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Online since: September 2013
Authors: Cheng Wang
Introduction
Since the late nineteen ninties, higher education began the ultra-conventional, leapfrog development, and the government has invested a lot of manpower, material and financial resources, resulting in huge financial pressure[1-2].
Ku: Mathematical Modeling and Mathematical Experiments (Science press, Beijing, 2008)
Wei: Chinese science bulletin Vol. 17 (2000), p. 46-49
Lu: Journal of Systems Engineering Vol. 19 (2004), p. 45-46
Xiao: System Science and Mathematics Vol. 11 (1991), p. 43-45.
Ku: Mathematical Modeling and Mathematical Experiments (Science press, Beijing, 2008)
Wei: Chinese science bulletin Vol. 17 (2000), p. 46-49
Lu: Journal of Systems Engineering Vol. 19 (2004), p. 45-46
Xiao: System Science and Mathematics Vol. 11 (1991), p. 43-45.
Online since: February 2012
Authors: Li Liang, Yu Ming Guo
(2)
Where —Length of the screw;
E—Elastic modulus of the material, here is 200GPa, (carbon steel, 196~206GPa).
Acknowledgements This work was financially supported by Doctoral Research Foundation from Luoyang Institute of Science and Technology (2009BZ13).
References [1] Conggui Chen, Wu Wang, Li Zhang, Jingming He, Food Science, Vol. 25 (2004), 150-153, in Chinese
Proceedings of the 6th doctoral annual conference (Chinese Science and Technology Press, Beijing, 2008), in Chinese
Journal of Henan University of Technology (Natural Science Edition), Vol. 31 (2010), p. 71-74, in Chinese
Acknowledgements This work was financially supported by Doctoral Research Foundation from Luoyang Institute of Science and Technology (2009BZ13).
References [1] Conggui Chen, Wu Wang, Li Zhang, Jingming He, Food Science, Vol. 25 (2004), 150-153, in Chinese
Proceedings of the 6th doctoral annual conference (Chinese Science and Technology Press, Beijing, 2008), in Chinese
Journal of Henan University of Technology (Natural Science Edition), Vol. 31 (2010), p. 71-74, in Chinese
Online since: April 2014
Authors: Xiao Dong Li, Hao Chen Feng, Wei Ning Yuan
Parameters of material is showed in the Table 1.Results of the three equations is present in Table 2.
Table 1 Parameters of FRP bars Material Diameter[mm] Number τ0 [MPa] S0[mm] GFRP 9.5 3 11.56 0.7 Table2 Result of the three equations Equation Result[mm] Compared to this paper[%] This paper 0.243 0 Paper[3] 0.224 7.8 Paper[4] 0.216 11 Conclusions (1) This paper get a theoretical equation connected with the feature of FRP bars, which provide a new way for the calculation of crack width
Rock Mechanics and Engineering, 2000, 19 (3):339-341 (In Chinese) [3] PLEIMANN L G.Strength modulus of elasticity and bond of deformed FRP rods:Proceedings of the Specialty Conference,Material Engineering Division[C].
[J] Journal of Shenyang Jianzhu University(Natural Science), 2008,24(6):989-992.
“Recommendation for Design and Construction of Concrete Structure Using Continuous Fiber Reinforcing Materials”[S].Published by Research Committee on Continuous Fiber Reinforcing Materials,JSCE JPAN.Oct,1997.
Table 1 Parameters of FRP bars Material Diameter[mm] Number τ0 [MPa] S0[mm] GFRP 9.5 3 11.56 0.7 Table2 Result of the three equations Equation Result[mm] Compared to this paper[%] This paper 0.243 0 Paper[3] 0.224 7.8 Paper[4] 0.216 11 Conclusions (1) This paper get a theoretical equation connected with the feature of FRP bars, which provide a new way for the calculation of crack width
Rock Mechanics and Engineering, 2000, 19 (3):339-341 (In Chinese) [3] PLEIMANN L G.Strength modulus of elasticity and bond of deformed FRP rods:Proceedings of the Specialty Conference,Material Engineering Division[C].
[J] Journal of Shenyang Jianzhu University(Natural Science), 2008,24(6):989-992.
“Recommendation for Design and Construction of Concrete Structure Using Continuous Fiber Reinforcing Materials”[S].Published by Research Committee on Continuous Fiber Reinforcing Materials,JSCE JPAN.Oct,1997.
Online since: January 2015
Authors: Hui Ren Bai, Lan Xiang Chen, Yong Jian Shi
Calculation model
Fig.1 Calculation model
The application of damage mechanics in geotechnical engineering
One of the most cutting-edge subject of modern mechanics development is damage mechanics, it was set up to explain the strength loss caused by the internal defects and crack of materials.
