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Longitudinal strain and the hoop strain of column limbs, the Poisson ratio of combination of materials have been obtained.
At the later loading stage, the Poisson ratio of combination of materials begins increasing in a straight line until destroyed.
The Poisson ratio of combination of materials keeps 0.2 to 0.35 during the whole loading process, illustrating that the Confinement Effect is tiny in the whole test process.
Journal of Structural Division, ASCE, 1983, 109(10):2375-2386
ACI Structural Journal, 1967, 64(7):404-413

Journal of Hazardous Materials. 180 (2010) 217-224
Journal of Hazardous Materials B. 108(2004) 103-109
Journal of Materials Processing Technology. 190 (2007) 217-222
Materials Letters. 59 (2005) 395-398
Materials Letters. 56 (2002) 610-613

Raw materials were mixed and milled with zirconia balls for 24 h.
Journal of materials science. 27 (1992) 5325-5329
Journal of materials science. 20 (1985) 3487-3500
In Materials Science Forum. 846 (2016) pp. 115-125
Materials Research. 13 (2010) 29-34

Poprawe, Laser additive manufacturing of metallic components: materials, processes and mechanisms, International Materials Reviews, 57 (2012),133-164
Raymont, Evaluation of lightweight AlSi10Mg periodic cellular lattice structures fabricated via direct metal laser sintering, Journal of Materials Processing Technology, 214 (2014), 856-864
Yedla, Large-Scale Molecular Dynamics Simulation Studies on Deformation of Ni Nanowires: Surface Profile, Defects and Stacking Fault Width Analysis, Journal of Materials Engineering and Performance, 28 (2019),63–78
Materials Science and Engineering: A, 809 (2021), 140948
Computational Materials Science and Surface Engineering 7 (2017), 18-25

Geetha et al.: Progress in Materials Science Vol. 54 (3) (2009), p. 397
Li: Materials and design Vol. 56 (2014), p. 629
:Materials Science And Engineering A Vol. 243 (1-2) (1998), p.244
Standard test method for microindentation hardness of materials.
Nunes, Materials Research.

The flexibility and cool cutting characteristics of the abraslive water jet(AWJ) make it an important tool for cutting applications of new materials such as composites and sandwiched materials that are difficult to machine with traditional machining processes[4].
Normally, the lower the materials intensity, the bigger the brittleness ,the higher speed we will need.
So when cutting composite materials with AWJ, we should use low speed under small pressure.
Deam: Experimental Thermal and Fluid Science,Vol. 30(2006)，pp337-343
Palleda: Journal of Materials Processing Technology, Vo.189(2007), pp292-295.

This can be explained as that the increase of electrolytic ion concentration reduces the repellant intermolecular and expand extent of molecular [12], which therefore, affect the seize effect of SAP materials to water and fertilizer.
The aim is to selected prior SAP materials, to raise nitrate nitrogen use efficiency, and to prevent non- point pollution and groundwater nitrogen pollution.
Materials and Methods Experimental Materials.
Qu, “Effects of Water Retaining Agent on Ammonia Volatilization and Nutrient Leaching Loss from N, P and K Fertilizers,” Journal of Agro-Environment Science, vol. 26, pp. 1296-1301, April 2007
Zhu, “Prediction Model of Groundwater Pollution by Nitrogen,” Environmental Science, vol. 12, pp. 8-12, June 1991

In this paper, Mohr-Coulomb yield condition is transformed strain expressed to stress expressed.Based on this, analysis the effects that geotechnical material parameters internal friction angle φ,cohesion c and Poisson's ratioνto  Mohr- Coulomb yield condition and the development of soil plastic zone.In addition, using the  strength reduction FEM simulating the change of  plastic zone distribution caused by change of the geotechnical materials parameters .The results show that the internal friction angle φ, cohesion c are reducted, the plastic zone expand;Increasing the Poisson’s ratio ν, narrowing the slope’s plastic zone;Plastic zone’s different distribution is caused by different material parameters affect  the yield surface. 
The yield surface of Mohr- Coulomb yield condition is a cone surface of an irregular hexagon section,because the  geotechnical  materials in the compressed states and extended state have different strain Rhodes angle θε.
With yield surface expand, the  degree of difficulty of geotechnical materials reach  yield condition increases,then the plastic zone’s development will decrease.
For the slope with different characters of soil , the distribution of plastic zone development must be different.This research has guiding significance for practical engineering applications Acknowledgements This work was financially supported by Natural Science Foundation (51009054), The Ministry ofEducation, Science and Technology Research Projects（109077） and The Natural Science Foundationof Jiangsu Province (BE2010513) Reference： [1]LIAN Zhenying,HAN Guocheng,KONG Xianjing.Stability analysis of excavation slope by Strength reduction FEM[J].
Chinese.Journal of Geotechnical Engineering, 2001,23(4):407-411(in Chinese) [2] Zienkiewicz O C, Humpheson C, Lewis R W.

Based on the application of elliptical vibration cutting method to precision machining of hard and brittle materials and material softening technology through laser heating, a novel composite cutting technique, laser heating and ultrasonic elliptical vibration assisted cutting, is applied to process sintered tungsten carbide.
Ultrasonic elliptical vibration cutting (UEVC) method has been proved to be successfully applied to processing of such intractable materials [2] and have achieved much improved cutting performances in all aspects superior to common cutting (CC) and one-dimensional ultrasonic vibration cutting(1D UVC) methods due to intermittency and friction reversal actions in each cycle of vibration [3-5].
Acknowledgment The research was supported by National Natural Science Foundation of China (No. 51075127), Program for Science & Technology Innovation Talents in Universities of Henan Province (No. 2010HASTIT031) and Henan Provincial Key Discipline.
Shamoto: Proceedings of the International Symposium on Micro-NanoMechatronics and Human Science, Nagoya, Japan, 2004, p. 133 [4] N.
Rahman: Journal of Materials Processing Technology Vol. 209(2009), p. 4459 [6] Zhang X Q, A Senthil Kumar: Journal of Manufacturing Processes Vol. 14 (2012), p. 378 [7] Information on http://www.hardmaterials.sandvik.com.

Study on Al-Li3AlH6-CaO Composite for Hydrogen Production Performance Xiang-fei Zhang, Fen Xua, Li-xian Sunb, Fang Yu and Chong Zhao Guangxi Key Laboratory of Information Laboratory, Guangxi Collaborative Innovation Center of Structure and Property for New Energy Materials, Faculty of Material Science & Engineering, Guilin University of Electrical Technology, Guilin, 541004, China axufen@guet.edu.cn, bsunlx@guet.edu.cn Keywords: Al-Li3AlH6-CaO composite， Hydrogen production， Corrosion resistance， Mechanical ball milling.
It is not difficult to discover that the Al-based materials mostly have good activity and can recat with water drasticly based on the above studies.
Moreover, the materials mentioned above can hardly put into practical applications due to the instability in the air.
These two methods have the same materials and hydrogen storage process.
Wang: Energy & Environmental Science, Vol.4 (2011) No.6, p.2206