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Generally, with a higher bulk density of the material, its shielding ability also increases.
Volume heat capacity is an inverted property of the thermal diffusivity of the material.
Thermal technical characteristics are influenced by the bulk density of the material.
Materials Today Proceedings. 2019, 3(15), 536-545.
Journal of Thermal Analysis and Calorimetry. 2020, 142, 255-266.

Influence of Wiper Height on 7A55 Slabs Lijuan Wang1, 2, a, Hao Zhong3,b, Xiangjie Wang1, c * and Jianzhong Cui1,d 1Key Lab of Electromagnetic Processing of Materials, Ministry of Education, Northeastern University, Shenyang 110819, China 2Liaoning Zhongwang Group CO., LTD, Liaoyang 111003 3Suzhou Nonferrous Metal Research Institute, LTD, Liaoyang 11100 awanglijuan@zhongwang.com, bZhong_h@sinr.cn, cWangxj@epm.neu.edu.cn, djzcui@epm.neu.edu.cn Keywords: 7xxx series alloys, slab, crack, microstructure.
Introduction Thanks to the high strength and excellent comprehensive properties, 7A55 plate products, which has higher ratios in Zn:Mg and Cu:Mg can satisfy the comprehensive requirements on weight reduction and speed increase, is the preferred material serve for the top wing structure of air flight to stand tension and stress [1-3].
Progress in Materials Science. 53 (2008) 421–480
Journal of Materials Processing Technology. 214 (2014) 1372–1378.

Experimental Method In this research, the aircraft grease 7014 (product of Chongqing Ichinotsubo) and Nano-materials SiO2 and TiO2 (product of Tianyi Ltd, Changzhin,) were used.
References [1] Libo Wang, Ming Zhang, Xiaobo Wang and Weimin Liu: Materials Research Bulletin: Vol. 43 (2008), p.2220 [2] HuoY Q, Yan Y T and Zhai Y C: Materials Journal: Vol.18-4(2004), p.102 [3] M.
Lubrication Science: Vol.8-4(1996), p.387 [5] Wang L B, Feng D P and Liu W M.
Tribology: Vol.25-2(2005), p.107 [6] Hosoe: Material Tecnology, Vol. 18-3(2000), p. 78 [7] Zhu T B: Grease Technology Encyclopedia.

Material Constitutive Models Concrete Model.
Table 1 Material parameters of reinforced concrete ρ0 [kg/m3] E [Pa] G [Pa] [Pa] T [Pa] EFmin 2440 35.7E9 14.86E9 105E6 10E6 0.01 Shipbuilding Steel Model.
Table 2 Material parameters of shipbuilding steel ρ [kg/m3] E [Pa] ν Yield stress [MPa] Failure strain 7800 2.06E11 0.3 235 0.15 Soil Model.
Acknowledgements This work was supported by National Natural Science Foundation of China No. 50678116, National Key Technology R&D Program No. 2006BAJ13B02, and Tianjin Municipal Major Project of Application Foundation and Frontal Technology Research No. 08JCZDJC19500.
Zheng and H.GAO: Journal of Architecture and Civil Engineering, In Chinese, Vol.24 (2007), p. 1-5 [7] American Association of State Highway and Transportation Official: Guide Specifications and Commentary for Vessel Collision Design of Highway Bridges, Washington D.C, (1991)

Influence of stress concentration on fatigue property of welded joints of 5083 aluminum alloy Jun Yang a, Bo Li b, Qiang Jia c, Yuanxing Li d, Mingyue Zhang e, Hui Chen f, * School of Materials Science and Engineering, Southwest Jiaotong University, Chengdu, China a944214547@qq.com, bsanpolincoln@163.com,cjiaqiang0510@qq.com,d453117177@qq.com, e906471735@qq.com, f, *xnrpt@163.com Keywords: 5083 aluminum alloy, welded joint, fatigue, stress concentration Abstract.
Experimental materials and methods Experimental materials.
The QSN750 spark direct reading spectrometer for detection of 5083 aluminum alloy sheet and welding wire ER5356, material composition as shown in table 1, table 2.
Feng: The Chinese Journal of nonferrous metals, vol. 14 (2004) no. 1, p. 1895-1900

