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Online since: August 2013
Authors: Jun Hong Liu, Qi Jin, Shi Meng Xu, Run Bo Ma, Jian Hua Du
Introduction The rubber composite materials have broad field of application and development prospect, including the lower price of filling type of thermal rubber, which are processed and formed easily, and that are widely used in aerospace, aviation, electronics, electrical appliances, and so on[1-3].
But sometimes, the single-component material filling is too relatively simple on the material properties, which is not easy to change and overcome the gaps and weaknesses in the application.
Otherwise, in this paper, the detail analysis of the orthogonal designs combined with the tests are carefully and fully considered, especially in the valued details, thus, the blindness and lose of the testing might largely be decreased, meanwhile, the usability and expansion of the testing results might largely be enhanced, which it is an important issue in practicality of the orthogonal experiment design for the composite rubber materials.
As it has been funding supported by project (51001117), NSF of Beijing (3132024, 3120001), Distinguished Young Scholars of NSFC (51125023)and innovation fund of Academy of Armored Force Engineering, we are deeply grateful to the National Nature Science Foundation of China and Academy of Armored Force Engineering.
[3] Zhou Wenying, Qi Shuhua,Tu Chunchao,et al.Effect of the particle size of Al2O3 on the properties of filled heat~conductive silicone rubber[J].Journal of Applied Polymer Science,2007, 104(2):1312~1318
Online since: September 2017
Authors: Zdeněk Chlup, Michal Kotoul, Zdeněk Majer, Oldřich Ševeček, Luca Bertolla
Fracture-Mechanics Behaviour of Ceramic Foam with Macroscopic Stress Concentrator upon the Tensile Test Oldřich Ševeček1,a, Zdeněk Majer1,b, Luca Bertolla1,2,c, Zdeněk Chlup2,d and Michal Kotoul1,e 1 Brno University of Technology, Institute of Solid Mechanics, Mechatronics and Biomechanics, Technická 2, 616 69 Brno, Czech Republic 2 Institute of Physics of Materials, Academy of Sciences Czech Republic, Žižkova 22, Brno, Czech Republic asevecek@fme.vutbr.cz, bmajer@fme.vutbr.cz, cbertolla@ipm.cz, dchlup@ipm.cz, ekotoul@fme.vutbr.cz Keywords: Ceramic foam, fracture, stress concentrator, FEM, Voronoi tessellation, tensile test.
Introduction The growing exploitation of ceramic foams with open cell porosity in a great number of industrial branches and/or as bone replacement materials, has instigated experimental and theoretical studies of their mechanical behaviour.
Young’s modulus of the ceramic material was considered to be Ebulk=90GPa and Poisson´s ratio nbulk=0.25 (corresponding to source material of “VUCOPOR®A” - Al2O3 based ceramic foam).
A financial support of the Czech Science foundation under the project no. 17-08447Y is gratefully acknowledged.
Kraynik: Journal of Applied Mechanics Vol. 64 (1997), p. 787-794 [2] H.X.
Online since: September 2013
Authors: Sheng Ai Cui, Tao Chen, Zhi Hua Zhou, Yu Fan
The compound ratio design of shotcrete and simulation experiment Information of the constituent materials of the shotcrete: cement is the type of P.O42.5R, the sand is mechanism sand, Mx=2.7, the content of micro fines is 12%, the size of gravel ranges from 5mm to 15mm continuously, TK-SP polycarboxylic acid type water-reducer, BASF alkali-free liquid accelerator.
Figure 1 Different conservation of the environment, the compressive strength of shotcrete contrast The improvement of compressive strength in hot-humid environment Regarding 70℃damp-heat environment as representative conditions, studying how does admixture or fiber material effect shotcrete compressive strength.
Acknowledgements We would like to acknowledge the support of National Natural Science Foundation (51008253) and the Fundamental Research Funds for the Central Universities (SWJTU12CX072) and Student Research Training Program of Southwest Jiaotong University(120113) during the research.
[2] ACI Committee 506, Specification for materials, proportioning and application of Shotcrete (ACI506-77).
[4] Xie Youjun, Liu Baoju, Liu Wei: Journal of Railway Science and Engineering Vol.1 (2)(2004),p.46 (In Chinese)
Online since: February 2009
Authors: Hiroaki Watanabe, Kunihiko Fujiwara, Kenji Doi, Akira Okada, Yoshiyuki Uno
Experimental procedure Three kinds of stainless steel widely used for orthopedic surgical tools and jigs were used as workpiece materials.
Little heat energy penetrates into the material, and the material removal by melting and evaporation occurs adjacent to the surface [6].
In the EB polishing of some materials such as metal mold steel and titanium alloy, a remarkable improvement in corrosion resistance has been found [6, 7].
Acknowledgments This study was financially supported by the Program of Collaborative Development of Innovative Seeds (No. 6010014) in Japan Science and Technology Agency, and also partly supported by the Grant-in-Aid for Scientific Research of Japan Society for the Promotion of Science (No.20360069).
[7] A.Okada, Y.Uno, K.Uemura, P.Raharjo and J.A.McGeough: IMechE Journal of Engineering Manufacture, Vol.221 (2007) p.173.