Damage mechanics is divided into macroscopic damage mechanics and microscopic damage mechanics, macroscopic damage mechanics is a damage mechanics of studying how the damage caused by microscopic components inside the material ( such as matrix, particles, voids ) to influence the constitutive model of material.
Macroscopic damage mechanics is a damage mechanics that approach macro theory to the study of material damage behavior. various defects such as surface structure, joint within the rock mass has a very important effect on rock mechanical characteristics, the research on the rules of these defects influence on mechanical properties of rock mass is an important topic of the study of rock mass mechanics.
Journal of Mining & Safety Engineering.
Geological Science and Technology Information.
Damage mechanics is divided into macroscopic damage mechanics and microscopic damage mechanics, macroscopic damage mechanics is a damage mechanics of studying how the damage caused by microscopic components inside the material ( such as matrix, particles, voids ) to influence the constitutive model of material.
Macroscopic damage mechanics is a damage mechanics that approach macro theory to the study of material damage behavior. various defects such as surface structure, joint within the rock mass has a very important effect on rock mechanical characteristics, the research on the rules of these defects influence on mechanical properties of rock mass is an important topic of the study of rock mass mechanics.
Journal of Mining & Safety Engineering.
Geological Science and Technology Information.
Online since: March 2015
Authors: Hua Sun
Fig.2 The internal structure of box diagram
B.Material parameter set
Temperature field analysis of material physical properties data are shown in table 1.
Table 1 Physical Characteristic Data of Material for Temperature Field Analysis Material name Density ρ Specific heat c Heat transfer coefficient Air 1.2 1005 Equivalent heat transfer coefficient Aluminium silicate 300 400 0.032 Steel plate 7800 curve value curve value C.Generate radiation matrix Meshing In this article, the selection of thermal analysis unit SOLID70 for round steel, outside the box, heat insulation board and iron mesh of 3D model, some of thermal radiation plane in grid refinement, as shown in figure3.
Determine the material parameters: By "heat transfer" commonly used method of the surface of the material to the blackness found the radiation rate for rolling steel plate is , the radiation rate of round steel is 1.
Chinese Science Bulletin,2000 [4] Zhang J Z, Li L G.
Chinese Journal of Aeronautics,2001
Table 1 Physical Characteristic Data of Material for Temperature Field Analysis Material name Density ρ Specific heat c Heat transfer coefficient Air 1.2 1005 Equivalent heat transfer coefficient Aluminium silicate 300 400 0.032 Steel plate 7800 curve value curve value C.Generate radiation matrix Meshing In this article, the selection of thermal analysis unit SOLID70 for round steel, outside the box, heat insulation board and iron mesh of 3D model, some of thermal radiation plane in grid refinement, as shown in figure3.
Determine the material parameters: By "heat transfer" commonly used method of the surface of the material to the blackness found the radiation rate for rolling steel plate is , the radiation rate of round steel is 1.
Chinese Science Bulletin,2000 [4] Zhang J Z, Li L G.
Chinese Journal of Aeronautics,2001
Online since: July 2012
Authors: Wei Huang, Li Jun Zhu, Min Ming Zou, Fu Jun Shang, Xiao Yan Tian, Tao Zhang, Ji Hong Su
The Preparation Technology of Spherical Molybdenum
Powder in Continous Induction Plasma
HUANG Wei1, Zhu Lijun1, ZOU Minming1, SHANG Fujun1, Su Jihong1
TIAN Xiaoyan2 and ZHANG Tao3
1 Ningbo Branch of China Academyof Ordnance science, China
2 Bayannao’er Urban Planning and Design Institutes, China
3 Baotou Rare Earths Research Institute mengxi Magnetic materials Co., Ltd, China
Keywords: induction plasma technology, spherical molybdenum powder
Abstract.
The presence of the differences may be due to the material of the molybdenum powder existence difference.
Rare Metal Materials and Engineering ,2010,39 (6):451-454 [2]Wang D H, Yuan X B, Li Z K.
Rare Metal Materials and Engineering, 2007, 36 (: 562 -566
Journal of Applied Physics,1992, 72,7 12-7 18
The presence of the differences may be due to the material of the molybdenum powder existence difference.
Rare Metal Materials and Engineering ,2010,39 (6):451-454 [2]Wang D H, Yuan X B, Li Z K.
Rare Metal Materials and Engineering, 2007, 36 (: 562 -566
Journal of Applied Physics,1992, 72,7 12-7 18
Online since: October 2012
Authors: Xin Hua Ni, Xie Quan Liu, Cheng Chen, Wan Heng He
The material systems involved a variety of material, and such material has good mechanical properties at room and high temperature [1].
