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Online since: July 2014
Authors: Pavel Reiterman, Petr Konvalinka, Ondřej Holčapek
Introduction
Several research teams from various science research centers and universities from around the world devote their attention to the high-performance concrete area based on the Portland cement.
These high utility materials have also disadvantages for example low fire resistance, especially when silica aggregates is used.
From these reasons is necessary to protect their surface by secondary cladding from refractory materials or other special technology.
Acknowledgement This research work was financially supported by the Czech Science Foundation over the project No.: P104/12/0791 which is gratefully acknowledge.
Konvalinka: Mix design of UHPFRC and its response to projectile impact, International Journal of Impact Engineering, pp. 158-163 (2014) [2] R.
These high utility materials have also disadvantages for example low fire resistance, especially when silica aggregates is used.
From these reasons is necessary to protect their surface by secondary cladding from refractory materials or other special technology.
Acknowledgement This research work was financially supported by the Czech Science Foundation over the project No.: P104/12/0791 which is gratefully acknowledge.
Konvalinka: Mix design of UHPFRC and its response to projectile impact, International Journal of Impact Engineering, pp. 158-163 (2014) [2] R.
Online since: February 2016
Authors: Pavel A. Akimov, Alexandr M. Belostosky, Sergey B. Penkovoy, Taymuraz B. Kaytukov, Sergey V. Scherbina
Buildings from prefabricated concrete standard panels, produced at specialized factories reduce construction time, the amount of materials used, and the cost of the entire structure, improving the general quality of concrete panels themselves, compared to monolithic.
Acknowledgements This work was financially supported by the Grants of Russian Academy of Architecture and Construction Sciences (7.1.7, 7.1.8).
Bathe, The Finite Element Method, in Encyclopedia of Computer Science and Engineering, B.
Fialko, Problems of computational mechanics relate to finite-element analysis of structural constructions, International Journal for Computational Civil and Structural Engineering, Vol. 1, No. 2 (2005) 72-86
Akimov, Correct Discrete-Continual Finite Element Method of Structural Analysis Based on Precise Analytical Solutions of Resulting Multipoint Boundary Problems for Systems of Ordinary Differential Equations, Applied Mechanics and Materials. 204-208 (2012) 4502-4505
Acknowledgements This work was financially supported by the Grants of Russian Academy of Architecture and Construction Sciences (7.1.7, 7.1.8).
Bathe, The Finite Element Method, in Encyclopedia of Computer Science and Engineering, B.
Fialko, Problems of computational mechanics relate to finite-element analysis of structural constructions, International Journal for Computational Civil and Structural Engineering, Vol. 1, No. 2 (2005) 72-86
Akimov, Correct Discrete-Continual Finite Element Method of Structural Analysis Based on Precise Analytical Solutions of Resulting Multipoint Boundary Problems for Systems of Ordinary Differential Equations, Applied Mechanics and Materials. 204-208 (2012) 4502-4505
Online since: July 2011
Authors: Yao Dong Gu, Yi Chen Lu
Evaluation of the mechanical performance of woodball mallet: a finite element study
Yichen Lu1, a, Yaodong Gu2
1Department of Physical Education, Zhejiang Wanli University, Ningbo China
2Faculty of Sports Science, Ningbo University, Ningbo China
aluyichen1@sina.com
Keywords: woodball. finite element analysis. stress. contact pressure
Abstract.
Fig. 1 The geometry information of woodball components The material properties of woodball components was listed in table 1.
Table.1 The material properties of woodball components.
For further study, it is important to represent the higher fidelity of the input conditions for the FEA, such as the motion and constraint of the grip, in addition to that of the geometry and material properties of the FE models, and the input conditions were suitable for the constructed model.
Development and use of one-dimensional models of a golf ball, Journal of Sports Sciences 20 (2002) 635-641
Fig. 1 The geometry information of woodball components The material properties of woodball components was listed in table 1.
Table.1 The material properties of woodball components.
For further study, it is important to represent the higher fidelity of the input conditions for the FEA, such as the motion and constraint of the grip, in addition to that of the geometry and material properties of the FE models, and the input conditions were suitable for the constructed model.
Development and use of one-dimensional models of a golf ball, Journal of Sports Sciences 20 (2002) 635-641
Online since: July 2011
Authors: Jie He, Wen Li Wang, Mang Mang Zhang
Fig.5 shows the Von Mises equivalent welding residual stress contour in the dual role of the welding residual stress and the train load, and the results at the joint of lower chord member and gusset plate has reached or even exceeded the material yield strength of Q345.
