Sort by:
Publication Type:
Open access:
Publication Date:
Periodicals:
Search results
Online since: August 2013
Authors: He Xue, Min Qiao, Zhen Wen Wang, Xiao Yan Gong
Effect of Crack Statically Growing on Stress and Strain at Crack Tip for Power Hardening Materials
He Xue 1, a, Min Qiao 1,b , ZhenWen Wang 1,c , XiaoYan Gong 1,d
1 School of Mechanical Engineering, Xi’an University of Science and Technology, 710054, China
axue_he@hotmail.com, bqiaom_1989@163.com, c2007.wzw@163.com , dgongxymail@163.com
Keywords: crack statically growing; residual plastic strain; power hardening materials; elastic-plastic finite element
Abstract.
Quantitative predicting EAC growth rate in key nuclear structural materials is one of the key issues of the long-term safe operation of nuclear power plants [2].
The researches show that EAC growth rate was dominated by the stress and strain at the crack tip in key structural materials of nuclear power plants [3].
Numerous austenitic stainless steels and nickel-based alloys are power hardening materials, which is widely used in key structural materials of nuclear power plants.
Acknowledgement This work was financially supported by the National Natural Science Foundation of China(11072191) References [1] HAN E H, WANG J Q, WU X Q: Acta Metallurgica Sinica Vol.46 (2010),p.1379 [2] CHOPRA O K, CHUNGA H M, KASSNER T F: Nuclear Engineering and Design Vol. 194 (1999),p.205 [3] GUAN Y X, Dong C F, LI Y: Science and Technology Review Vol. 29(2011),p.17 [4] PENG Q J, KWON J, SHOJI T: Journal of Nuclear Materials Vol. 324 (2004),p.52 [5] HALL JR M M: Corrosion Science Vol. 50(2008),p.2902 [6] SHOJI T, LU Z P, MURAKAMI H :Corrosion Science Vol. 52(2010),p.769 [7] XUE H, SHOJI T: Transactions of the ASME-Journal of Pressure Vessel and Technology Vol. 129(2007),p.254 [8] XUE H, ZHAO D, PENG Q J: Journal of materials Vol. 5(2011),p.18 [9] XUE H, LI Z J, LU Z P: Nuclear Engineering and Design Vol. 241(2011),p.73 [10] XUE H, OGAWA K, SHOJI T: Nuclear Engineering and Design Vol. 236(2009),p.628
Quantitative predicting EAC growth rate in key nuclear structural materials is one of the key issues of the long-term safe operation of nuclear power plants [2].
The researches show that EAC growth rate was dominated by the stress and strain at the crack tip in key structural materials of nuclear power plants [3].
Numerous austenitic stainless steels and nickel-based alloys are power hardening materials, which is widely used in key structural materials of nuclear power plants.
Acknowledgement This work was financially supported by the National Natural Science Foundation of China(11072191) References [1] HAN E H, WANG J Q, WU X Q: Acta Metallurgica Sinica Vol.46 (2010),p.1379 [2] CHOPRA O K, CHUNGA H M, KASSNER T F: Nuclear Engineering and Design Vol. 194 (1999),p.205 [3] GUAN Y X, Dong C F, LI Y: Science and Technology Review Vol. 29(2011),p.17 [4] PENG Q J, KWON J, SHOJI T: Journal of Nuclear Materials Vol. 324 (2004),p.52 [5] HALL JR M M: Corrosion Science Vol. 50(2008),p.2902 [6] SHOJI T, LU Z P, MURAKAMI H :Corrosion Science Vol. 52(2010),p.769 [7] XUE H, SHOJI T: Transactions of the ASME-Journal of Pressure Vessel and Technology Vol. 129(2007),p.254 [8] XUE H, ZHAO D, PENG Q J: Journal of materials Vol. 5(2011),p.18 [9] XUE H, LI Z J, LU Z P: Nuclear Engineering and Design Vol. 241(2011),p.73 [10] XUE H, OGAWA K, SHOJI T: Nuclear Engineering and Design Vol. 236(2009),p.628
Online since: September 2009
Authors: Xi Peng Xu, Jian Yun Shen
Comparisons of Surface Roughness for Precision
Ground Different Brittle Materials
Jianyun Shen1,a and Xipeng Xu1,b
1
College of Mechanical Engineering and Automation, Huaqiao University, China
a
jianyun@hqu.edu.cn, b
xpxu@hqu.edu.cn
Keywords: Grinding, Surface roughness, Brittle material, Stone
Abstract.
