Search results

With the micro defects forming, extending and combining under the loads and weather actions the materials and the structures degrades, the decreasing of the strength, the stiffness, the toughness and the life span.
The damage is defined as the microstructure leading to the degradation of the mechanical properties in structures and materials.
Materials are summit to the normal rule
References [1] Li Jinyu, Cao Jianguo, Xu Wenyu: Journal of hydraulic engineering.
Vol. 1 (1999), p. 41 In Chinese [2] Shi Shisheng: China Civil Engineering Journal.

Acknowledgement This work was supported by National Natural Science Foundation of China (No. 51175401).
Lazarus: Journal of the Mechanics and Physics of solids Vol. 59 (2011), p. 121-144
Labuz: International Journal of Rock Mechanics & Mining Science Vol. 48 (2011), p. 666-673
Sachse: Materials Evaluation Vol. 39 (11) (1981), p. 1032-1036
Ohtsu: Journal of Acoustic Emission Vol. 1 (2) (1982), p. 103-112

Example The materials and geometric parameters used in the example are given as follows: =0.165mm,=25mm,=150mm,=150mm,=256000MPa,=0.034mm,=286000MPa,=0.16mm,=7.2MPa,=0.576N/mm,=190mm.
Acknowledgements The authors gratefully acknowledge the financial support provided by the Science and Technology Scheme of the Guangdong Province (2012A030200003) and the Natural Science Foundation of China (National Key Project No.11032005).
Qiao, International Journal of Solids and Structures, 46(2009), 2618-2628
Teng, Constructions and Building Materials, 28(2012), 584-591
[10] S.X.Liu, Advanced Material Research, 598(2012),425-431.

(2) Substitute the material properties to Eqs.1~3 and distinguish the yield and failure modes
Materials and Design, Vol. 31(2010), p. 357 [5] T.C.Rousakis, A.I.
Materials and Structures, Vol. 45(2012), p. 957 [6] Xiang Li, Xianglin Gu.
China Civil Engineering Journal, Vol. 45(2012), p. 23 (In Chinese)
Journal of Northeastern University: Natural Science, Vol. 33(2012), p. 284 (In Chinese) [9] R.Garcia, I.Hajirasouliha and K.Pilakoutas.

The material of the sleeve and axle is steel and that of the impeller is aluminum.
This is because the materials of the shaft sleeve and shaft are steel and the material of the impeller is aluminum.
Fang: International Journal of Mechanical Sciences Vol. 42 (2000), p. 1835-1850
Qin: Journal of Materials Processing Technology Vol. 145 (2004), p. 215-223
Dragoni: Journal of Strain Analysis Vol. 40 (2005), p. 177-181

Study on the effect of thermal design of plane mould on the mechanical properties of epoxy sheet molding compounds Jian Li1,a Zhi-xiong Huang2,b De-liang Jin2,c 1Department of Materials Engineering, Hubei Automotive Industries Institute, Shiyan, 442002； 2School of Materials Science and Engineering, Wuhan University of Technology, Wuhan, 430070 aemail:lijian_0711@qq.com; bemail: zhixiongh@whut.edu.cn; cemail: thkjdl@yahoo.com.cn Keywords：Epoxy sheet molding compound; plane mould; thermal design; flexural property Abstract.
Introduction Epoxy sheet molding compound (E-SMC) is a new kind of molding material of fiber-reinforced epoxy resin [1-2].
After the mold was closed, the sheet material would flow and fill in the whole mould at the compression pressure of 20MPa.
Acknowledgements The authors express their thanks to Natural Science Foundation of Hubei Province (2009CDA037) and school foundation of Hubei Automotive Industries Institute (BK201001) for providing financial support for this work.
Le Corre, et al.: International Journal of Plasticity, Vol. 19(2003), p. 625~646 [6] Duck-Ki Kim, Hyung-Yun Choi, Naksoo Kim: Journal of Materials Processing Technology, Vol. 49(1995), p. 333~344 [7] XIE H Q, CHEN H, FANG S Q: Acta Materiea Compositae Sinica Vol. 20(2003), p. 73~76 [8] XIE H Q, LIU W B, FANG S Q: Journal of Harbin Institute of Technology Vol. 35(2003), p. 249~252

Research on Human Resources Performance Appraisal Based on Data Envelopment Analysis with Scientific Materials Bo Zhang Feixian Branch Campus, Linyi University Feixian,Shandong, P.R.China E-mail: lysysx@126.com Keywords: DEA;AHP; Human resource management; Performance appraisal Abstract.
Acknowledgment This work was supported by Shandong Provincial Natural Science Foundation (No.
Y2008A27) and Science and Technology Planning Project (No.
Commercial Research, 1(2005),p.1-4 [2] X.S.Liu,C.R.Du,Y.W.Wang and Q.P.Man:Peformance appraisal of the human resource management in the construction project.Journal of Harbin Institute of Technology,3(2006),p.436-438 [3] D.Chang and J.Y.Wang:A new model to improve the subjectivity of AHP.
Value Engineering, 9(2004),p.32-34 [4] Z.H.Sheng,Q.Zhu and G.M.Wu:Theory, Method and Application of DEA (Science Press, Beijing 1996) [5] Z.B.Fang:Strategy and Strategic Performance Management(Economic Science Press,Beijing 2005) [6] D.Xu and D.Y.Guo:The human resources performance appraisal design of electric power enterprise.

., The influence of pressure during solidification of high pressure die cast aluminium telecommunications components, Journal of Materials Processing Technology, 180 (2006), 37-43
[3] John Campbell, Casting, Butterworth -Heinemann (Oxford : Elsevier Science, 2003), 205-231
Niu et al, Vacuum assisted high pressure die casting of aluminum, Journal of Materials Processing Technology, 105 (2000), 119-127
Moon, A feasibility study of the partial squeeze and vacuum die casting process, Journal of Materials Processing Technology, 105 (2000) 42-48
[6] Young-Chan Kim et al., Die Casting Mold Design of the Thin-walled Aluminum Case by Computational Solidification Simulation, Journal of Materials Science & Technology, 24 (2008), 383-388

Introduction The development of aerospace industries demands the use of lightweight materials such as thin panels.
Ghazali, Vibration characteristics of composite plate embedded with shape memory alloy at elevated temperature, Applied Mechanics and Materials 393 (2013) 655-660
Ghazali, The effects of bolted joints on dynamic response of structures, IOP Conference Series: Materials Science and Engineering 50 (2013) 012018
Elliott, Vibration control using an adaptive tuned vibration absorber with a variable curvature stiffness element, Smart Materials and Structures 14 (2005) 1055-1065
Dynamic analysis on off-road vechicle chassis using 3-d finite element model, Journal of Science and Technology 4 (2007) 1-16

The optimization consists of a materials temperature calculation model, an optimization objective, an ideal materials heating model and a furnace heating model.
It would cause a large waste of human and material resources, and reduce equipment life.
Feedback control for optimal process operation, Journal of process control[J], 2007, 17(3), 203-219
Journal of university of science and technology beijing[J], 2009, 31(7): 929-933