Z X Y Fig.1 Size of double bottom structure Governing equations In the simulation there are four materials such as air, water, explosive and steel, they equations of state and material model are showed below.
D and p are material constants by experiment.
The material of structures is steel.
Ship Science and Technology. 29(1) (2007) 91-94
Journal of Harbin Engineering University. 29(4) 2008. 326-331

The material for development of the sector chosen was austenitic stainless steel type 304L even though the material of construction of the inner vessel in the reactor is SS316LN, because of its tensile & forming behaviour being similar to that of SS316 LN.
The modelling details, friction factor, surface to surface contact details, size of mesh, material properties were used same as given in the published work carried out by Utpal Bohra et al. [7].
Material is assumed an isotropic and its properties are taken from RCC-MR 2012, Appendix A3.4S [9].
[4] www.autoform.com [5] https://nationalvetcontent.edu.au [6] Nader Asnafi, “ Springback and fracture in v-die air bending of thick stainless steel sheets“ , Materials and Design, 21 (2000), 217-236 [7] Utpal Borah, Shreedhar Venugopal, R.
Venugopal, Baldev Raj, “Estimation of springback in double-curvature forming of plates: Experimental evaluation and process modelling” International Journal of Mechanical Sciences 50 (2008) 704–718

Addemirc Istanbul Technical University, Department of Metallurgical and Materials Engineering, 34469, Maslak, Istanbul, Turkey a ertugb@itu.edu.tr, bboyraz@itu.edu.tr, caddemir@itu.edu.tr Keywords: Hexagonal boron nitride, hot-pressing, fracture toughness, fracture characteristics Abstract.
The strength tests were carried out on Instron universal materials testing machine.
Rangel: Brazilian Journal of Physics Vol. 32 (2002), p. 372-375 [4] M.
Kübler: Ceramic Engineering and Science Proceedings Vol. 18 (1997), p. 155-162 [7] I.
Liu: Diamond and Related Materials Vol. 9 (2000), p. 1734-1738

The resistance of concrete with cement replaced by zeolite to crack propagation was studied with respect to the life cycle of these materials [3].
Material, test specimens, and fracture tests Test specimens with nominal dimensions of 40 × 40 × 160 mm of fine-grained concrete, whose composition was based on the standard EN 196-1 Determination of cement strengths, were manufactured to determine the values of mechanical fracture parameters.
Table 5 also lists the relative values of the parameters compared to the reference material, with 100 % taken as the value of the parameter obtained for Ref.
Acknowledgement This outcome has been achieved with the financial support of the Czech Science Foundation, Project No.
Advanced Materials Research Journal, (2014).

Development of an Equipment Failure Identification Expert System with Multiple Reasoning Approaches Yeong-Ho Ho1,a, Huei-Sen Wang2,b, Hei-Chia Wang3,c 1Department of Leisure and Information Management, Taiwan Shoufu University 2Department of Materials Science and Engineering, I-Shou University 3Institute of Information Management, National Cheng Kung University ahyh@tsu.edu.tw, bhuei@mail.isu.edu.tw, chcwang@mail.ncku.edu.tw Keywords: Equipment Failure Analysis Expert System, RBR, CBR, Knowledge acquisition, inference Abstract.
This reminder of this paper is organized from the viewpoint of knowledge engineer (materials scientists with essential AI knowledge) and described as two sections.
Table 2 List of factors and some examples of attribute value used for failure identification. 1st level factors 2nd level factors Attribute values Totals Materials Ferrous Un-ferrous e.g.
Thermal stress, Repeated stress 4 Mechanical properties Analysis Strength Hardness Ductility Toughness Quantitative Express Figure2 RBR knowledge acquisition interface, here demonstrated how a rule is to be established from this For the CBR system, the knowledge is mainly acquired with document processing approach from various resources such as CSC technical reports, handbook (e.g. corrosion atlas), journal or failure cases from the other companies.
Steel Handbook，Material Research Society Taiwan (Taiwan，Hsinchu, 1998) p. 603.