Brittle materials are popularly used as engineering materials for excellent properties.
And the natural stone is popularly applied in the architectural engineering.
Xu: Key Eng.
Xu: Key Eng.
Brittle materials are popularly used as engineering materials for excellent properties.
And the natural stone is popularly applied in the architectural engineering.
Xu: Key Eng.
Xu: Key Eng.
Online since: December 2013
Authors: Yong Cheng Guo, Jin Long Guo
The classification and analysis of risk response measures in the hydraulic engineering slope
Yongcheng Guo1,2,a, Jinlong Guo1, 2,b
1College of Civil Engineering and Architecture, China Three Gorges University Yichang 443002, China
2 Key Laboratory of Geological Hazards on Three Gorges Reservoir Area, Ministry of Education , Yichang 443002, China
aych_guo@126.com,b125317331@qq.com
Key words: classification; analysis; risk response measures; engineering slope
Abstract: In view of the definition on the slope of the specification, the classification of water conservancy engineering slope is obtained.
After the risk analysis and evaluation on the slope, according to the characteristics of the water conservancy engineering slope, it is proposed that engineering measures and non-engineering measures can be adopted to transfer or reduce the risk.
Fig. 4 The view of the Shuibuya Project Fig. 5 The material yard slope of Sanliping Fig. 6 The view of Qianchang landslide The Material Yard Slope.
The method of risk transfer consists of engineering measure and non-engineering measure [5].
In the actual operation process, it involves many qualitative and quantitative factors and engineering experience and expert knowledge, essentially it is a comprehensive system of systems engineering and knowledge engineering.
After the risk analysis and evaluation on the slope, according to the characteristics of the water conservancy engineering slope, it is proposed that engineering measures and non-engineering measures can be adopted to transfer or reduce the risk.
Fig. 4 The view of the Shuibuya Project Fig. 5 The material yard slope of Sanliping Fig. 6 The view of Qianchang landslide The Material Yard Slope.
The method of risk transfer consists of engineering measure and non-engineering measure [5].
In the actual operation process, it involves many qualitative and quantitative factors and engineering experience and expert knowledge, essentially it is a comprehensive system of systems engineering and knowledge engineering.
Online since: May 2012
Authors: Li Li, Yi Zheng, Jin Qing Jia, Wei Shi Xiong, Xiao Jun Shen, Fei Gao
Optimization Design of Geotechnical Engineering Based on Reliability and Lingo
ZHENG Yi 1, 2,a, JIA Jin-qing 1,a, XIONG Wei-shi 3,a, SHEN Xiao-jun 4,a,
GAO Fei 4,a and LI Li2,b
1 State Key Laboratory of Coastal and Offshore Engineering, DaLian University of Technology, Dalian China
2 LiaoNing Building Materials Inspection Institute, Shenyang China
3 ChongQing Traffic Construction (Group) Limited Liability Company, Chongqing China
4 ChongQing Center for Test of Highway Engineering, Chongqing China
adandongzy@126.com, blili6899@163.com
Keywords: Geotechnical Engineering, Reliability, optimization design, nonlinear programming, Lingo.
So it is extremely necessary to put forward optimization design of geotechnical engineering.
So, it is raised that optimization design of geotechnical engineering based on reliability in this paper.
So its applying research on these ways will push forward application of engineering optimization design based on theory of reliability in geotechnical engineering.
Chinese Journal of Rock Mechanics and Engineering. 2002, 21(5):736-739. in Chinese
So it is extremely necessary to put forward optimization design of geotechnical engineering.
So, it is raised that optimization design of geotechnical engineering based on reliability in this paper.
So its applying research on these ways will push forward application of engineering optimization design based on theory of reliability in geotechnical engineering.