Online since: May 2012
Authors: Xiu Jin Li, Jin Zheng, Bo Chen, Han Ming Pan
Zuk [1] investigated the thermal behavior of several concrete bridges and found that the temperature distribution was affected by air temperature, wind, humidity, intensity of solar radiation and material type.
Heat transfer analysis As far as a concrete bridge subjected to thermal radiation is concerned, the temperature field T of a concrete component at any time t can be expressed by the well-known Fourier equation [6-7]: (1) in which: is the temperature of structural component;is time instant; ,andare the thermal conductivity of material in x, y and z direction respectively; is the density of material;is the heat of material ;is the time rate of heat generated per unit volume (eg. the heat of hydration).
Acknowledgements The writers are grateful for the financial support from the National Natural Science Foundation of China (Grant 51178366), the Fok Ying-Tong Education Foundation (Grant 131072) and the Construction Technological Project of the Hubei Province (EJianWen[2011]No.154-Project.115, EJianWen[2011]No.154-Project.118).
Stone : Journal of Mechanical Engineering Science, 20(1978), p. 93-100
Mirambell : ACI Materials J., 89 (1992), p. 139-145.
Online since: August 2012
Authors: Jian Bo Cao, Jia Wei Tang, Xi Lin Li, Jiao Wu, Xue Jin
Through the analysis and comparison, finally choosing a hand implement two integrated control system, not only save material, beautiful, and bring convenience to the customers, need to use a hand of the shift to control the upper chest respectively and store content ark of the move.
Acknowledgement The work was Supported by the Key Project of Chinese Ministry of Education (No. 211071), the Science and Technology Project of Jinhua City (No. 2010-1-101), and the Emerging Artists Talents Scheme Fund of Zhejiang Province.
Zhang: Building Materials and Decoration Intelligence, (2011) No. 9, pp. 176-177
Wang: Journal of Zhejiang Normal University (Social Sciences), (2011) No. 6, pp. 101-106
Zhang: Building Materials and Decoration Intelligence, (2011) No. 4, pp.138
Online since: August 2015
Authors: Bronislava Moravcová, Petr Pőssl, Petr Misák, Michal Blažek
The pore structure of concrete is a very important material property influencing the durability of concrete.
Acknowledgement This paper was elaborated with the financial support of the Czech Science Foundation project GA13-18870S and European Union's "Operational Programme Research and Development for Innovations", No.
CZ.1.05/2.1.00/03.0097, as an activity of the regional Centre AdMaS "Advanced Materials, Structures and Technologies".
Russian Journal of Nondestructive Testing, 46 (2010), 226-233
Online since: May 2014
Authors: Paul Steinmann, Philipp Landkammer
The inverse mechanical formulation was first proposed by Govindjee and Mihalic [4] for Neo-Hookean type materials.
Determination of the inverse deformation map φ(x) = ϕ−1(x) results in the material coordinates X of the material configuration B0, which is proposed in [6].
Engrg., 136, 47-57 (1996) [5] Germain S., Scherer M., Steinmann P., On inverse form finding for anisotropic hyperelasticity in the logarithmic strain space, International Journal of structural changes in solids, 2, Number 2, 1-16 (2011) [6] Germain S., Steinmann P., On inverse form finding for anisotropic elastoplastic materials, AIP Conference Proceedings, 1353, 1169-1174 (2011) [7] Germain S., Landkammer P., Steinmann P., On a recursive formulation for solving inverse form finding problems in isotropic elastoplasticity, Advanced Modeling in Simulation and Engineering Sciences, submitted (2013) [8] Landkammer P., Germain S., Steinmann P., On inverse form finding for orthotropic plasticity, Computer Assisted Methods in Engineering Science, accepted (2014) [9] Schmaltz S., Landkammer P., Beyer F., Kumor D., Rademacher A., Blum H., Steinmann P., Willner K., Vorstellung eines Simulationsbenchmarks für die Blechmassivumformung, Tagungsband zum 2.
Modular Kinematic Formulation and Implementation based on Incremental Minimization Principles for Standard Materials, Comput.
Eng., 61, 2067-2113 (2004) [13] Germain S., On Inverse Form Finding for Anisotropic Materials in the Logarithmic Strain Space, Dissertation, University of Erlangen (2013)
Online since: September 2014
Authors: Kun Sheng Zhang, Hua Yang, Li Zhen Ma, Yu Jing Tian, Yao Hua Guo, Ying Chun Zhu
Materials and Methods Reagents and Fish patty ingredient All chemicals and reagents used in this study were of AnalaR grade and purchased from Sigma-Aldrich or Sinopharm Chemical Reagent Co.
Meat Science, 1982,7, 29–36 [6] Bourne, M.
Journal of Food Protection, 2004, 67(8): 1709-1718
Journal of Food Engineering, 2007, 82 (2): 128-134
Meat Science, 2010, 85: 506-514
Online since: June 2007
Authors: Jian Li Song, Hui Ping Qi, Yong Tang Li, Jian Hua Fu, Kwun Lon Ting
Taiyuan University of Science & Technology, Taiyuan, 030024, China) (2.
When the upper cutting die contacts with the materials, the materials in the contact zone begin to deform elastically.
Then the crack growth results in the fracture of the materials.
The materials of the billets were common carbon steel 45 #.
Chinese Journal of Mechanical Engineering.