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Online since: March 2024
Authors: Mosleh Tohidi, Ali B-Jahromi, Alan Janbey
Table 2 Materials’ Properties [33] Elastic Modulus (GPa) (N/m2) Specimen Poisson’s Ratio Density (kg/m3) Concrete 30.5 E09 all 0.2 2500 Steel 210.0 E09 all 0.30 7800 (a) Compressive hardening-CDP Model (b) Tension stiffening-CDP Model (c) Plastic model-reinforcement bar Fig. 9 Properties of materials in CDP and plastic model [43] (a) Compression (b) Tension Fig. 10 Damage parameters for the CDP model [43] 5.4 Material properties The concrete was modeled using concrete damage plasticity (CDP) available in ABAQUS, which can be used for both static and dynamic analyses and in all types of elements.
The input data for the CDP and plastic model in ABAQUS in the form of the stress-strain curve for tensile or compressive behavior of concrete and reinforcement bar in different specimens is displayed in Fig. 9 and the relevant elastic material properties of specimens are shown in Table 2.
National Institute of Building Sciences, Washington (DC)
National Institute of Building Sciences.
ACI Structural Journal; 106(5):600-607
Online since: January 2015
Authors: Sergiy Fialko
Quadrilateral Finite Element for Analysis of Reinforced Concrete Floor Slabs and Foundation Plates Sergiy Fialko 1, a * 1Department of Physics, Mathematics and Applied Computer Science, Cracow University of Technology, Kraków 31-155, Poland asergiy.fialko@gmail.com Keywords: structural mechanics, finite element method, deformation theory of plasticity, reinforced concrete, principle of virtual work.
This model of material does not take into account reduction of stresses in the tensile zone of the concrete in case of crack opening, because it does not include the descending branch of the σi – εi diagram.
Acknowledgments The preparation of this work was supported by National Science Center in Poland, based on the DEC-2011/01/B/ST6/00674 decision, and by IT company SCAD Soft.
Application of particle methods to static fracture of reinforced concrete structures (2006) International journal of fracture, 137, pp. 19 – 49
Online since: October 2013
Authors: Shang Quan Ma, Jing Fu
Exploration of Coalbed Methane Exploitation and Coal Mine Gas Drainage Shang-quan MA, Jing FU North China Institute of Science and Technology, Beijing, China China E-mail:msqsafety2003@163.com Keywords: Coalbed Methane (CBM), Gas Drainage, Exploit, Utilize Abstract: Coalbed methane (CBM) resources are abundant on the earth.
It can be used to generate electricity, as industrial fuel,chemical material and residents living fuel.
Acknowledgements This work was financially supported by the Shanghai Natural Science Foundation (0666666), Innovation Program of Shanghai Municipal Education Commission (060000) and Shanghai Leading Academic Discipline Project of Shanghai Municipal Education Commission (0555555).
Analysis and Countermeasures of Influence Factors of Gas Drainage.Journal of Shanxi Datong University, 2009.23(5):33-35.
Online since: July 2023
Authors: Aser Yalindua, Metilistina Sasinggala, Fione Yalindua
Taro has a great opportunity to be developed as a raw material for food and industry in Indonesia and has the opportunity to be exported to Japan [4,5].
Cultivars as Animal Feed, ASEAN Journal on Science & Technology for Development. 38 (2021) 97–102
A Riview, Food Science and Quality management. 36 (2015) 23-30
Online since: September 2021
Authors: Dara Slobodova, Raisa Gorshkova, Stanislav Pankov, Nickolay Novoselov
Experimental Details Dried and crushed secondary pectin-containing phytomass, namely apple pomace (AP) and albedo pomelo (Pom), was used as a raw material.
Susceptible Gels, Soros Educational Journal. 11 (1998). 138-142
Applied Polymer Science, 107 (1) (2008) 118–123
Sciences., Moscow, 1999.
Online since: May 2012
Authors: Yan Wu, Ya Juan Deng, Yun E Gao, Zhi Lin Liang
Moreover, the extension space of green wedge is provided between the finger-like elongation axis of the star-shaped radial city and the length of contact interface between the city plate and base material are increased to facilitate the exchange of internal and external environments, as shown in figure 3.