Beijing: Science and Technology Press. 1997
China Civil Engineering Journal, 2004,vol 6, pp: 30~34
Journal of Dalian University of Technology,2003, vol 2, pp: 218~222
Fatigue strength evaluation of welded joints containing high tensile residual stresses[J].International Journal of Fatigue,1986,(82):147-150
Beijing: Science and Technology Press. 1997
China Civil Engineering Journal, 2004,vol 6, pp: 30~34
Journal of Dalian University of Technology,2003, vol 2, pp: 218~222
Fatigue strength evaluation of welded joints containing high tensile residual stresses[J].International Journal of Fatigue,1986,(82):147-150
Online since: October 2011
Authors: Qing Sen Shang, Zhan Yong Yao, Li Jian Zhou, Jian Min Guo, Na Wang
Several structure model size (x, y) are set to 3.75 m × 4.0 m, and the different structures are set into the thickness and the material parameters of each layer structure respectively.
(1)Whereis creep strain rate, is equivalent stress, t is load accumulative total duration time, and A,m,n are parameters related to material properties.
(In Chinese) [3] Ping Li, Binggang Wang and Zhengqi Zhang: submitted to Journal of Highway and Transportation Research and Development (2011).
(In Chinese) [4] Kai Su, Chunhui Wang, Gang Zhou and Lijun Sun: submitted to Journal of Tongji University(Natural Science) (2008).
(In Chinese) [6] Kai Su and Lijun Sun: submitted to Journal of China and Foreign Highway (2007).
(1)Whereis creep strain rate, is equivalent stress, t is load accumulative total duration time, and A,m,n are parameters related to material properties.
(In Chinese) [3] Ping Li, Binggang Wang and Zhengqi Zhang: submitted to Journal of Highway and Transportation Research and Development (2011).
(In Chinese) [4] Kai Su, Chunhui Wang, Gang Zhou and Lijun Sun: submitted to Journal of Tongji University(Natural Science) (2008).
(In Chinese) [6] Kai Su and Lijun Sun: submitted to Journal of China and Foreign Highway (2007).
Online since: May 2011
Authors: Feng Peng Zhang, Yin Bo Zuo, Jin Chao Ma, Jun Liu
Experiment Design
In this study, a total of nine RC beam of rectangular section are adapted and the geometry and reinforcement of the beams are showed in Fig. 1, the material properties are showed in Table 1.
Material Properties Material Type fcu[MPa] fyv[MPa] Steel bar Φ10 / 335 Φ22 Φ6 235 Concrete C25 23.6 / C30 31.4 / The experiments in this paper are done by 5,000-ton testing machine in Rock Instability and Control Laboratory of northeastern university, the machine can achieve static load and cyclic loading.
Yu: Journal of Southwest Jiaotong University, Vol. 29, No. 5 (1994), p. 562-573, In Chinese
Ning: Journal of Liaoning Institute of Technology.
Huang: Journal of Dalian University of Technology, Vol.46, No.1 (2006), p. 69-74, In Chinese
Material Properties Material Type fcu[MPa] fyv[MPa] Steel bar Φ10 / 335 Φ22 Φ6 235 Concrete C25 23.6 / C30 31.4 / The experiments in this paper are done by 5,000-ton testing machine in Rock Instability and Control Laboratory of northeastern university, the machine can achieve static load and cyclic loading.
Yu: Journal of Southwest Jiaotong University, Vol. 29, No. 5 (1994), p. 562-573, In Chinese
Ning: Journal of Liaoning Institute of Technology.
Huang: Journal of Dalian University of Technology, Vol.46, No.1 (2006), p. 69-74, In Chinese
Online since: December 2010
Authors: Q.J. Liu, J.H. Yue, Y.F. Wang, J.C. Dong, Wang Tai Yong
A variable-feed rate CNC interpolator for constant material removal rates along Pythagorean-Hodograph curves was suggested in [5].
And this work was supported in part by the National High Technology Research and Development Program of China (Grant No. 2007AA042005); Tianjin projects under scientific and technological planning (Grant No. 08ZCKGX02300), the nation special programs (Grant No. 2009ZX04014-101,2009zx04014-021), And State Natural Sciences fund ((Grant No.50975193).
Hu: International Journal of Machine Tools & Manuf-acture, 2003, 43:1259-1267
[8] S L.Omirou: Journal of Materials Processing Technology, 2003, 141:343-350
Yamazaki, et al: International journal of Machine Tools & Manufacture, 2005, 45: 433-444
And this work was supported in part by the National High Technology Research and Development Program of China (Grant No. 2007AA042005); Tianjin projects under scientific and technological planning (Grant No. 08ZCKGX02300), the nation special programs (Grant No. 2009ZX04014-101,2009zx04014-021), And State Natural Sciences fund ((Grant No.50975193).
