the cost of construction project as well.
Online since: October 2002
Authors: Ana P. Piedade, F. Judas, A. Proença, M. Moura, M.M. Figueiredo
Bone grafts prepared from natural and synthetic materials have also been used to treat
small defects; however, in cases that require structural or biomechanical support their clinical use is
limited [1].
These materials are illustrated in Fig. 1 and 2. 0...
Lemons (Eds): Biomaterials Science: an Introduction to Materials in Medicine ( Academic Press, USA 1996) pp.76ff
Hulbert: Journal of Biomedical Materials Research Vol. 2 (1971) pp.161ff.
Acknowledgement The authors wish to thank Mr Kilany from Micromeritics for the assistance in the characterisation of some macroporous materials.
These materials are illustrated in Fig. 1 and 2. 0...
Lemons (Eds): Biomaterials Science: an Introduction to Materials in Medicine ( Academic Press, USA 1996) pp.76ff
Hulbert: Journal of Biomedical Materials Research Vol. 2 (1971) pp.161ff.
Acknowledgement The authors wish to thank Mr Kilany from Micromeritics for the assistance in the characterisation of some macroporous materials.
Online since: September 2011
Authors: Yan Xu, Kei Leung Yung, Hang Liu, C.L. Kang, W. Tian
Theoretical Analysis
The ultrasonic vibration in the microwelding process will change kinetic energy into heat due to the high viscosity of polymer materials.
The complex sinusoidal strain of the flat viscoelastic material sheet is [8]: (1) The is the viscoelastic material’s strain amplitude.
Only consider the linearly material, the strain of the viscoelastic material can be derived as [9]: (3) So the energy that dissipated will be: (4) The large part of dissipated energy will change into heat, which will apply to the plastic material.
Within a few seconds, the micro pillars were formed on the plastic material by ultrasonic vibration.
[2] X Yu, C Lu, Journal of Applied Polymer Science Vol.102 (2006) p2990
The complex sinusoidal strain of the flat viscoelastic material sheet is [8]: (1) The is the viscoelastic material’s strain amplitude.
Only consider the linearly material, the strain of the viscoelastic material can be derived as [9]: (3) So the energy that dissipated will be: (4) The large part of dissipated energy will change into heat, which will apply to the plastic material.
Within a few seconds, the micro pillars were formed on the plastic material by ultrasonic vibration.
[2] X Yu, C Lu, Journal of Applied Polymer Science Vol.102 (2006) p2990
Online since: August 2013
Authors: Xia Xin Tao, Li Jing Shi, Xi Su
Site 2D Velocity Structure Imaged by Microtremors Method
Lijing SHI1,2,a, Xiaxin TAO1,b and Xi SU1,c
1Institute of Engineering Mechanics, China Earthquake Administration, Harbin, Heilongjiang, 150080, China
2University of Chinese Academy of Sciences, Beijing, 100049, China
ashljiem@yahoo.com.cn, btaoxiaxin@yahoo.com.cn,csuxi88@126.com
Keywords: Velocity Structure, Microtremors, Bi-harmonic Green Function, Kriging Method.
This shape will depend on the amount of tension being exerted as well as the stiffness of the material.
Acknowledgements This work was financially supported by the Science Foundation of Institute Engineering Mechanics, China Earthquake Administration (No.2011B09) and the Heilongjiang Natural Science Foundation (E201033).
Tokyo Univ. 25,(1957),p.415-457 [2] Sherif El-Hady, Elsayed Fergany, Seismic microzonation of Marsa Alam, Egypt using inversion HVSR of microtremor observations, Journal of Seismology, 16(1)(2012),p. 55-66 [3] SHI Lijing, TAO Xiaxin.
Validation Of Shallow S-Wave Velocity Structure Inversed By Microtremors Array Observation, 13th WCEE, (2004) [4] SHI Lijing, Tao Xiaxin, A two-step optimization strategy for S-wave velocity structure inversion, Chinese Journal of Geophysics, 52(8) (2009), p.2105-2112 (in Chinese)
This shape will depend on the amount of tension being exerted as well as the stiffness of the material.
Acknowledgements This work was financially supported by the Science Foundation of Institute Engineering Mechanics, China Earthquake Administration (No.2011B09) and the Heilongjiang Natural Science Foundation (E201033).
Tokyo Univ. 25,(1957),p.415-457 [2] Sherif El-Hady, Elsayed Fergany, Seismic microzonation of Marsa Alam, Egypt using inversion HVSR of microtremor observations, Journal of Seismology, 16(1)(2012),p. 55-66 [3] SHI Lijing, TAO Xiaxin.
Validation Of Shallow S-Wave Velocity Structure Inversed By Microtremors Array Observation, 13th WCEE, (2004) [4] SHI Lijing, Tao Xiaxin, A two-step optimization strategy for S-wave velocity structure inversion, Chinese Journal of Geophysics, 52(8) (2009), p.2105-2112 (in Chinese)