Chinese Journal of Rock Mechanics and Engineering. 2002, 21(5):736-739. in Chinese
Online since: January 2008
Authors: W. Ahmed, N. Ali, Andreas Öchsner
Biomedical engineering involves the application of the principles and techniques of engineering to the enhancement of medical science as applied to humans or animals.
It involves an interdisciplinary approach which combines the materials, mechanics, design, modelling and problem-solving skills employed in engineering with medical and biological sciences so as to improve the health, lifestyle and quality-of-life of individuals.
Prime examples of the successful application of biomedical engineering include the development and manufacture of biocompatible prostheses, medical devices, diagnostic devices and imaging equipment and pharmaceutical drugs.
The contents describe a number of materials/engineering approaches that are currently being explored in order to create systems that can impart clinical benefits.
It is intended that this volume should serve as a key reference for those who wish to contribute to the global endeavour towards improving the clinical outcomes for patients of today and tomorrow.
It involves an interdisciplinary approach which combines the materials, mechanics, design, modelling and problem-solving skills employed in engineering with medical and biological sciences so as to improve the health, lifestyle and quality-of-life of individuals.
Prime examples of the successful application of biomedical engineering include the development and manufacture of biocompatible prostheses, medical devices, diagnostic devices and imaging equipment and pharmaceutical drugs.
The contents describe a number of materials/engineering approaches that are currently being explored in order to create systems that can impart clinical benefits.
It is intended that this volume should serve as a key reference for those who wish to contribute to the global endeavour towards improving the clinical outcomes for patients of today and tomorrow.
Online since: October 2011
Authors: Xin Wen Wang
Cyber-Physical Systems (CPS) is integration of information systems and physical systems, so as to achieve real-time perception, dynamic control and information services of large-scale engineering systems, but the research is still in infancy.
CPS summary CPS Proposed CPS is an emerging cross-disciplinary research in physics, biology, engineering and information science, etc.
We can see, CPS achieves to extend human control in time, space and other aspects; and is the integration calculation of human, machine and material.
So, in China CPS is called “human machine material fusion system” [2].
Electrical Engineering and Computer Sciences University of California at Berkeley.2008. 1-10 [16] Le Xie,Ilic, M.D.
CPS summary CPS Proposed CPS is an emerging cross-disciplinary research in physics, biology, engineering and information science, etc.
We can see, CPS achieves to extend human control in time, space and other aspects; and is the integration calculation of human, machine and material.
So, in China CPS is called “human machine material fusion system” [2].
Electrical Engineering and Computer Sciences University of California at Berkeley.2008. 1-10 [16] Le Xie,Ilic, M.D.
Online since: April 2014
Authors: Bao Jiang Chen, Tian Zi Ge, Jian Zhi Wang
A Study on the Key Technologies of a Kind of Automatic Packaging System
Chen Baojiang 1, a, Ge Tianzi 2,b and Wang Jianzhi 3,c
1 School of M&E Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, P.R.China
2 School of M&E Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, P.R.China
3 School of M&E Engineering, Beijing University of Civil Engineering and Architecture, Beijing, 100044, P.R.China
achenbaojiang@bucea.edu.cn, b625004018@qq.com, cwangjianzhi163@163.com
Keywords: packaging engineering, manipulator, pneumatic system, intelligent control
Abstract.
The trend of the packaging engineering technologies are being forward to automation and intelligent technologies [1-2].However, in some packaging engineering for procedural materials, such as the packaging of the short and smallish, thin and twiggy materials, there are yet lacking of high mechanical-electronics technology [3].
Packaging Engineering, 2010,13:114-116+121.
Packaging Engineering, 2010,11:80-83+95.
Microelectronic Engineering, 2013, 10(7):258-265
The trend of the packaging engineering technologies are being forward to automation and intelligent technologies [1-2].However, in some packaging engineering for procedural materials, such as the packaging of the short and smallish, thin and twiggy materials, there are yet lacking of high mechanical-electronics technology [3].
Packaging Engineering, 2010,13:114-116+121.
Packaging Engineering, 2010,11:80-83+95.