The toughing mechanism of this composite material isn’t clear.
Acknowledgments This work is supported by the National Natural Science Foundation of China under grant no. 10872216.
Journal of the European Ceramic Society Vol. 25(2005), p. 1215 [2] Zhao Z M, Zhang L, Bai H B, et al.
Key Engineering Materials, Vol. 280-283(2005), p. 1053 [3] L Zhao.
The toughing mechanism of this composite material isn’t clear.
Acknowledgments This work is supported by the National Natural Science Foundation of China under grant no. 10872216.
Journal of the European Ceramic Society Vol. 25(2005), p. 1215 [2] Zhao Z M, Zhang L, Bai H B, et al.
Key Engineering Materials, Vol. 280-283(2005), p. 1053 [3] L Zhao.
Online since: February 2013
Authors: De Yu Guo, Kun Shan Li
The systemic structure is divided into 4 parts: products structure design, material selection, environment performance design and resource performance design.
In the course of green design, full consideration should be given to the acquisition of raw materials, manufacturing, transportation and sales, as well as impact on environment from utilization, recycling and disposal.
Logistic system for multi life cycles of the machine tools and hydraulic systems Green design for machine tools and hydraulic system products green materials Green process in manufacturing green package Green disposal Figure 3.
[2] On Green Design and Environment Protection by Xue Fengying, Zhang Juntao, and Cao Lijie, published in Academic Journal of Hebei University of Science and Technology in October 1999
[3] Study on the Process of Material Consumption in Green Manufacturing by Yang Xiaoqiong, published in ”Mechanical Engineers” in April 1999
In the course of green design, full consideration should be given to the acquisition of raw materials, manufacturing, transportation and sales, as well as impact on environment from utilization, recycling and disposal.
Logistic system for multi life cycles of the machine tools and hydraulic systems Green design for machine tools and hydraulic system products green materials Green process in manufacturing green package Green disposal Figure 3.
[2] On Green Design and Environment Protection by Xue Fengying, Zhang Juntao, and Cao Lijie, published in Academic Journal of Hebei University of Science and Technology in October 1999
[3] Study on the Process of Material Consumption in Green Manufacturing by Yang Xiaoqiong, published in ”Mechanical Engineers” in April 1999
Online since: September 2013
Authors: Wei Huang, Zi Ming Chen, Yong Liu, Fu Jun Shang, Ji Hong Su, Xiao Yan Tian
The manufacture of Spherical WC Powder in Plasma
HUANG Wei1, CHEN Ziming1, LIU Yong1, SHANG Fujun1, Su Jihong1,
TIAN Xiaoyan2
1 Ningbo Branch of China Academyof Ordnance science, China
2 Bayannao’er Urban Planning and Design Institutes, China
Keywords: plasma, WC, spherical powder
Abstract.
Plasma technology is an ideal method for preparation high melting point powder material.
Results and Discussion 3.1 the hall flow-ability We can compare the hall flow-ability between the raw material and spherical powder.
Figure 1 SEM of treated tungsten powder 3.2 Oxygen contents In this experiment, the raw material is two type WC powder, which oxygen contents were respectively 0.063%, 0.12%.
Journal of Applied Physics,1992, 72,7 12-7 18
Plasma technology is an ideal method for preparation high melting point powder material.
Results and Discussion 3.1 the hall flow-ability We can compare the hall flow-ability between the raw material and spherical powder.
Figure 1 SEM of treated tungsten powder 3.2 Oxygen contents In this experiment, the raw material is two type WC powder, which oxygen contents were respectively 0.063%, 0.12%.
Journal of Applied Physics,1992, 72,7 12-7 18
Online since: May 2012
Authors: Jing Jing Zhao, Wei Xuan Fang, Ming Jia Ma, Yu Qian Guo
The variation of LREE and HREE of Skarn is large, indicating that REE occurs significantly different in the migration process and the extent of wall rock material exchange.
Journal of the Chinese Rare Earth Society, 2005, 23 (2):228-234 [8] Fang Weixuan, Jia Runxing.
Journal of the Chinese Rare Earth Society, 1999, 17 (4): 289 [14] Xu Cheng, Liu Congqiang, Qi Liang, et al.
Science in China (Series D), 2003, 46 (3): 246
Journal of Petrology, 1986. 27: 745 ~ 750
Journal of the Chinese Rare Earth Society, 2005, 23 (2):228-234 [8] Fang Weixuan, Jia Runxing.
Journal of the Chinese Rare Earth Society, 1999, 17 (4): 289 [14] Xu Cheng, Liu Congqiang, Qi Liang, et al.
Science in China (Series D), 2003, 46 (3): 246
Journal of Petrology, 1986. 27: 745 ~ 750