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Research on Stress and Strain Distribution during Multi-pass Conventional Spinning under Different Roller Motion Modes Jianhua Liu 1,2,a and He Yang 1,b 1 School of Materials Science and Engineering, Northwestern Polytechnical University, Xi'an 710072, China 2 School of Construction Machinery, Chang'an University, Xi'an 710064, China a liujianhua1007@163.com, byanghe@nwpu.edu.cn Keywords: Multi-pass conventional spinning, Roller motion modes, Stress and stress distribution Abstract.
Equivalent strain of profiling material during profiling spinning is larger.
Fratini: Journal of Materials Processing Technology, Vol.150 (2004 ), pp.2-9
Materials Processing Technology, Vol.91 (1999), pp.226-230
Xia: Journal of GuangDong Non Ferrous Metals, Vol.8 (1998) No.2, pp.111-118.

Journal of Aerospace Power, 2016,1
Materials & Design, 2018, 139:457-466
Materials and Design, 2014, 56(4): 862-871
Materials Science and EngineeringA, 2000, A285(1): 62-68
Materials Today: Proceedings, 2018, 5: 12403-12408.

For comparison, the joints of the support materials themselves and the joints of the resonator materials themselves were also made in a similar manner and sintered at the same temperature for the same period of time.
Both stresses were able to initiate microcracks if they were above the intrinsic strengths of the ceramic materials.
Therefore, accurate measurements of thermal expansion coefficients of the materials involved in order to optimize the composition and the properties of the bonding layer material or application of a graded, multilayered bonding materials is proposed to solve the microcraking problem and constitute a current work in progress in our laboratory.
Acknowledgments This research was supported by grants of Guangdong Key Laboratory of Meta-RF Microwave Radio Frequency, Shenzhen Key Laboratory of Ultrahigh Refractive Structural Materials, Guangdong Science and Technology Plan (No. 2011A010801009), and National High Tech (863) Projects (No. 2012AA030401).
Li: Materials Letters Vol. 54[1] (2002), p. 25.

Application of new materials is one of the principal means of lightweight automobile.
Magnox with high strength and stiffness, good casting performance, collision resistance, damping, shock-absorbing performance, recycling, and other characteristics, is ideal for automotive lightweighting materials.
Analysis comparison is done for the original front sub frame between steel materials and JDM2 magnesium.
The strength analysis was independently made for the front sub frame with steel materials and JDM2 magnesium.
Journal of Tongji University, 2006, 1:1675-1678

Ta2O5 is used in the production of modern industrial materials such as cell phones’ capacitors [2].
Materials and Methods 2.1.
Materials The samples were collected from Abu Dabbab area which is located 20 km North of Mersa Alam city at latitude 25º20' 27'' N and longitude 34º 32' 30'' E.
Mutelet, Use of ionic liquids for the treatment of biomass materials and biofuel production, Carbohydrate, Prof.
El-Menshawy, Recovery of albite and mica from Egyptian Abu Dabbab ores using gravity and magnetic separation techniques, Australian Journal of Basic and Applied Sciences, 11 (2017) 115-123

The influence is mainly embodied in the characteristics of material itself.
Research[4] shows that the peak strain of uniaxial compressive stress-strain curve increases, the limit strain decreases and the material brittleness nature becomes more and more obvious with the increase of the concrete strength.
References [1] Zhi-wei Zhang and Zi-xiong Guo: Journal of Xi’an University of Architecture & Technology, Vol. 38(2006), p.528-532.
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It can be seen that some short side materials of the sheet is flow into the die in the forming process, and it also confirms the coexistence of forming nature of drawing and bulging.
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Analysis of Quantum Dot Vertical Cavity Semiconductor Optical Amplifier with Saturable Absorber Omar Qasaimeh Electrical Engineering Department, Jordan University of Science and Technology Irbid 22110 Jordan qasaimeh@just.edu.jo Keywords: Quantum dot, vertical cavity, optical amplifier, saturable absorber Abstract.
The inhomogeneous line broadening is 30meV, the linewidth enhancement factor is =1.5 and the material loss for the VCSOA is equal to 10cm-1.
Bowers, MEMS-Tunable Vertical-Cavity SOAs, IEEE Journal of Quantum Electronics, 41, 390 (2005) [3] O.
Martin-Pereda, Modeling Reflective Bistability in Vertical-Cavity Semiconductor Optical Amplifiers, IEEE Journal of Quantum Electronics, 41, 376 (2005) [8] E.S.
Coldren, Vertical Cavity Semiconductor Optical Amplifiers: Comparison of Fabry–Pérot and Rate Equation Approaches, IEEE Journal of Quantum Electronics, 38, 279 (2002)

Smith, Construction and Building Materials, 2003. 17(6-7): p. 447-462
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Journal of Composites for Construction, 2008. 12(3): p. 284-299
[4] Leung CKY, Ng M.Y.M., Journal of composite for construction, 2006. 10(2): p. 125-138
Journal of Zhejiang University Science A, 2006. 7(3): p. 436-444