Microelectronic Engineering, 2013, 10(7):258-265
Online since: August 2017
Authors: María Dolores Marrero-Alemán, Ana M. Aranda-Loureiro, Fernando Ortega-García, Rubén Paz-Hernández, Antonio N. Benítez-Vega, Pedro M. Hernández-Castellano
Development of Interactive Learning Materials in Engineering
of Manufacturing Processes
Hernández-Castellano, Pedro M.a *, Marrero-Alemán, M.
This work presents several interactive learning materials developed by the Group of Educational Innovation Manufacturing Engineering of the University of Las Palmas de Gran Canaria.
The main objective is that these materials could be used in different subjects in the area of knowledge in Engineering of Manufacturing Processes or in other complementary subjects, in order to improve the horizontal and cross-cutting coordination in the new degree titles.
Students of the new degree in Engineering in Industrial Design and Product Development have participated for the elaboration of this work.
These technologies are those of the field of today’s engineering and are essential to achieve the so-called digital competence.
This work presents several interactive learning materials developed by the Group of Educational Innovation Manufacturing Engineering of the University of Las Palmas de Gran Canaria.
The main objective is that these materials could be used in different subjects in the area of knowledge in Engineering of Manufacturing Processes or in other complementary subjects, in order to improve the horizontal and cross-cutting coordination in the new degree titles.
Students of the new degree in Engineering in Industrial Design and Product Development have participated for the elaboration of this work.
These technologies are those of the field of today’s engineering and are essential to achieve the so-called digital competence.
Online since: October 2011
Authors: Xiang Bin Meng, Bo Wang
Currently the landscape design of highway in China is a focus; besides the landscapes along highway, the selection on construction materials for node landscapes of highway entrance, exit, viewing platform, service area and etc. is quite important, which is also a key point if the landscape engineering succeeds.
The leisure area is situated in the south of the highway, where there is flat area and rich plants, and its engineering investment is at the general level.
Overview for Construction of Garden Engineering.
[12] Meng Zhaozhen, Mao Peilin, Huang Qingxi, Liang Yiren: Gardens Engineering.
Construction Materials and Machinery of Gardens Engineering.
The leisure area is situated in the south of the highway, where there is flat area and rich plants, and its engineering investment is at the general level.
Overview for Construction of Garden Engineering.
[12] Meng Zhaozhen, Mao Peilin, Huang Qingxi, Liang Yiren: Gardens Engineering.
Construction Materials and Machinery of Gardens Engineering.
Online since: August 2013
Authors: Chang Chun Yu
Study on the Mechanism of Engineering Ceramics in Rotary Ultrasonic-vibration Grinding
Changchun Yu
Shenyang Ligong University Shenyang, China
Changchunyu2000@163.com
Key words: Engineering ceramics; Ultrasonic-vibration grinding; Grinding mechanism; Material removal rate; Grinding force
Abstract:This paper analysis the process of Al2O3 engineering ceramics grinding and study the mechanism of rotary ultrasonic-vibration grinding.
However, ceramic materials are easy to produce cracks because of its brittleness and high strength, thereby easily leading to stress concentration in use.
(a) (b) (c) Figure 2 Ultrasonic-vibration Grinding Mechanism The main function of rotary ultrasonic grinding of engineering ceramics is detailed as below (as shown in Figure 2): (1) Direct mechanical grinding action of abrasive grains: Abrasive grains rotating together with the tool extrude grinding workpiece materials under static load, thus causing it to produce small amount of plastic deformation and cracks and finally to produce brittle fracture
Status Quo of Processing Technology for Engineering Ceramic Materials [J].
Mechanical Engineering Materials,2000, 24(1):2-5
However, ceramic materials are easy to produce cracks because of its brittleness and high strength, thereby easily leading to stress concentration in use.
(a) (b) (c) Figure 2 Ultrasonic-vibration Grinding Mechanism The main function of rotary ultrasonic grinding of engineering ceramics is detailed as below (as shown in Figure 2): (1) Direct mechanical grinding action of abrasive grains: Abrasive grains rotating together with the tool extrude grinding workpiece materials under static load, thus causing it to produce small amount of plastic deformation and cracks and finally to produce brittle fracture
Status Quo of Processing Technology for Engineering Ceramic Materials [J].
Mechanical Engineering Materials,2000, 24(1):2-5