Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: September 2007
Authors: Xiao Guang Yang, Rui Li, Hong Yu Qi
Yttria stabilized zirconia (YSZ) has been a
popular TBC material.
For interfacial indentation test, direct transposition of these relations cannot be done even at the critical point because indentation is performed onto different materials.
The hardness is the ability of the local property of materials.
References [1] Qi Hongyu: Chinese Journal of Aeronautics.
Vol.119(1997), p. 506 [5] He M.Y, Hutchinson J.W: Materials Science and Engineering.
For interfacial indentation test, direct transposition of these relations cannot be done even at the critical point because indentation is performed onto different materials.
The hardness is the ability of the local property of materials.
References [1] Qi Hongyu: Chinese Journal of Aeronautics.
Vol.119(1997), p. 506 [5] He M.Y, Hutchinson J.W: Materials Science and Engineering.
Online since: December 2010
Authors: Khair Al Deen Bsisu, Hunaiti Yaser, Raja Ynis, Omar Malkawi
Light gauge galvanized steel plates are introduced as a material that combines the high strength to weight ratio and corrosion resistance due to the galvanization on one hand and has a more ductile behavior on the other hand.
Materials: Concrete: concrete used for the beam specimens was normal concrete, concrete strength of tested cylinders had a strength fc’= 25 MPa.
The materials used for strengthening beam specimens: · Light gauge galvanized steel plates
Properties of material used for strengthening beam specimens Material E-modulus [GPa] Tensile strength [MPa] Thickness [mm] Width [mm] Length [mm] Light Gauge Steel Plates 204 550 0.89 120 1000 CFRP Plates 165 3100 1.20 50 1000 The epoxy used for both materials was BASF Concresive 1414 to eliminate any effect the epoxy could have on the performance of the specimens under loading.
[9] Behavior of preloaded RC beams strengthened with CFRP laminates, ZHANG Ai-hui, JIN Wei-liang and LI Gui-bing, Journal of Zhejiang University SCIENCE A, year 7, 3rd quarter, 2006 pages 436 -444.
Materials: Concrete: concrete used for the beam specimens was normal concrete, concrete strength of tested cylinders had a strength fc’= 25 MPa.
The materials used for strengthening beam specimens: · Light gauge galvanized steel plates
Properties of material used for strengthening beam specimens Material E-modulus [GPa] Tensile strength [MPa] Thickness [mm] Width [mm] Length [mm] Light Gauge Steel Plates 204 550 0.89 120 1000 CFRP Plates 165 3100 1.20 50 1000 The epoxy used for both materials was BASF Concresive 1414 to eliminate any effect the epoxy could have on the performance of the specimens under loading.
[9] Behavior of preloaded RC beams strengthened with CFRP laminates, ZHANG Ai-hui, JIN Wei-liang and LI Gui-bing, Journal of Zhejiang University SCIENCE A, year 7, 3rd quarter, 2006 pages 436 -444.
Online since: June 2013
Authors: Adrien Leygue, Jean Yves Hascoet, Matthieu Rauch, Francisco Chinesta, Fabien Poulhaon
Yang: Modeling and Real-time Compensation of Cutting Forceinduced
Errors on NC Turning Center Key Engineering Materials, Vols 315/316, 274-278 (2006)
[3] I.
Plennel: A new approach for toolpath programming in incremental sheet forming International Journal for Material Forming Suppl 1, 1191-1194 (2008) [8] M.
Hascoet: Interest of Multiphysics and Multilevel Simulation Approaches to Enhance the Machining Process Advanced Materials Research, Vol. 223, 891-899 (2011) [10] D.
Chinesta: Efficient mould cooling optimization by using model reduction International Journal of Material Forming, 4/1, 71-82 (2011) [12] C.L.
Liao: Prediction of cutting forces in ball-end milling by means of geometric analysis Journal of Materials Processing Technology Vol 205 24-53 (2008)
Plennel: A new approach for toolpath programming in incremental sheet forming International Journal for Material Forming Suppl 1, 1191-1194 (2008) [8] M.
Hascoet: Interest of Multiphysics and Multilevel Simulation Approaches to Enhance the Machining Process Advanced Materials Research, Vol. 223, 891-899 (2011) [10] D.
Chinesta: Efficient mould cooling optimization by using model reduction International Journal of Material Forming, 4/1, 71-82 (2011) [12] C.L.
Liao: Prediction of cutting forces in ball-end milling by means of geometric analysis Journal of Materials Processing Technology Vol 205 24-53 (2008)
Online since: February 2014
Authors: Gui Guang Chen, Shi Hai Huang, Zhi Qun Liang, Xian Bo Cheng
China;
3College of Life Science and Technology, Guangxi University, Nanning 530005, P.R.
Introduction Bagasse pulp, one of the major agro-residues, can be used as an important source of raw material for pulp and paper manufactures, playing an important role in solving the problem of raw materials shortage and it is being widely applied to the pulp and paper industry, which also brings good economic profits and social benefits.
In Guangxi, (China) where sugarcane is the abundantly grown crop, bagdsse is one of the major cheap raw materials available for paper making.
Experimental Materials.
Acknowledgments This study was supported by the National Natural Science Foundation of China (Grant 20066001).
Introduction Bagasse pulp, one of the major agro-residues, can be used as an important source of raw material for pulp and paper manufactures, playing an important role in solving the problem of raw materials shortage and it is being widely applied to the pulp and paper industry, which also brings good economic profits and social benefits.
In Guangxi, (China) where sugarcane is the abundantly grown crop, bagdsse is one of the major cheap raw materials available for paper making.
Experimental Materials.
Acknowledgments This study was supported by the National Natural Science Foundation of China (Grant 20066001).
Online since: August 2014
Authors: Tian Fei Ma, Guo Qi Liu, Feng Ling Yang, Wen Gang Yang
a b
Fig. 1 Damaged purging plug
a-Work face of purging plug produces peeling ; b-Fracture in a certain distance from the work face
Despite having been relatively well studied from aspects of both materials and structures, no attempts have been made to explore the effect of air way structure to the performance of purging plug.
Physical Properties and Boundary Conditions 3.1 Physical Properties Physical properties of various materials in calculation model are shown in Table 1[1].
Acknowledgements Thanks are due to the National Natural Science Foundation of China (NO. 51372231) for the financial support.
Hubei: Wuhan University of Science and Technology, 2009
Journal of Wuhan University of Technology, 2010, 32(7): 8-11
Physical Properties and Boundary Conditions 3.1 Physical Properties Physical properties of various materials in calculation model are shown in Table 1[1].
Acknowledgements Thanks are due to the National Natural Science Foundation of China (NO. 51372231) for the financial support.
Hubei: Wuhan University of Science and Technology, 2009
Journal of Wuhan University of Technology, 2010, 32(7): 8-11
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
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.
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)
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.
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.
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.