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Introduction Cellular materials can dissipate a large amount of kinetic energy at nearly constant stress during large deformation.
They can serve as effective and efficient energy absorbers to mitigate impact/blast loading if the base materials are properly selected and morphology of microstructures is well designed.
It can be seen that SKYDEX® has a similar performance with egg-box and woven textile materials, and outperforms aluminum foams.
Wang, Plastic deformation, failure and energy absorption of sandwich structures with metallic cellular cores, International Journal of Protective Structures, 1 (2010), 507-541
Evans, The out-of-plane compressive behavior of metallic honeycombs, Materials Science & Engineering A, 380 (2004), 272-280.

The results also show that the longer heat treatment the materials, the more irregular of the materials’ form.
Avoid materials became crushed and lose effectiveness for the excessive expansion.
“A numerical stress based approach for predicting failure in NBG-18 nuclear graphite components with verification problems,” Journal of Nuclear Materials, Amsterdam, Volume 436, pp. 175–184, May 2013
“Oxidation rate of nuclear-grade graphite NBG-18 in the kinetic regime for VHTR air ingress accident scenarios,” Journal of Nuclear Materials, Amsterdam, Volume 438, pp. 77–87, July 2013
Microstructural evolution of nuclear grade graphite induced by ion irradiation at high temperature environment,” Journal of Nuclear Materials, Amsterdam, Volume 434, pp. 17–23, March 2013.

So, study on green material is very important.
But as the emergence of environmental material, the raw material of degradable stuff focuses on natural polymer, such as starch, cellulose, protein and chitosan.
The test equipment is type ZQS2-23 horizontal type Beater, produced by Shanxi University of Science & Technology Mchinery Works.
The text equipment is ZQJ1-B-Ⅱpaper taker, whicih is aslo produced by Shanxi University of Science & Technology Mchinery Works.
References [1] Chao Ma: submitted to jouanal of Chemical Industy(2006), in Chinese [2] Wei Sheng, Jun Luo:submitted to Journal of Industrial Fabric(2009), in Chinese [3] XianFa Li: submitted to Journal of Plastic(2004), in Chinese [4] Shiyuan Lu, Desheng Lv and Zuxing Wang: submitted to Jounal of Industrial Fabric(2002), in Chinese [5] Yiping Ji: submitted to Journal of China Fiber Inspection(2004), in Chinese [6] Linhe Zhang: submitted to Journal of Packing Engineering(2010), in Chinese [7] Chen Huang, Lina Fang and Xiaojian Han: submitted to Jounal of Journal of Textile Research(2007), in Chinese

Modelling of shape anvils in free hot forging of long products, Journal of Materials Processing Technology 157–158 (2004) 131–137
Journal of Materials Processing Technology 177 (2006) 238–242
Estimation of bonding efficiency by finite-element analysis, Journal of Materials Processing Technology 72 (1997) 32–41
Moon, Optimization of open die forging of round shapes using FEM analysis, Journal of Materials Processing Technology 172 (2006) 88–95
Mirzadeh, Crystal Plasticity Analysis of Texture Evolution of Pure Aluminum During Processing by a New Severe Plastic Deformation Technique, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 47 Issue 2 (2016) 941–948

After removal of infected enamel and/or dentin, synthetic materials such as dental resin or metals are filled in the cavity [2].
The mechanical properties of these materials are not similar to that of natural tooth and these materials are incapable of replacing the biological Function of the lost tissue [3].
Journal of Materials Chemistry B 1.37 (2013): 4764-4772
Journal of biomedical materials research Part A 93.1 (2010): 247-257
Journal of Biomaterials Science, Polymer Edition 16.12 (2005): 1537-1555.

Journal of Materials Processing Technology, 1995, 48(1-4): 105-111
Materials Science and Engineering A, 2004, 364(1-2): 207-215
Journal of Materials Processing Technology, 1996, 59(1-2): 68-78
Journal of Materials Processing Technology, 2005, 162-163: 524-529
Journal of Materials Processing Technology, 2001, 115(1): 70-75

This research is supported by National Natural Science Foundation of China (Grant NO.2012Z0606).
Journal of University of South China (Science and Technology), 2007, 21(2):75-78
Journal of Steel Pipe. 2011, 12 (1):19 [6] Zhang Qing, et al.
Chinese Journal of Corrosion and Protection, 2003, 123, (11): 22
Journal of Oil, 2006, (2) : 141.

This method is in the trend of phasing out because of wasting raw materials and consuming so much in subsequent machining, although its forging technology is simple.
Bai: Journal of agricultural machinery, Vol. 26 (1995) No.1, pp. 97-101.
Wang: Beijing university of science and technology journal, Vol. 23 (2001) No.2, pp:155-157
Xing: Journal of Mechanical Engineering, Vol. 45 (2009) No.1, pp.131-134 (In Chinese) [8] XueDao.Shu，ChuanMing.Li，and Z.H .Hu: Technology of University of Science and Beijing，Vol. 29 (2007)No.2, pp.159-161 [9] X.D.
Hu: Journal of Mechanical Engineering, (2010) No.3.

According to ASTM C 618 [2] pozzolanic materials can be described as materials containing siliceous and aluminous material by composition.
Materials and Methods Ordinary Portland cement (OPC) supplied by Cement Industries of Malaysia, Berhad was used as the main binder material.
Materials & Design, 59, 532-539
Australian Journal of Basic & Applied Sciences, 6
Journal of Materials in Civil Engineering, 16, 623-628

FATIGUE AND FRACTURE CHARACTER OF METAL RUBBER MATERIAL Yuming LI1,a, Hongbai BAI1,b JianchunYANG2,c 1University of Ordnance Engineering, China 2University of Science and Technology Beijing, China aliyuming1976@sina.com, bbhbk11@sina.com, cyjc675266@163.com Keywords: Metal rubber, Damaging Factor, Fatigue Test, Fracture Face, Electronic Scanning Microscope Abstract.
Introduction With the development of science and technology in space, the spacecrafts usually work in the worse circumstance such as high or low temperature, so they need to improve their components’ performance of vibration and sealing.
A main reason may be that it is a kind of particular materials, the testing measures and theories of metal material can’t be used here.
The fracture and fatigue character of MR is different from the metal material.
Rahouadj: Nanostructural materials formation by mechanical alloying: morphologic analysis based on transmission and scanning electron microscopic observations, Materials Characterization Vol. 36(1996), p. 185