Changsha: Changsha University of Science and Technology, 2005,in Chinese [2] Yongtao Li:Theory and method for traffic system layout of small town[D].Xi’an: Chang'an University, 2004,in Chinese [3] Zhi Feng:Urban Traffic Geography[M].Beijing: People’s Press, 1990
Beijing: Beijing University of Technology 2006[7] ,in Chinese [8] Minliu and Guojun Hu:Research on Layout of Expressway Adaptive to Urban Configuration[J].Jiangsu Urban Planning,2008,3:8-13[8] [9] Yanguang Chen an Kun Huang:Journal of Xinyang Normal University,2002,15(1):62-67 [10] Research on the Relationship between Road Network and Regional Economical Development Based on Fractal Theory [D].
Guangzhou: Jiangxi University of Science and Technology, 2009, in Chinese
Online since: January 2003
Authors: Tamás Réti, Károly Böröczky
Introduction In several fields of material sciences, cellular structures (ranging from solid foams to polycrystals) have been the subject of much interest in recent years.
Acknowledgements The financial support of the Hungarian Academy of Sciences (under contract OTKA T030521) is gratefully acknowledged.
Rassat: Toroidal and Spherical Fullerene-like Molecules with Only Pentagonal and Heptagonal Faces, International Journal of Quantum Chemistry, Vol. 84 (2001) p. 136-139
Online since: November 2011
Authors: Juan Teng, Da Yong Gu, Yun Qing Xu, Lei Shi, Wen Li, Chun Xiao Liu, Chun Zhong Zhao, Yan Qiu Yang
Materials Biotinylated DNA capture probes and all primers were synthesised by Takara (Dalian, China),11-Mercaptoundecanoic acid and ethanolamine hydrochloride were obtained from Sigma-Aldrich.
SPR equipment The SPR measurement were conducted using a Laboratory self-assembly SPR (Institute of Electronics, Chinese Academy of sciences), a double channel, double parameters and prism (half a spherical) coupling based instrument.
Journal of Molecular Recognition 14 (2001) 273-294 [15] N Rojo., G Ercilla., I Haro..
Online since: August 2013
Authors: Alvaro Cunha, Elsa Caetano, Carlos Moutinho, Filipe Magalhães
During the last years, the Laboratory of Vibrations and Structural Monitoring (ViBest, www.fe.up.pt/vibest) of the Faculty of Engineering of the University of Porto (FEUP) has developed a remarkable effort in the field of Continuous Dynamic Monitoring of Bridges and Special Structures, having presently ten long-term monitoring applications installed in several kinds of large structures, with different typologies and materials, and aiming four levels of objectives: • The implementation of alert systems used for the safety checking of vibration serviceability limits and the verification of the efficiency of vibration control devices; • The implementation of Structural Health Monitoring (SHM) systems enabling the vibration based damage detection; • The investigation of Wind Engineering problems based on continuous measurements on the prototypes; • The experimental assessment of local vibration fatigue in old metallic railway bridges.
Ackowledgements The authors acknowledge all the financial support provided by the Portuguese Foundation for Science and Technology (FCT) for the development of research in the area of Long-Term Dynamic Monitoring, particularly within the Research Project “DYNAMO_DEMO - Advanced Tools for Dynamic Structural Health Monitoring of Bridges and Special Structures” (PTDC/ECM/109862/2009), as well as all the collaboration of the PhD student Fernando Marques in the context of the fatigue studies developed on the Trezói bridge.
Structural Concrete, Journal of FIB, 8, No.2, PP.67-85, 2007
Online since: May 2010
Authors: Francisco Javier Campa, Luis Norberto López de Lacalle, Gorka Urbicain, David Olvera
The amount of material beneath the flank face of the tool is first estimated and then used to predict the frictional-damping force.
In finishing operations, the material is mainly removed by the tip of the tool.
Transactions of ASME Journal of Engineering for Industry 87 (1965) 464-470
Campa et al., Definition of cutting conditions for thin-to-thin milling of aerospace low rigidity parts, Proceedings of the 2008 International Manufacturing Science and Engineering Conference MSEC2008, Illinois, USA, October 2008
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