Hu: International Journal of Machine Tools & Manuf-acture, 2003, 43:1259-1267
[8] S L.Omirou: Journal of Materials Processing Technology, 2003, 141:343-350
Yamazaki, et al: International journal of Machine Tools & Manufacture, 2005, 45: 433-444
Online since: February 2014
Authors: Sheng Li Tang, Bei Bei Han, Le Zhou
Introduction
With the technical progress in the field of machinery, materials etc, landslide control measures also develop in the direction of light-duty and miniaturization, and micro-pile conform to this trend.
Packing material of micro-pile is PO42.5 cement and medium sand, and ratio of water, cement, sand is 0.5:1:0. 2. 1.0 1.5 1.0 1.0 1.0 1.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 P P P Steel beam Steel beam Micro-pile Micro-pile Micro-pile The ground (a) (b) (c) Fig. 1: The picture of micro-piles of layout and stress (a)Single micro-pile; (b) the steel frame of three micro-piles; (c) the steel frame of four micro-piles Analysis on Pile Top Displacement.
Chinese Journal of Rock Mechanics and Engineering, 2006, 25(2): 117-123.
Chinese Journal of Rock Mechanics and Engineering, 2004, 23(20): 3541-3546.
Journal of University of Science and Technology Beijing, 2004, 26(3): 240-243.
Packing material of micro-pile is PO42.5 cement and medium sand, and ratio of water, cement, sand is 0.5:1:0. 2. 1.0 1.5 1.0 1.0 1.0 1.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 0.5 P P P Steel beam Steel beam Micro-pile Micro-pile Micro-pile The ground (a) (b) (c) Fig. 1: The picture of micro-piles of layout and stress (a)Single micro-pile; (b) the steel frame of three micro-piles; (c) the steel frame of four micro-piles Analysis on Pile Top Displacement.
Chinese Journal of Rock Mechanics and Engineering, 2006, 25(2): 117-123.
Chinese Journal of Rock Mechanics and Engineering, 2004, 23(20): 3541-3546.
Journal of University of Science and Technology Beijing, 2004, 26(3): 240-243.
Online since: August 2015
Authors: E. Siva Reddy, K. Krishna Reddy, R. Meenakshi Reddy
Brindavan Institute of Technology & Science, Kurnool, A.P., India
aenumulagprec@gmail.com, brmreddy123@gmail.com, ckkreddy64@yahoo.com
Keywords: Parabolic Trough collector (PTC), thermal efficiency, Al2O3/H2O nanofluid, enhancement of thermal conductivity, flow rates, particle concentrations.
As surface to volume ratio of material in nano scale is very large, surface tension between nano particles results in aggregation and deposits.
REFERENCES [1] Asaad Rehman Saeed Al-Hilphy, A theoretical and practical study for the incident solar radiation intensity, IOSR Journal of Engineering. 3 (2013) 25-35
Gandhi (1977), Solid-Liquid Flow Slurry Pipeline Transportation, Series on Bulk Materials Handling, Trans.
Patil , Solar Flat Plate Collector Analysis, IOSR Journal of Engineering. 2 (2012) 207-213.
As surface to volume ratio of material in nano scale is very large, surface tension between nano particles results in aggregation and deposits.
REFERENCES [1] Asaad Rehman Saeed Al-Hilphy, A theoretical and practical study for the incident solar radiation intensity, IOSR Journal of Engineering. 3 (2013) 25-35
Gandhi (1977), Solid-Liquid Flow Slurry Pipeline Transportation, Series on Bulk Materials Handling, Trans.
Patil , Solar Flat Plate Collector Analysis, IOSR Journal of Engineering. 2 (2012) 207-213.
Online since: June 2014
Authors: Abdul Mutalib Leman, Nor Halim Hasan, Md Radzai bin Said, Norzelawati Asmuin
Leman3,c, NorzilawatiAsmuin4,d
1,2Department of Structure and Material, Faculty of Mechanical, Universiti Teknikal Malaysia Melaka, Hang Tuah Jaya, 76100 Durian Tunggal, Melaka, Malaysia.
3Faculty of Engineering Technology, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia.
4Faculty of Mechanical and Manufacturing Engineering, Universiti Tun Hussein Onn Malaysia, 86400 Parit Raja, Batu Pahat, Johor, Malaysia.
Recommend considering how local air is changed efficiently would be key factor for efficient and economic removal and to provide good exhaust efficiency of contaminant materials could be acquired.
Indian Journal Occupational and Environmental Medicine, 12, 82-87
International Journal of Environmental Engineering Science and Technology Research, 1 (2), 28-36
Journal of Occupational Safety and Health, 9 (3), 1-9.
Recommend considering how local air is changed efficiently would be key factor for efficient and economic removal and to provide good exhaust efficiency of contaminant materials could be acquired.
Indian Journal Occupational and Environmental Medicine, 12, 82-87
International Journal of Environmental Engineering Science and Technology Research, 1 (2), 28-36
Journal of Occupational Safety and Health, 9 (3), 1-9.